PACES Alasdair Scott BSc (Hons) MBBS PhD 2012 dr.aj.scott@gmail.com Medicine Contents Cardiology .................................................................................................................................................................................. 3 Pulmonology ............................................................................................................................................................................ 16 The Medical Abdomen ............................................................................................................................................................. 30 Neurology................................................................................................................................................................................. 49 Shorts ....................................................................................................................................................................................... 71 © Alasdair Scott, 2012 2 Cardiology Contents General Cardio Tips ................................................................................................................................................................... 4 Aortic Stenosis ........................................................................................................................................................................... 5 Mitral Regurgitation .................................................................................................................................................................... 6 Aortic Regurgitation ................................................................................................................................................................... 7 Mitral Stenosis ........................................................................................................................................................................... 8 Rheumatic Fever........................................................................................................................................................................ 9 Infective Endocarditis ................................................................................................................................................................. 9 Valve Replacement .................................................................................................................................................................. 10 Valve Prostheses: Key Facts ................................................................................................................................................... 11 Atrial Fibrillation ....................................................................................................................................................................... 12 AF: Key Facts .......................................................................................................................................................................... 13 Pacemakers ............................................................................................................................................................................. 14 Chronic Heart Failure ............................................................................................................................................................... 15 © Alasdair Scott, 2012 3 General Cardio Tips Examination Viva Midline Sternotomy Completion Observation chart Drug chart 12-lead ECG Positive Finding Metallic click Murmur Vein harvest on legs Old scar, young pt. Immunosuppression Nothing Indications Mechanical valve Tissue valve Valvotomy CABG Repair of congenital defect Heart transplant Trauma: tamponade, aortic IMA CABG Tissue valve Cardiac Causes of Clubbing Infective endocarditis Congenital cyanotic heart disease Fallot’s Tetralogy VSD Pulmonary stenosis RVH Overriding aorta Transposition of the Great Vessels Atrial myxoma Assoc. c̄ Carney Complex / LAME Syndrome Lentigines: spotty skin pigmentation Atrial Myxoma Endocrine tumours: pituitary Schwannomas Collapsing Pulse Caused by hyperdynamic circulation AR Thyrotoxicosis Pregnancy Anaemia Absent Radial Pulse Dead Trauma Thrombosis or embolism Coarctation of the aorta Takayasu’s Arteritis Impalpable Apex Beat: COPD COPD Obesity Pericardial effusion Dextrocardia Features of Pulmonary HTN ↑ JVP Left parasternal heave Loud P2 + PSM of TR Pulsatile hepatomegaly Ascites and peripheral oedema Heart Sounds S1: mitral valve closure S2: aortic valve closure S3: rapid ventricular filling of dilated left ventricle S4: atrial contraction against stiff ventricle © Alasdair Scott, 2012 Presentation On peripheral inspection… The pulse… On examination of the precordium… Significant negatives Absence of CCF Disease severity Evidence of cause Differential Dx Hx Discussion Ix Rx Hx Symptoms: dyspnoea, chest pain, palpitations, syncope LVF: PND, orthopnoea IE: fever, wt. loss, night sweats CV Risk: smoking, DM, lipids, HTN, FH PMH: rheumatic fever DH: antiplatelet agents, statins Ix ECG Evidence of ischaemia Arrhythmia Blood FBC: anaemia exacerbates cardiac symptoms U+E: renovascular disease NT-proBNP: heart failure Fasting lipids and glucose: cardiac risk Imaging CXR Cardiomegaly Pulmonary oedema Valve calcification Echo Dx Valve function LV Function Cardiac catheterisation Evaluate coronary arteries Mx General MDT: GP, cardiologist, cardiothoracic surgeon, dietician, specialist nurses Optimise CV risk: statins, anti-HTN, DM, anti-plat Monitor: regular f/up and echo Specific Surgical 4 Aortic Stenosis Examination Viva Peripheral Inspection Hx: Clinical Symptoms of Severe AS Often nothing specific Angina: 50% dead in 5yrs Syncope: 50% dead in 3yrs Dyspnoea: 50% dead in 2yrs Pulse Slow-rising (anacrotic) Narrow pulse pressure (<30mmHg) Precordium Pacemaker Aortic thrill Apex: Forceful, non-displaced (pressure overload) Heart Sounds Quiet A2 Early syst. ejection click if pliable (young) valve S4 (forceful A contraction vs. hypertrophied V) Murmur ESM nd Right 2 ICS Sitting forward in end-expiration Radiates to carotids Clinical Signs of Severe AS Quiet / absent A2 S4 Narrow pulse pressure Decompensation: LVF Significant Negatives Infective endocarditis LVF Indicators of severity Differential Aortic sclerosis: no radiation, normal pulse character MR HOCM: valsalva ↑s murmur, squatting ↓s murmur Right-sided: PS Causes Age-related senile calcification Bicuspid aortic valve Rheumatic heart disease Ix ECG LVH Arrhythmias Blood: FBC, U+E, NT-proBNP, lipids, glucose CXR Calcified AV LVH Pulmonary oedema Echo + Doppler Severity Cause: Bicuspid valve, thick calcified cusps LV function Other valve function Echo Features of Severe AS (AHA 2006) 2 Valve area <1cm Pressure gradient >40mmHg Jet velocity >4m/s Cardiac Catheterisation Valve gradient Assess coronaries (needed if surgery planned) Mx General MDT: GP, cardiologist, cardiothoracic surgeon, dietician, specialist nurses Optimise CV risk: statins, anti-HTN, DM, anti-plat Monitor: regular f/up and echo Surgical: Valve Replacement ± CABG Indications Symptomatic AS Severe asymptomatic AS c̄ ↓ EF (<50%) Severe AS undergoing CABG or other valve op Mortality: 3-5% depending on pts. EuroSCORE Other Options TAVI: Transcatheter Aortic Valve Implantation Balloon valvuloplasty © Alasdair Scott, 2012 5 Mitral Regurgitation Examination Viva Peripheral Inspection Ix Warfarin medic alert bracelet Pulse AF ECG Arrhythmias LVH P-mitrale Blood: FBC, U+E, NT-proBNP, lipids, glucose Precordium Left parasternal heave (RVH) Apex: displaced Volume overload as ventricle has to pump forward SV and regurgitant volume → eccentric hypertrophy Heart Sounds Soft S1 S2 not heard separately from murmur ± loud P2 (if PTH) Murmur Blowing PSM Apex Left lateral position in end expiration Radiates to the axilla CXR LA and LV hypertrophy Mitral valve calcification Pulmonary oedema Echo + Doppler Severity LV function Other valve function Echo Features of Severe MR (AHA 2006) Jet width >0.6cm Systolic pulmonary flow reversal Regurgitant volume >60ml Clinical Signs of Severe MR LVF AF Cardiac Catheterisation Assess coronaries (needed if surgery planned) Significant Negatives Mx Infective endocarditis Indicators of severity: AF, LVF Differential AS VSD Right-sided: TR Causes Functional: LV dilatation (e.g. 2O to HTN or idiopathic) Annular calcification → contraction Rheumatic heart disease Mitral valve prolapse General MDT: GP, cardiologist, cardiothoracic surgeon, dietician, specialist nurses Optimise CV risk: statins, anti-HTN, DM, anti-plat Monitor: regular f/up and echo Specific AF: rate control and anticoagulate Emboli: anticoagulate ↓ afterload ACEi or β-B (esp. carvedilol) Diuretics Surgical Valve replacement or repair Aim to replace the valve before significant LV dilation and dysfunction. Indications Symptomatic Prognosis Often asymptomatic for >10yrs Symptomatic: 25% mortality @ 5yrs © Alasdair Scott, 2012 6 Aortic Regurgitation Examination Viva Peripheral Inspection Ix Eponymous Signs Quincke’s: capillary pulsation in nail beds Corrigan’s: visible vigorous carotid pulsation De Musset’s: head nodding Traube’s: pistol-shot sound over femorals Duroziez’s Systolic murmur over the femoral artery c̄ proximal compression. Diastolic murmur c̄ distal compression Mueller’s: systolic pulsations of the uvula Rosenbach’s: systolic pulsations of the liver ECG LVH LV strain: lateral T wave inversion Cause Marfanoid: tall, thin, long arms, high-arched palate Ank spond: cervical kyphosis Pulse Collapsing pulse Wide pulse pressure: e.g. 180/45 Precordium Aortic thrill Apex: displaced (volume overload) Heart Sounds Soft S2 ± S3 Murmur High-pitched EDM LLSE (3rd left IC parasternal) Sitting forward in end-expiration Possible Additional Murmurs Ejection systolic flow murmur Austin-Flint murmur Rumbling MDM @ apex 2O regurgitant jet fluttering the anterior mitral valve Clinical Signs of Severe AR Collapsing pulse Wide pulse pressure LVF Significant Negatives Infective endocarditis Indicators of severity, LVF, wide PP, collapsing pulse Differential MS Right-sided: PR, TS Blood Standard: FBC, U+E, NT-proBNP, lipids, glucose AI disease: ESR, HLA-B27, ANA CXR Cardiomegaly Pulmonary oedema Echo + Doppler Severity Jet width (>65% of outflow tract = severe) Regurgitant jet volume Premature closing of the mitral valve Cause: bicuspid valve, vegetations, dissection LV function Other valve function Cardiac Catheterisation Assess coronaries (needed if surgery planned) Grade severity Mx General MDT: GP, cardiologist, cardiothoracic surgeon, dietician, specialist nurses Optimise CV risk: statins, anti-HTN, DM, anti-plat Monitor: regular f/up and echo Specific ↓ afterload ACEi or β-B (esp. carvedilol) Diuretics Surgical: Valve Replacement Aim to replace the valve before significant LV dilation and dysfunction. Indications Symptomatic: NYHA >2 LV dysfunction Pulse pressure >100mmHg ECG changes: T inversion in lateral leads LV enlargement on CXR or EF <50% Causes Chronic Bicuspid aortic valve Rheumatic heart disease Autoimmune: Ank spond, RA Connective tissue: Marfan’s, Ehler’s Danlos Acute Infective endocarditis Type A aortic dissection © Alasdair Scott, 2012 7 Mitral Stenosis Examination Viva Peripheral Inspection Ix Middle-aged female Warfarin medic alert bracelet Malar Flush: CO → backpressure + vasoconstriction ECG P-mitrale AF Pulse Bloods: FBC, U+E, NT-proBNP, lipids, glucose Precordium CXR LA hypertrophy → splaying of carina Calcified mitral valve Pulmonary oedema AF Left parasternal heave: RVH 2O to PHT Apex: Tapping (palpable S1), non-displaced Heart sounds Loud S1 ± loud P2 (if PHT) Early diastolic opening snap Murmur Rumbling MDM Apex Left lateral position in end expiration With the Bell Radiates to the axilla Pre-systolic accentuation if pt. in sinus rhythm Atrial contraction Possible Additional Murmurs O ± Graham Steell murmur (EDM 2 to PR) Clinical Signs of Severe MR Malar flush Longer murmur LVF Significant Negatives Infective endocarditis Severity: LVF, malar flush, long murmur Evidence of PHT Malar flush ↑ JVP c̄ large V waves Left parasternal heave Loud P2 Differential AR Right-sided: PR, TS Causes Rheumatic heart disease Other causes are rare Prosthetic valve Congenital © Alasdair Scott, 2012 Echo + Doppler Severity Cusp calcification LV function Other valve function TOE: left atrial thrombus if intervention planned Echo Features of Severe MR (AHA 2006) 2 Valve orifice <1cm Pressure gradient >10mmHg Pulmonary artery systolic pressure >50mmHg Cardiac Catheterisation Assess coronaries (needed if surgery planned) Grade severity Mx General MDT: GP, cardiologist, cardiothoracic surgeon, dietician, specialist nurses Optimise CV risk: statins, anti-HTN, DM, anti-plat Monitor: regular f/up and echo Specific Consider rheumatic fever prophylaxis: e.g. Pen V AF Rate control: β-B Anticoagulate (4% stroke risk /yr) Diuretics provide symptom relief Surgical Indicated in mod–severe MS (asympto and symptomatic) Percutaneous balloon valvuloplasty Rx of choice Suitability depends on valve characteristics Pliable, minimally calcified CI if left atrial mural thrombus Surgical valvotomy / commissurotomy: valve repair Valve replacement if repair not possible 8 Rheumatic Fever Infective Endocarditis Pathophysiology Normal Valves → Acute Endocarditis Ab cross-reactivity following S. pyogenes infection → T2 hypersensitivity reaction (molecular mimicry). Abs cross-react c̄ myosin, muscle glycogen and SM cells Path: Aschoff bodies and Anitschkow myocytes. Dx: revised Jones Criteria Evidence of GAS infection plus: 2 major criteria, or 1 major + 2 minor Risk Factors IVDU Skin wounds Immunosuppression: CRF, DM Organisms S. aureus S. epidermidis Evidence of GAS infection +ve throat culture Rapid strep Ag test ↑ ASOT or DNase B titre Recent scarlet fever Cardiac Disease → Subacute Endocarditis Major Criteria Pancarditis Arthritis Subcut nodules Erythema marginatum Sydenham’s chorea Organisms S. viridans S. bovis (do colonoscopy for colonic neoplasm) HACEK → culture negative IE Ix Minor criteria Fever ↑ESR or ↑CRP Arthralgia not if arthritis is a major Prolonged PR interval not if carditis is a major Prev rheumatic fever Bloods: FBC, ESR, ASOT ECG Echo Rx Bed rest until CRP normal for 2wks Benpen 0.6-1.2mg IM for 10 days Analgesia for carditis/arthritis: aspirin / NSAIDs Add oral pred if: CCF, cardiomegaly, 3rd degree block Chorea: Haldol or diazepam Prognosis Attacks last ~ 3mo 60% c̄ carditis develop chronic rheumatic heart disease. Recurrence ppted by Further strep infection Pregnancy OCP Valve disease: regurgitation → stenosis Mitral (70%) Aortic (40%) Tricuspid (10%) Pulmonary (2%) Secondary Prophylaxis Prevent recurrence Pen V 250mg/12h PO for 5-10yrs Risk Factors Prosthetic valves Valve disease Clinical Features Hands Clubbing Splinters Janeway lesions Oslers nodes Other Fever Roth spots Splenomegaly Haematuria Cardiac New / changing murmur MR: 85% AR: 55% Dx: Duke Criteria 2 major 1 major + 3 minor All 5 minor Major 1. +ve Blood Culture Typical organism in 2 separate cultures, or Persistently +ve cultures, e.g. 3, >12h apart 2. Endocardial Involvement +ve echo: vegetation, abscess, dehiscence or New valvular regurgitation Minor 1. Predisposition: cardiac lesion, IVDU 2. Fever >38 3. Emboli: septic infarcts, splinters, Janeway lesions 4. Immune: GN, Osler nodes, Roth spots, RF 5. +ve blood culture not meeting major criteria Empiric Rx Acute severe: Fuclox / vanc + gent IV Subacute: Benpen + gent IV Prophylaxis Abx prophylaxis solely to prevent IE not recommended © Alasdair Scott, 2012 9 Valve Replacement Examination Viva Peripheral Inspection Hx General Audible valve click Anticoagulation → bruising Warfarin alert bracelet Anaemia Scars Midline sternotomy: CABG, AVR, MVR Left lat. inf. thoracotomy: MVR, mitral valvotomy Neck scars from line insertion Groin / femoral scars from angiography Vein harvesting scar on the medial leg May have had CAGB too Pulse Variable AF suggests mitral valve replacement due to MS Time prosthetic clicks c̄ pulse Occur in time = mitral valve Precordium Two Main Questions 1. When and where is the closing prosthetic sound? 2. Are there any murmurs? Starr-Edwards: 3 artificial sounds Quieter click as valve opens Loud thud as valve closes Rumbling sound as ball rolls in cage DH: warfarin dosing + interactions Look @ pts. yellow warfarin book Ix Bedside ECG Blood FBC: anaemia – MAHA, bleeding U+E: renovascular disease NT-proBNP: heart failure Fasting lipids and glucose: cardiac risk INR: warfarin Imaging CXR: heart failure Echo + Doppler Valve regurgitation or stenosis Peri-valvular leak Vegetations LV function Other valve function Discussion Valve complications Valve types Infective endocarditis Tilting disc or bileaflet: 1 artificial sound High-pitched click as valve closes Biological Valve Often normal heart sounds Aortic Lub-Click ± systolic flow murmur Abnormal: AR (EDM) Mitral Click-Dub ± diastolic flow murmur Abnormal: MR (PSM) Murmurs Well-seated valves may have soft flow murmurs Aortic: systolic Mitral: diastolic Poorly-seated valves → regurgitation Aortic: diastolic Mitral: systolic Significant Negatives Signs of infective endocarditis Signs of heart or valve failure Anaemia Bruising © Alasdair Scott, 2012 10 Valve Prostheses: Key Facts Mechanical Types Ball and cage: e.g. Starr-Edwards Tilting disc: e.g. Bjork-Shiley Bileaflet: e.g. St. Jude Features Longer life-span: ~20yrs Require oral anticoagulation: Warfarin INR 3-4 Use Bileaflet valves are most commonly used Younger pts. to minimise need for revision. Already on warfarin: e.g. AF Biological Types Porcine valves: e.g. Carpentier Edwards Bovine pericardium sewn into a metal frame Discontinued Features Less durable cf. mechanical valves: ~10yrs Don’t require long-term oral anticoagulation Take aspirin Use Older patients Women of child-bearing age Bleeding risk: e.g. peptic ulcer, frequent falls © Alasdair Scott, 2012 Indications Mainly left-sided valve dysfunction AS most commonly Factors to consider Severity of valve dysfunction Severity of heart function Co-morbidities Pt. choice Mechanical or prosthetic Age Tolerance of long-term anticoagulation E.g. pregnancy, falls Pt. choice Complications Complications of surgery Operative mortality: 5% Complications of valve Thromboembolism: 1-2% per annum despite warfarin Anaemia: warfarin and haemolysis Bleeding: minor – 7%/yr, major – 3%/yr Infective endocarditis Early: Staph. epidermidis Late: Strep. viridans nd May require 2 valve replacement Mortality: 60% NB. avoid erythromycin if on warfarin Failure Chronic: stenosis or incompetence Acute: dehiscence, breakage, thrombus 11 Atrial Fibrillation Examination Viva Peripheral Inspection Hx Symptoms: palpitations, dyspnoea, chest pain Aware of specific onset Causes Warfarin: look @ yellow book General Warfarin alert bracelet Cause ↑T4: tremor, thin, palmar erythema, sweating, eye signs MS: mitral flush ECG Confirm Dx: irregularly irregular, no P waves Cause: ischaemia, P-mitrale Pulse Irregularly irregular Bloods FBC: pneumonia, sepsis U+E: ↓K TFTs: ↓TSH, ↑fT4 Troponin D-dimer: PE Precordium MS: MDM MR: PSM Other murmurs Completion Respiratory examination: pneumonia Exercise pt. to bring out any murmur CXR Pulmonary oedema Calcified mitral valve Pneumonia Echo Valve pathology LV function TOE: left atrial thrombus Significant Negatives Ix Murmur Evidence of thyrotoxicosis LVF Bruising from warfarin Causes Common IHD Rheumatic heart disease Thyrotoxicosis Hypertension © Alasdair Scott, 2012 Other Pneumonia PE Post-op Hypokalaemia Alcohol RA 12 AF: Key Facts Clinical Points Anticoagulation Differential of Irregularly Irregular Pulse CHA2-DS2-VAS Score AF Multiple ventricular ectopics Clinical Distinction Exercise pt. AF: pulse stays irregularly irregular VE: ↑ HR → regular pulse ↓ diastole time closes window for ectopics Pulse Deficit Difference in HR @ wrist and @ apex Rapid ventricular rate → ↓ diastolic filling → ↓CO AF Control Time the apical rate: target <100 @ rest Mx Acute AF ≤48hrs Haemodynamically unstable → cardioversion Stable Rate control: diltiazem or metoprolol Start LMWH Cardiovert: DC or medical (flec or amiodarone) Determines necessity of anticoagulation in AF Dabigatran may be cost-effective alternative to warfarin CHA2-DS2 CCF HTN Age≥75 (2 points) DM Stroke or TIA (2 points) VAS Vascular disease Age: 65-74yrs Sex: female Score 0: aspirin ≥1: Warfarin (INR 2-3) Warfarin Contraindications Bleeding diathesis Compliance issues: dosing, monitoring Risk of falls PUD Pregnancy Pt. choice Paroxysmal AF Complications Bleeding Osteoporosis Persistent AF Advice Requires regular monitoring and titration of dose Avoid certain foods: e.g. grapefruit Care starting new meds Wear medic alert bracelet Come to hospital if uncontrolled bleeding Recurrent episodes lasting <7d Pill in pocket: flecainide or amiodarone Prevention: β-B or sotalol Lasting >7d Rhythm control Younger pts., treated precipitants ≥3wks anticoagulation c̄ Warfarin first or TOE to exclude mural thrombus Cardioversion: DC or medical May need maintenance anti-arrhythmic Rate control st 1 : β-B or rate-limiting CCB 2nd: add digoxin (not monotherapy) Permanent AF Failed cardioversion / unlikely to succeed Rate control Other options Radiofrequency ablation of AV node Maze procedure Pacing © Alasdair Scott, 2012 13 Pacemakers Examination Viva Peripheral Inspection Hx Groin scars from catheter insertion Medic alert bracelet Arrhythmia Syncope Palpitations Dyspnoea Cardiac arrest Type of pacemaker Pulse AF Precordium Left infraclavicular incisional scar Palpable pacemaker Large: may be implantable defibrillator ± murmur: esp. AS Significant Negatives AF LVF Valvular pathology Complications of pacemaker: infection, erosion Ix ECG Pacing spikes May be absent if pt. producing adequate intrinsic rhythm Evidence of ischaemia CXR Visualise pacemaker Count leads Thick leads suggests implantable defibrillator Echo LV function Valve pathology Structural abnormalities indicating cause Pace Makers Permanent Pacing Indications Complete AV block Mobitz Type 2 Symptomatic bradycardia: e.g. sick sinus syndrome Drug-resistant tachyarrhythmias Biventricular pacing in chronic heart failure Letters st 1 : chamber paced (A, V, D) 2nd: chamber sensed (A, V, D) 3rd: response (Inhibited, Triggered, Dual) Single Lead One lead senses and responds E.g. VVI Dual Lead Sense and respond in either chamber Biventricular Leads to both ventricles ± RA Used for cardiac resynchronisation therapy in HF Implantable defibrillator: may be incorporated into any pacemaker © Alasdair Scott, 2012 Complications Insertion Bleeding Arrhythmia Post Insertion Erosion Lead migration Pocket infection Malfunction 14 Chronic Heart Failure Definition CO is inadequate for body’s requirements despite adequate filling pressures. Left Causes 1: IHD 2: Idiopathic dilated cardiomyopathy 3: Systemic HTN 4: Mitral and aortic valve disease Symptoms Fatigue Exertional dyspnoea Orthopnoea + PND Nocturnal cough (± pink, frothy sputum) Wt. loss and muscle wasting Signs Cold peripheries ± cyanosis Often in AF Cardiomegaly c̄ displaced apex S3 + tachycardia = gallop rhythm Wheeze (cardiac asthma) Bibasal creps Right Causes LVF Cor pulmonale Tricuspid and pulmonary valve disease Symptoms Anorexia and nausea Signs ↑JVP + jugular venous distension Tender smooth hepatomegaly (may be pulsatile) Pitting oedema Ascites New York Classification 1. 2. 3. 4. No breathlessness Breathless c̄ moderate exertion Breathless c̄ mild exertion Breathless at rest Ix Bloods: FBC, U+E, NT-proBNP, lipids, glucose NT-proBNP Secreted from ventricles in response to ↑ stretch and ↑HR ↑ levels is most accurate diagnostic indicator of HF NICE recommends that heart failure is not Dx w/o ↑ BNP CXR: ABCDEF Alveolar shadowing Kerley B lines Cardiomegaly (cardiothoracic ratio >50%) Upper lobe Diversion Effusions Fluid in the fissures ECG Ischaemia Hypertrophy AF or other arrhythmia Echo: the key investigation Global systolic and diastolic function Ejection fraction normally ~60% Focal / global hypokinesia Hypertrophy Valve lesions Mx General MDT: GP, cardiologist, physio, dietician, specialist nurses Optimise CV risk: statins, anti-HTN, DM, anti-plat Monitor: regular f/up and echo Specific 1st: β-B + ACEi + loop diuretic Bisoprolol Lisinopril Frusemide 2nd: add Spironolactone 3rd: consider digoxin 4th: consider cardiac resynchronisation therapy Surgery LVAD Heart transplant Trials Showing Drug Benefit in Heart Failure © Alasdair Scott, 2012 ACEi: Consensus 1 ARB = ACEi: ELITE-2 β-B: CIBIS-2, MERIT-2 Spironolactone: RALES 15 Pulmonology Contents COPD ....................................................................................................................................................................................... 17 COPD: Key Facts..................................................................................................................................................................... 18 Asthma ..................................................................................................................................................................................... 19 Pulmonary Fibrosis .................................................................................................................................................................. 21 Bronchiectasis.......................................................................................................................................................................... 22 Bronchiectasis: Causes ........................................................................................................................................................... 23 Pleural Effusion ........................................................................................................................................................................ 24 Lung Cancer ............................................................................................................................................................................ 25 Lobectomy and Pneumonectomy ............................................................................................................................................ 25 Lung Cancer: Key Facts .......................................................................................................................................................... 26 Pneumonia ............................................................................................................................................................................... 27 Pneumonia: Key Facts ............................................................................................................................................................. 28 Old TB ...................................................................................................................................................................................... 29 © Alasdair Scott, 2012 16 COPD Examination Viva Peripheral Inspection Hx Paraphernalia Inhalers Peak flow meter Nebuliser General Airflow obstruction Pursed lip breathing Splinting diaphragm Cushingoid Cyanosed Cachetic Specific Hands Tar staining CO2 retention flap Bounding pulse Face Plethora: ↑Hb Central cyanosis Chest Barrel-shaped ↓ cricosternal distance ↓ expansion bilaterally PN: resonant Auscultation ↓ breath sounds Expiratory wheeze Prolonged expiratory phase Evidence of Hyperexpansion ↓ cricosternal distance Loss of cardiac dullness Palpable liver edge Extra Cor Pulmonale ↑ JVP Left parasternal heave: RV hypertrophy Loud P2 ± S3 MDM of tricuspid regurg Ascites and pulsatile hepatomegaly Peripheral oedema Significant Negatives CO2 retention Cor pulmonale Clubbing: could indicate Ca Differential Chronic asthma Bronchiectasis © Alasdair Scott, 2012 Symptoms: cough, sputum, dyspnoea Limitation: exercise tolerance Cause: smoking Hx, FHx Control: exacerbations, admissions Therapy: inhalers, vaccinations, home O2 Definitions Chronic bronchitis Cough productive of sputum on most days for ≥3mo on ≥2 consecutive years Emphysema Histological description of alveolar wall destruction c̄ airway collapse and air trapping Ix Bedside PEFR BMI: independent mortality RF in COPD Sputum: MC+S Spirometry: obstructive ↑ TLC and residual volume (RV) FEV1 <80% FEV1:FVC <0.7 ↓ transfer factor Bloods FBC: polycythaemia, ↑ WCC in exacerbations ABG: Type 2 resp failure CRP: if infective exacerbation Albumin: malnutrition α1-AT levels: if young and FHx Imaging CXR Acute Consolidation Pneumothorax Chronic Hyperinflation: >10 posterior ribs, flat diaphragm PHT: prominent pulmonary As, peripheral oligaemia Bullae Echo Cor pulmonale Other 6 minute walk ECG: RVH Discussion Chronic COPD Mx GOLD classification LTOT Acute exacerbation Mx Ventilation Prognosis BODE index 17 COPD: Key Facts Chronic Mx Mx of Acute Exacerbations GOLD Classification Global Initiative for Obstructive Lung Disease Multidimensional classification to tailor therapy to pt. Parameters mMRC dyspnoea score Airflow limitation No. of exacerbations per year Controlled O2 Therapy Sit-up 24% O2 via Venturi mask: SpO2 88-92%, Vary FiO2 and SpO2 target according to ABG Aim for PaO2 >8 and ↑ in PCO2 of <1.5kPa mMRC Dyspnoea Score 1. SOB only on vigorous exertion 2. SOB on hurrying or walking up stairs 3. Walks slowly or has to stop for breath 4. Stops for breath after <100m / few min 5. Too breathless to leave house or SOB on dressing Nebulised Bronchodilators Air driven c̄ nasal specs Salbutamol 5mg/4h Ipratropium 0.5mg/6h Airflow Limitation 1. Mild: FEV1 >80% (but FEV/FVC <0.7 and symptomatic) 2. Mod: FEV1 50-79% 3. Severe: FEV1 30-49% 4. Very Severe: FEV1 <30% Steroids (IV and PO) Hydrocortisone 200mg IV Prednisolone 40mg PO for 7-14d General Mx Abx If evidence of infection Doxy 200mg PO STAT then 100mg OD PO for 5d MDT GP, dietician, physio, resp physician, specialist nurses Regular review 1-2x / yr NIV if no response Repeat nebs and consider aminophylline IV Consider NIV (BiPAP) if pH<7.35 and/or RR >30 Consider invasive ventilation if pH<7.26 Depends on pre-morbid state: exercise capacity, home O2, comorbidity Smoking Cessation: single most important intervention Specialist nurse and support programme Nicotine replacement therapy Varenicline: partial nicotinic agonist Pulmonary Rehabilitation Therapy Tailored exercise programme Disease education Psychosocial support Co-morbidities Nutritional assessment and dietary support CV risk Mx Vaccination: pneumococcal and seasonal influenza Medical Mx Principal Therapies Anti-muscarinics: short- or long-acting β-agonists: short- or long-acting Inhaled corticosteroids: in combination c̄ β-B Other Therapies Theophylline or Roflumilast: PDIs Carbocisteine: mucolytic Home emergency pack for acute exacerbations LTOT Aim: PaO2 ≥8 for ≥15h / day (↑ survival by 50%) Indications Sable non-smokers c̄ PaO2 <7.3 PaO2 <8 + cor pulmonale or polycythaemia Surgical Mx Recurrent pneumathoraces or large bullae Bullectomy or lung reduction surgery © Alasdair Scott, 2012 Ix PEFR Bloods: FBC, U+E, ABG, CRP, cultures Sputum culture CXR: infection, pneumothorax Discharge Spirometry Establish optimal maintenance therapy GP and specialist f/up Prevention using home oral steroids and Abx Pneumococcal and Flu vaccine Home assessment BODE Index Multidimensional tool to predict mortality in COPD Uses multiple independent risk factors BMI Obstruction: FEV1 Dyspnoea: MRC score Exercise capacity: 6 min walk Mortality 15% in-hospital mortality 18 Asthma Examination Viva Peripheral Inspection Hx Symptoms: cough, dyspnoea, wheeze, diurnal variation Limitations: exercise, sleep, work Cause: atopy, exercise, cold, smoking Control: SABA use, attacks, admissions, ITU Check peak flow diary Therapy: oral steroid use, check inhaler technique Assocs. GORD: dyspepsia Churg-Strauss: recent onset, rash, neuropathy Paraphernalia Inhalers Peak flow meter Nebuliser General Cushingoid Specific Oral thrush Definition Episodic, reversible airway obstruction due to bronchial hyper-reactivity to a variety of stimuli. Chest Harrison sulcus Auscultation Usually normal May be ↓ AE and mild wheeze Significant Negatives CO2 retention Cor pulmonale Clubbing: could indicate Ca Differential Normal Pulmonary oedema: cardiac asthma COPD Ix Bedside PEFR Bloods FBC (eosinophila) ↑IgE Aspergillus serology CXR: hyperinflation Spirometry: obstructive ↓ FEV1, ↑RV FEV1:FVC < 0.75 ≥15% improvement in FEV1 c̄ β-agonist PEFR monitoring / diary Diurnal variation >20% Morning dipping Atopy: skin-prick testing, RAST Mx General MDT: GP, specialist nurses, respiratory physician Technique for inhaler use Avoidance: allergens, smoke (ing), dust Monitor: Peak flow diary (2-4x/d) Educate Liaise c̄ specialist nurse Need for Rx compliance Emergency action plan Medical: 5-stage BTS Guidelines Well Controlled No exacerbations No reliever therapy: no PRN salbutamol No night time waking <20% diurnal variation Normal lung function © Alasdair Scott, 2012 19 Acute Severe Asthma Presentation Mx Acute breathlessness and wheeze Hx Ix Precipitant: infection, travel, exercise? Usual and recent Rx? Previous attacks and severity: ICU? Best PEFR? PEFR ABG PaO2 usually normal or slightly ↓ PaCO2 ↓ If PaCO2 ↑: send to ITU for ventilation FBC, U+E, CRP, blood cultures Assessment Severe PEFR <50% Can’t complete sentence in one breath RR >25 HR >110 Life Threatening PEFR <33% SpO2 <92%, PCO2 >4.6kPa, PaO2 <8kPa Cyanosis Hypotension Exhaustion, confusion Silent chest, poor respiratory effort Tachy-/brady-/arrhythmias Differential Pneumothorax Acute exacerbation of COPD Pulmonary oedema Admission Criteria Life-threatening attack Feature of severe attack persisting despite initial Rx May discharge if PEFR > 75% 1h after initial Rx 1. 2. 3. 4. 5. O2, Nebs and Steroids Sit-up 100% O2 via non-rebreathe mask (aim for 94-98%) Nebulised salbutamol (5mg) and ipratropium (0.5mg) Hydrocortisone 100mg IV or pred 50mg PO (or both) Write “no sedation” on drug chart If Life Threatening Inform ITU MgSO4 2g IVI over 20min Nebulised salbutamol every 15min (monitor ECG) If Improving Monitor: SpO2 @ 92-94%, PEFR Continue pred 50mg OD for 5 days Nebulised salbutamol every 4hrs IV Rx if No Improvement in 15-30min: Nebulised salbutamol every 15min (monitor ECG) Continue ipratropium 0.5mg 4-6hrly MgSO4 2g IVI over 20min Salbutamol IVI 3-20ug/min Consider aminophylline Load: 5mg/kg IVI over 20min Unless already on theophylline Continue: 0.5mg/kg/hr Monitor levels ITU transfer for invasive ventilation Monitoring PEFR every 15-30min Pre- and post-β agonist SpO2: keep >92% ABG if initial PaCO2 normal or ↑ Discharge When Been stable on discharge meds for 24h PEFR >75% c̄ diurnal variability <20% Discharge Plan TAME pt. PO steroids for 5d GP appointment w/i 1 wk. Resp clinic appointment w/i 1mo © Alasdair Scott, 2012 20 Pulmonary Fibrosis Examination Viva Peripheral Inspection Hx General Clubbing Cushingoid No sputum Tachypnoea, central cyanosis Evidence of Specific Cause RA: rheumatoid hands, nodules SS Sclerodactyly, calcinosis Microstomia, beak nose, telangiectasia SLE: malar rash AS: kyphosis Sarcoidosis: EN Radiation: tattoos on chest Chest ± thoracotomy scar: single lung Tx Tracheal shift towards fibrosis: upper lobe Fine end-inspiratory crackles No change c̄ coughing Extras Cor pulmonale Significant Negatives Cyanosis Cor pulmonale Specific cause: e.g. RA hands or sclerodactyly Differential Bronchiectasis Chronic lung abscess HPC: dyspnoea, cough, sputum, wt. loss Cause: arthritis, radiation, occupation, hobbies DH Smoking status Ix Bedside PEFR ECG: RVH Blood FBC: anaemia exacerbates dyspnoea ABG: ↓PaO2, ↑PaCO2 IPF: ↑ESR, ↑CRP, ANA (30%), RF (10%), ↑Ig EAA: +ve se precipitins CTD: C3/C4, CCP (RF, ANA), scl-70, centromere Sarcoid: se ACE, Ca2+ Imaging CXR: reticulonodular shadowing, ↓ lung volume HRCT: fibrosis, Honeycomb Lung Spirometry: restrictive ↓TLC¸ ↓RV, ↓FEV and ↓FVC FEV1:FVC >0.8 ↓ transfer factor Other Echo: PHT BAL: may indicate disease activity ↑ lymphocytes > PMN: better prognosis Lung biopsy: usual interstitial pneumonia Mx Causes Upper Aspergillosis : ABPA Pneumoconiosis: Coal, Silica Extrinsic allergic alveolitis Negative, sero-arthropathy TB Lower Sarcoidosis (mid zone) Toxins: BANS ME Asbestosis Idiopathic pulmonary fibrosis Rheum: RA, SLE, SS, Sjogren’s, PM/DM Drugs: BANS ME Bleomycin, Busulfan Amiodarone Nitrofurantoin Sulfasalazine MEthotrexate MDT: GP, pulmonologist, physio, psych, palliative care, specialist nurses, pts. family Rx specific cause EAA: steroids Sarcoidosis: steroids Connective tissue disease: steroids Supportive care Stop smoking: single most beneficial strategy Pulmonary rehabilitation LTOT Symptomatic Rx Anti-tussives: e.g. codeine phosphate Heart failure: diuretics, β-B, ACEi Surgery: lung Tx offers only cure for IPF Prognosis IPF: 50% 5yr survival Panther Study Pred + AZA + NAC → ↑ mortality: trial arm stopped NAC alone: trial arm still running © Alasdair Scott, 2012 21 Bronchiectasis Examination Viva Peripheral Inspection Hx General Clubbing Sputum pot Small and young: CF Cachexia LNs Tachypnoea Ix Evidence of Specific Cause RA: rheumatoid hands Yellow nails CF: young pt., nasal polyps Hypogammaglobulinaemia: splenomegaly IBD: abdominal scars Chest ± thoracotomy scar Portacath or Hickman line / scars: CF Coarse, wet crackles May change with cough Localised / patchy: 2O to infection Widespread: 2O to systemic disease ± monophonic wheeze Dextrocardia Extras Cor pulmonale Completion Examine the nose for polyps Examine the abdomen for scars and splenomegaly Significant Negatives Cor pulmonale Specific cause: e.g. RA hands Differential Idiopathic pulmonary fibrosis Chronic lung abscess Causes Congenital CF PCD / Kartagener’s Young’s: azoospermia + bronchiectasis Hypogammaglobulinaemia: XLA, CVID, SAD Acquired Idiopathic Post-infectious: pertussis, TB, measles Obstruction: tumour, foreign body Associated: RA, IBD (esp. UC), ABPA HPC: dyspnoea, cough, sputum, haemoptysis, wt. loss Cause: recurrent infections, arthritis, diarrhoea Smoking status Bedside PEFR Dipstick: proteinuria – amyloidosis Sputum: MC+S, cytology Blood FBC: ACD Serum Ig: may do provocative testing Aspergillus: RAST, precipitins, ↑IgE, eosinophilia RA: anti-CCP, RF, ANA Imaging CXR: tramlines and ring shadows (bunch of grapes) HRCT Signet ring sign: thickened dilated bronchi + smaller adjacent vascular bundle Pools of mucus in saccular dilatations Spirometry Obstructive Other Bronchoscopy + mucosal biopsy Focal obstruction PCD CF sweat test Aspergillus skin prick testing Complications Cachexia Pulmonary HTN Massive haemoptysis Type 2 respiratory failure Amyloidosis Mx Conservative MDT: GP, pulmonologist, physio, dietician, immunologist Physio: postural drainage, active cycle breathing, rehab Medical Abx Exacerbations: e.g. cipro for 7-10d May use prophylactic azithromycin Bronchodilators: nebulised β agonists Treat underlying cause CF: DNAase, pancreatin (Creon), ADEK vitamins ABPA: Steroids Immune deficiency: IVIg Vaccination: flu, pneumococcus Surgical May be indicated in severe localised disease or obstruction © Alasdair Scott, 2012 22 Bronchiectasis: Causes Cystic Fibrosis PCD and Kartagener’s Autosomal recessive defect in ciliary motility Poor mucociliary clearance → chronic recurrent inflammation and bronchiectasis. ↓ sperm motility in males → infertility Genetics Incidence: 1/2500 live Caucasian births Carrier frequency: 1/25 Autosomal recessive Mutation in CFTR gene on Chr 7 Commonly ∆F508 Kartagener’s Syndrome Situs inversus + PCD (~50% of individuals c̄ PCD) Situs inversus Chronic sinusitis Bonchiectasis Pathophysiology → ↓ luminal Cl secretion and ↑ Na reabsorption → viscous secretions. Bronchioles → bronchiectasis Pancreatic ducts → DM, malabsorption GIT → Distal Intestinal Obstruction Syndrome Liver → gallstones, cirrhosis Fallopian tubes → ↓ female fertility Seminal vesicles → male infertility Young’s Syndrome Bronchiectasis Rhinosinusitis Azoospermia (no sperm in semen) → ↓ fertility Hypogammaglobulinaemia Primary immune deficiency due to ↓ Ig Dx Genetic screening for common mutations Immunoreactive trypsinogen (neonatal screening) Sweat test: Na and Cl > 60mM False +ve: hypothyroidism, Addison’s Faecal elastase: tests pancreatic exocrine function Ix Presentation Recurrent sinopulmonary infections → bronchiectasis Diarrhoea Commonly encapsulates: pneumococcus, haemophilus Causes Bloods: FBC, LFTs, clotting, ADEK levels, glucose tolerance test Sputum MC+S CXR: diffuse tramlines and rings Abdo US: fatty liver, cirrhosis, pancreatitis Spirometry: obstructive defect Aspergillus serology / skin test (20% develop ABPA) X-linked Agammablobulinaemia: Bruton’s X-linked recessive mutation of Bruton’s tyrosine kinase Failure to generate mature B cells → ↓ Ig Rx: pooled Ig → passive immunity Mx Common Variable Immunodeficiency Commonest 1O immune deficiency: 1/5000 Splenomegaly: 25-50% Normal IgM, ↓IgG, ↓IgA MDT: GP, gastro and resp physicians, physio, dietician, specialist nurse Specific Antibody Deficiency: SAD Normal Ig levels but inability to make specific antibodies Chest Physio: postural drainage, active cycle breathing Abx: acute infections and prophylaxis Mucloytics: DNAse Segregate from other CF pts.: risk of transmission Pseudomonas Burkholderia Vaccination: flu, pneumococcus Advanced: heart-lung transplant Yellow Nail Syndrome GI Pancreatic enzyme replacement: pancreatin (Creon) ADEK supplements Insulin Other Rx of complications: e.g. DM Fertility and genetic counselling DEXA osteoporosis screen Prognosis Mean survival 35yrs but rising Poorer prognosis if infected c̄ Burkholderia cepacia © Alasdair Scott, 2012 Very rare Yellow dystrophic nails Pleural effusions Lymphoedema: lymphatic hypoplasia Bronchiectasis Allergic Bronchopulmonary Aspergillosis T1 and T3 HS reaction to Aspergillus fumigatus Bronchoconstriction → bronchiectasis Presentation Dyspnoea, wheeze Productive cough Bronchiectasis Ix ↑IgE and eosinophilia +ve skin prick test or RAST Rx Prednisolone + bronchodilators 23 Pleural Effusion Examination Viva Peripheral Inspection Hx Symptoms: SOB, pleurisy Cause Fever, sputum Smoking, wt. loss, haemoptysis Previous MI, orthopnoea, PND Hepatitis Paraphernalia Chest drain Evidence of Specific Cause Cancer: clubbing, cachexia, LNs Pneumonia: febrile CCF: ↑JVP, S3, ascites, ankle oedema CLD: clubbing, leukonychia, spiders, gynaecomastia CTD: rheumatoid hands, malar rash Chest Tracheal shift: away from lesion ↓ expansion unilaterally PN: stony dull Auscultation ↓ AE ↓ VR Significant Negatives Absence of Fever Clubbing ↑ JVP and peripheral oedema Features of CTD Differential of Dull Lung Base Consolidation: bronchial breathing + crackles Collapse: ↑ VR Causes Transudate Modified Starling’s Forces Protein <25 Usually bilateral Causes - CCF - Renal failure - ↓ albumin - Hypothyroidism - Meig’s syn. Exudate ↑ Capillary Permeability Protein >35 Often unilateral Causes - Infection: pneumonia, TB - Ca: 1O or 2O - Inflammation: RA, SLE - Infarction: PE - Trauma Ix Sputum: MC+S, cytology Imaging CXR Dependent homogenous opacification c̄ meniscus Unilateral or bilateral Cardiomegaly Coin lesions Hilar LNs Apical TB US: may guide pleurocentesis Volumetric CT Blood FBC: ↓Hb U+E: ↑ Cr LFTs: ↓ albumin TFT: ↑TSH ESR: ↑ in CTD Ca: ↑ in Ca Diagnostic Pleurocentesis Percuss upper boarder and go 1-2 spaces below Infiltrate down to pleura c̄ lignocaine + aspirate c̄ 21G needle Send for Chemistry: protein, LDH, pH, glucose, amylase Bacteriology: MCS, auramine stain, TB culture Cytology Immunology: RF, ANA, complement Light’s Criteria for Dx of an Exudative Effusion Effusion : serum protein ratio >0.5 Effusion : serum LDH ratio >0.6 Effusion LDH is 0.6 x ULN Empyema: turbid fluid, ↓ glucose and pH <7.2 Pleural Biopsy If pleural fluid is inconclusive CT-guided c̄ Abrams needle Mx Rx underlying cause May use drainage if symptomatic (≤2L/24h) Repeated aspiration or ICD Pleurodesis c̄ talc if recurrent malignant effusion Persistent effusions may require surgery © Alasdair Scott, 2012 24 Lung Cancer Lobectomy and Pneumonectomy Peripheral Inspection Examination General Cachexia Hoarse voice or stridor Peripheral Inspection Hands Clubbing ± HPOA Tar staining Claw hand c̄ wasting of interossei Chest Face Anaemia Horner’s Plethora Neck LNs: check axilla too Dilated veins Chest Thoracotomy scar Radiotherapy square burn + tattoo Acanthosis nigricans Collapse Tracheal deviation towards lesion ↓ expansion PN: dull Auscultation ↓ or absent AE ± crackles ↑ VR Effusion Tracheal deviation away ↓ expansion PN: stony dull Auscultation: ↓ AE ↓ VR Extras Hepatomegaly or spinal tenderness Complications SVCO Plethoric, oedematous face and upper limbs Dilated neck and chest veins Stridor RLNP: hoarse voice c̄ bovine cough Pancoast Tumour Horner’s Claw hand c̄ interossei wasting Dermatomyositis Clubbing Cachexia Scars Lateral thoracotomy Clamshell: double lung Tx Chest drains Chest wall asymmetry / deformity Pneumonectomy Tracheal + apex shift - To abnormal side Throughout abnormal side - ↓ expansion - Dull percussion - NO breath sounds Lobectomy Tracheal shift - Mainly upper lobectomy - To abnormal side Focal signs - ↓ expansion - Dull percussion - Reduced breath sounds Completion History to establish cause CXR Viva Differential Lobectomy / pneumonectomy Scar but normal lung Thoracotomy: abscess, empyema, biopsy, wedge Transplant: ? other lung normal Indications for Lobectomy / Pneumonectomy 90% for non-disseminated bronchial carcinoma Other Bronchiectasis COPD: lung-reduction surgery TB: historic, upper lobe Operative Mortality Lobectomy: 7% Pneumonectomy: 12% ↑ risk c̄ ↑ ASA grade Age >70 Poor resp function FEV1:FVC <55% Discussion Lung Ca TB Differential Consolidation Collapse Effusion © Alasdair Scott, 2012 25 Lung Cancer: Key Facts Epidemiology Ix Pathology 1. Bloods FBC: anaemia, ↑WCC if consolidation U+E: ↓ Na (SIADH or Addison’s) LFTs: deranged LFTs 2O to liver mets Bone profile: ↑ Ca2+ (bone mets, ↑PTHrP) 3rd commonest malignancy in men and women Commonest cause of cancer death Non-Small Cell Lung Cancer SCC: 35% Highly related to smoking Centrally located PTHrP → ↑ Ca2+ Adenocarcinoma: 25% RF: female non-smokers Peripherally located 80% present c̄ extrathoracic mets Large-cell: 10% Small Cell Lung Cancer: 20% Highly related to smoking Central location 80% present c̄ advanced disease Ectopic hormone secretion Hx Symptoms Cough + haemoptysis Dyspnoea Chest pain Anorexia and wt. loss Smoking Occupational expose Complications Local Recurrent laryngeal N. palsy Phrenic N. palsy SVCO Horner’s (Pancoast’s tumour) AF Paraneoplastic Endo + ADH → SIADH (euvolaemic ↓Na ) ACTH → Cushing’s syndrome Serotonin → carcinoid (flushing, diarrhoea) PTHrP → 1O HPT (↑Ca2+, bone pain) – SCC Rheum Dermatomyositis / polymyositis Neuro Cerebellar degeneration Peripheral neuropathy Derm Acanthosis nigricans Trousseau syndrome: thrombophlebitis migrans Metastatic Pathological # Hepatic failure Confusion, fits, focal neuro Addison’s © Alasdair Scott, 2012 2. Dx of Mass CXR Coin lesions Effusion Consolidation or collapse Hilar LNs Bony mets Contrast-enhanced volumetric CT thorax 3. Determine Cell Type Cytology Induced sputum US-guided pleurocentesis Histology Percutaneous FNA: adenocarcinoma Endoscopic transbronchial biopsy: SCC 4. Staging CT: neck, thorax, upper abdo ± brain PET Radionucleotide bone scan Thoracoscopy, mediastinoscopy + LN sampling 5. Pulmonary Function Tests Assess fitness for surgery Pneumonectomy CI if FEV1 <1.2L Mx General MDT Stop smoking Optimise nutrition and CV function NSCLC Surgery Rx of choice if no metastatic spread Stage 1/2:~25% Wedge resection, lobectomy, pneumonectomy Curative Radio: if poor cardiorespiratory function Chemo: platinum-based + biologics SCLC Usually disseminated @ presentation Some benefit c̄ chemo Palliative Care Analgesia: opiates for pain and cough Radiotherapy: haemoptysis, bone or CNS mets SVCO: dex + radio or intravascular stent Persistent effusions: chemical pleurodesis Prognosis NSCLC: 50% 5ys w/o spread; 10% c̄ spread SCLC: 1-1.5yrs median survival treated; 3mo untreated 26 Pneumonia Examination Viva Peripheral Inspection Hx Symptoms Fever, rigors, anorexia, malaise Cough + sputum ± haemoptysis Pleurisy Smoking Travel and contacts Immunosuppression: HIV, steroids Ill looking Febrile ↑RR, ↑HR, AF Cough Rusty sputum Chest: Consolidation ↓ expansion PN: dull Auscultation Bronchial breathing ↓ AE Focal coarse crackles Pleural rub ↑VR Extras Para-pneumonic effusion Erythema multiforme: mycoplasma Differential Collapse Effusion Ix Bedside Sputum MC+S, cytology Urine Pneumococcal Ag Hb: cold agglutinins → haemolysis Bloods FBC: ↑ WCC U+E: dehydration, ↓Na CRP: trend LFT: ↑LFTs in mycoplasma, Legionella Culture: 25% positive Paired Sera: Mycoplasma, Chlamydia, Legionella ABG CXR Consolidation c̄ air bronchogram Effusion Cavities: esp. S. aureus Other Pleurocentesis BAL Mx Assess severity and Mx accordingly Specific Abx Analgesia Supportive Oxygen Fluids Chest physio Complications Septic shock + MOF: ITU Para-pneumonic effusion or empyema: drainage Respiratory failure: ventilation Abscess: drainage f/up CXR @ 6 wks Check for underlying Ca and resolution Smoking cessation Pneumovax (23 valent) ≥65yrs Chronic HLRP failure or conditions Immunosupp: DM, hyposplenism, chemo, HIV Re-vaccinate every 6yrs © Alasdair Scott, 2012 27 Pneumonia: Key Facts Epidemiology Incidence: 1/100 Mortality: 10% in hospital, 30% in ITU Anatomic Classification Bronchopneumonia Patchy consolidation of different lobes Lobar Pneumonia Fibrosuppurative consolidation of a single lobe Congestion → red → grey → resolution Severity: CURB-65 (only if x-ray changes) Confusion (AMT ≤8) Urea >7mM Resp. rate >30/min BP <90/60 ≥65 Score 0-1 → home Rx 2 → hospital Rx ≥ 3 → consider ITU Other Markers of Severity WCC: <4 or >12 Temp: >38 or <32 PaO2: <8KPa AF Multiple lobar involvement Complications Septic shock and MOF Para-pneumonic effusion / empyema Abscess: S. aureus, Klebsiella, anaerobes Respiratory failure SIRS Aetiological Classification Community Acquired Pneumonia Commonest organisms Pneumococcus: 50% Mycoplasma: 6% Haemophilus: esp. if COPD Chlamydia pneumonia Viruses: 15% Other organisms S. aureus Moraxella Legionella Rx: amoxicillin + clarithromycin Hospital Acquired Pneumonia >48hrs after hospital admission Common organisms Pseudomonas MRSA Gm-ve enterobacteria Rx: co-amoxiclav or tazocin ± vanc Inflam response to a variety of insults manifest by ≥ 2 of: Temperature: >38°C or <36°C Heart rate: >90 Respiratory rate: >20 or PaCO2 <4.6 KPa WCC: >12x109/L or <4 x109/L or >10% bands Sepsis SIRS caused by infection Severe Sepsis Sepsis c̄ at least 1 organ dysfunction or hypoperfusion Septic Shock Severe sepsis with refractory hypotension MODS Impairment of ≥2 organ systems Homeostasis cannot be maintained without therapeutic intervention. Aspiration ↑ Risk: stroke, bulbar palsy, ↓GCS, GORD, achalasia Typically posterior segment of RLL Orgnaisms: anaerobes Rx: co-amoxiclav Immunocompromised PCP: co-trimoxazole TB: RIPE Fungi: amphotercin CMV/HSV: ganciclovir Atypical Pneumonia Refers to organisms which cause atypical generalised symptoms and bronchopneumonia Fever, headaches, myalgia Poor correlation between clinical and x-ray findings Often intracellular: mycoplasma, Chlamydia, Legionella © Alasdair Scott, 2012 28 Old TB Examination TB: Key Facts Chest Pathophysiology Inspection Asymmetry: absent ribs Scars Thoracoplasty Supraclavicular fossa: phrenic nerve crush Primary TB Childhood or naïve TB infection Organism multiplies @ pleural surface → Ghon Focus Macros take TB to LNs Nodes + lung lesion = Ghon complex Mostly asympto: may → fever and effusion Cell mediated immunity / DTH controls infection in 95% Fibrosis of Ghon complex → calcified nodule (Ranke complex) O Rarely may → 1 progressive TB (immunocomp) Palpation Tracheal deviation towards apical fibrosis ↓ expansion PN: dull Auscultation ± bronchial breathing ↓ AE Crackles ↑VR Viva Past Mx of TB It was believed that lower PAO2 would inhibit TB proliferation. inducing apical collapse was a treatment Techniques Plombage: insertion of polystyrene balls into thoracic cavity Phrenic nerve crush: diaphragm paralysis Thoracoplasty: rib removal to collapse lung Apical lobectomy Complications of Old TB Aspergilloma in old TB cavity Bronchiectasis LN compression of large airways Traction from fibrosis Scarring predisposed to bronchial Ca Current Mx of TB Initial Phase (RHZE): 2mos RMP: hepatitis, orange urine, enzyme induction INH: peripheral sensory neuropathy, ↓PMN PZA: hepatitis, arthralgia (CI: gout, porphyria) EMB: optic neuritis → loss of colour vision first Continuation Phase (RH): 4mos RMP INH Primary Progressive TB Resembles acute bacterial pneumonia Mid and lower zone consolidation, effusions, hilar LNs Lymphohaematogenous spread → extra-pulmonary and milliary TB Latent TB Infected but no clinical or x-ray signs of active TB Non-infectious May persist for years Weakened host resistance → reactivation Secondary TB Usually reactivation of latent TB due to ↓ host immunity May be due to reinfection Typically develops in the upper lobes Hypersensitivity → tissue destruction → cavitation and formation of caseating granulomas. Dx Latent TB Tuberculin Skin Test If +ve → IGRA Active TB CXR Mainly upper lobes. Consolidation, cavitation, fibrosis, calcification If suggestive CXR take ≥3 sputum samples (one AM) May use BAL if can’t induce sputum Microscopy for AFB: Ziehl-Neelsen stain Culture: Lowenstein-Jensen media (Gold stand) PCR Can Dx rifampicin resistance May be used for sterile specimens Tuberculin Skin Test Intradermal injection of purified protein derivative Induration measured @ 48-72h False +ve: BCG, other mycobacteria, prev exposure False –ve: HIV, sarcoid, lymphoma Interferon Gamma Release Assays (IGRAs) Pt. lymphocytes incubated c̄ M. tb specific antigens → IFN-γ production if previous exposure. Will not be positive if just BCG (uses M. bovis) E.g. Quantiferon Gold and T-spot-TB © Alasdair Scott, 2012 29 The Medical Abdomen Contents Chronic Liver Disease .............................................................................................................................................................. 31 CLD: Key Facts ........................................................................................................................................................................ 32 Ascites ..................................................................................................................................................................................... 33 Medical Jaundice ..................................................................................................................................................................... 34 Liver Transplant ....................................................................................................................................................................... 35 Hepatomegaly .......................................................................................................................................................................... 36 Splenomegaly .......................................................................................................................................................................... 37 Myloproliferative Disorders ...................................................................................................................................................... 38 Spleen and Splenectomy ......................................................................................................................................................... 38 Enlarged Kidneys ..................................................................................................................................................................... 39 Cystic Renal Disease ............................................................................................................................................................... 40 RCC / Hypernephroma ............................................................................................................................................................ 40 Renal Transplant...................................................................................................................................................................... 41 Renal Transplant: Key Facts ................................................................................................................................................... 42 Renal Replacement Therapy ................................................................................................................................................... 43 Renal Access ........................................................................................................................................................................... 44 CRF: Key Facts........................................................................................................................................................................ 45 CRF: Specific Causes .............................................................................................................................................................. 46 Inflammatory Bowel Disease ................................................................................................................................................... 47 IBD: Key Facts for Medicine .................................................................................................................................................... 48 © Alasdair Scott, 2012 30 Chronic Liver Disease Examination Viva Peripheral Inspection Hx General Jaundice Ascites Cachexia Tattoos and track marks Pigmentation Hands Clubbing (esp. in PBC) Leukonychia Terry’s nails (white proximally, red distally) Palmer erythema Dupuytren’s contracture Face Pallor: ACD Xanthelasma: PBC Keiser-Fleischer rings Parotid enlargement (esp. c̄ EtOH) Trunk Spider naevi Gynaecomastia O Loss of 2 sexual hair Ankles Peripheral oedema Abdomen Inspection Distension ± Para- / umbilical hernia Dilated veins Drain scars Palpation ± hepatomegaly ± splenomegaly Shifting dullness Significant Negatives Evidence of decompensation Jaundice Encephalopathy: asterixis, confusion Foetor hepaticus: ammonia and ketones Hypoalbuminaemia: oedema and ascites Coagulopathy: bruising Evidence of SBP: esp. if ascites Cause: xanthelasma, pigmentation, KF rings, tattoos CLD Differential Common EtOH Viral NASH Rarer Genetic: HH AI: AH Drugs: methotrexate © Alasdair Scott, 2012 Cause EtOH Sexual Hx, IVDU, transfusions FH Other AI disease: e.g. DM, thyroid DH Ix Initial Workup Urine: dip ± MC+S (? UTI) Bloods: FBC, U+E, LFTs, INR, glucose Ascitic tap: chemistry, cytology, MC+S, SAAG PMN >250mm3 indicates SBP US + PV duplex Liver size and texture Focal lesions Ascites Portal vein flow Liver Screen EtOH: MCV, GGT, AST:ALT >2 Viral: Hep B and C serology NASH: lipids AutoAbs: SMA, AMA, pANCA, ANA Ig: ↑IgG – AIH, ↑IgM – PBC Genetic: caeruloplasmin, Ferritin, α1-AT Ca: AFP, Ca 19-9 Other Liver biopsy MRCP: PSC Rx General MDT: GP, hepatologist, dietician, palliative care, family EtOH abstinence Good nutrition Cholestyramine for pruritus Screening HCC: US + AFP Varices: OGD Specific HCV: interferon-α + ribavarin PBC: ursodeoxycholic acid Wilson’s: penicillamine HH: venesection, desferrioxamine Complications Varices: β-B, banding Ascites: fluid and salt restrict, spiro, fruse, tap, daily wt Coagulopathy: Vit K, FFP, platelets Encephalopathy: avoid sedatives, lactulose, rifaximin Sepsis / SBP: tazocin or cefotaxime Avoid gent: nephrotoxicity Hypoglycaemia: dextrose Hepatorenal syndrome: IV albumin + terlipressin 31 CLD: Key Facts Causes Common Chronic EtOH Chronic HCV (and HBV) NAFLD / NASH Other Congenital: HH, Wilson’s, α1ATD, CF AI: AH, PBC, PSC Drugs: Methotrexate, amiodarone, isoniazid Neoplasm: HCC, mets Vasc: Budd-Chiari, RHF, constrict. pericarditis Complications 1. 2. 3. 4. Liver failure / decompensation SBP Portal HTN: SAVE HCC Child-Pugh Grading of Cirrhosis Evaluates prognosis in Cirrhosis Graded A-C using severity of 5 factors Albumin Bilirubin Clotting Distension: ascites Encephalopathy Score A: 5-6 B: 7-9 C: 10-15 1yr Mortality 0 20 50 Tx Mortality 10 30 80 Decompensation Precipitants → HEPATICS Haemorrhage: e.g. varices Electrolytes: ↓K, ↓Na Poisons: diuretics, sedatives, anaesthetics Alcohol Tumour: HCC Infection: SBP, pneumonia, UTI, HDV Constipation (commonest cause) Sugar (glucose) ↓: e.g. low calorie diet General Mx HDU or ITU Rx any precipitant Good nutrition: e.g. via NGT c̄ high carbs Thiamine supplements Prophylactic PPIs vs. stress ulcers Monitoring Fluids: urinary and central venous catheters Bloods: daily FBC, U+E, LFT, INR Glucose: 1-4hrly + 10% dextrose IV 1L/12h Mx Complications Ascites: daily wt, fluid and Na restrict, diuretics, tap Coagulopathy: Vit K, FFP, platelets Encephalopathy: avoid sedatives, lactulose, rifaximin Sepsis / SBP: tazocin or cefotaxime Hypoglycaemia: dextrose Hepatorenal syndrome: IV albumin + terlipressin © Alasdair Scott, 2012 Encephalopathy Pathophysiology ↓ hepatic metabolic function Diversion of toxins from liver directly into systemic system. Ammonia accumulates and pass to brain where astrocytes clear it causing glutamate → glutamine ↑ glutamine → osmotic imbalance → cerebral oedema. Presentation Asterixis, Ataxia Confusion Dysarthria Constructional apraxia Seizures Ix: ↑ plasma NH4 Rx Nurse in well lit, calm environment Correct any precipitants Avoid sedatives Lactulose ↓ nitrogen-forming bowel bacteria 2-4 soft stools/d Rifaximin PO: kill intestinal microflora Hepatorenal Syndrome Renal failure in pts. c̄ advanced CLF Pathophysiology: “Underfill theory” Cirrhosis → splanchnic arterial vasodilatation → effective circulatory volume → RAS activation → renal arterial vasoconstriction. Persistent underfilling of renal circulation → failure Classification Type 1: rapidly progressive deterioration (survival <2wks) Type 2: steady deterioration (survival ~6mo) Rx IV albumin + terlipressin Haemodialysis as supportive Rx Liver Tx is Rx of choice SBP Presentation Pt. c̄ ascites and peritonitic abdomen Complicated by hepatorenal syn. in 30% Common organisms: E. coli, Klebsiella, Streps Ix: ascites PMN >250mm3 + MC+S Rx: Tazocin or cefotaxime until sensitivities known Prophylaxis: high recurrence cipro long-term Poor Prognosis Worsening encephalopathy ↑ age ↓ albumin ↑ INR 32 Ascites Examination Viva Peripheral Inspection Hx Cause Signs of CLD CCF: ↑ JVP, bibasal creps, peripheral oedema Nephrotic: periorbital oedema Budd Chiari: abdo pain, hepatomegaly, jaundice Ix Abdomen Shifting dullness Portal HTN: splenomegaly Completion CVS and Resp for CCF Urine dip: proteinuria in nephrotic syndrome Significant Negatives CLD Acute liver failure / decompensation Cause: ↑ JVP, periorbital oedema Causes of Ascites Commonest Cirrhosis CCF Carcinomatosis Serum Ascites Albumin Gradient SAAG = Se albumin – Ascites Albumin SAAG ≥1.1g/dL = Portal HTN (97% accuracy) Cirrhosis in 80% SAAG <1.1g/dL Neoplasia: e.g. peritoneal mets or ovarian Ca Inflammation: pancreatitis Nephrotic syndrome Infection: TB peritonitis Portal HTN Portal pressure >10mmHg (norm 5-10) 80% cirrhosis in UK Pre-hepatic Portal vein thrombosis PV, ET PNH Nephrotic syndrome Hepatic Cirrhosis Post-hepatic Cardiac: RHF, TR, constrictive pericarditis Budd-Chiari (hepatic vein thrombosis) © Alasdair Scott, 2012 SBP: fever, abdo pain Cause Liver disease Cardiac failure, MI Bedside Urine: dip ± MC+S Exclude nephrotic syn. ? UTI Bloods FBC U+E LFTs: esp. albumin INR Glucose Liver screen Ascitic tap Chemistry 3 Cytology: malignancy, PMN (>250/mm = SBP) Bacteriology: MC+S, Ziehl-Neelson Stain SAAG US + PV duplex Liver size and texture Focal lesions Ascites Portal vein flow Rx General EtOH abstinence Daily wts: aim for ≤0.5kg/d reduction Fluid restrict: <1.5L/d Low Na diet: 40-100mmol/d Diuretics Spironolactone Add frusemide if response poor Therapeutic Paracentesis Temporary insertion of pig-tail drain or Bonnano catheter Indications Respiratory compromise Pain / discomfort Renal impairment Risks Severe hypovolaemia: replenish albumin SBP Refractory Ascites TIPSS Transplant SBP Rx: Tazocin or cefotaxime until sensitivities known Prophylaxis: high recurrence cipro long-term 33 Medical Jaundice Examination Viva Peripheral Examination Hx Cause CLD Pancreatic Ca: cachexia, Virchow’s node Haemolysis: pallor Pre-hepatic Anaemia: tired, SOB, palpitations, ankle swelling FH: HS CTD: arthritis Abdomen Hepatic EtOH intake Foreign travel: Hep A Blood transfusions, IVDU, sex: Hep B and C Sore throat: EBV Drug Hx: OCP, Abx, neuroleptics, OTCs Excoriations and pruritus Splenomegaly Hepatomegaly Palpable gallbladder: Ca head of pancreas Completion Urine dip: look for BR, urobilinogen and Hb Significant Negatives Acute liver failure / decompensation CLD Organomegaly Differential Ix CLD: EtOH, viral, NAFLD Splenomegaly Haemolysis CLD ( → portal HTN) Viral hepatitis: e.g. EBV Hepatomegaly Hepatitis CLD No CLD or organomegaly Biliary obstruction Haemolysis Drugs: fluclox, OCP Gilberts Urine Dip Pre-hepatic No BR (acholuric) ↑ urobilinogen Hb Haemosiderin Haemolysis CLD Gallstones Hepatic Un- / Conjugated CLD Hepatitis - EtOH - Viral Drugs - Paracetamol - Statins - Anti-TB Post-hepatic Conjugated Gallstones Ca Head Panc LNs @ porta hepatis - Ca - TB Post Hepatic ↑↑cBR No urobilingoen Imaging Abdo US + PV duplex MRCP, CT, MRI Other Liver biopsy: check clotting first Rx: Cause Pre-hepatic Splenectomy Other Causes Pre-hepatic Haemolysis - PNH - MAHA - Malaria - G6PD Hepatic ↑cBR ↑ urobilinogen Bloods FBC and film ± DAT: haemolysis U+E: hepatorenal syndrome LFTs Conjugated vs. unconjugated BR Hepatocellular dysfunction LFTs Cholestatic LFTs Clotting: ↑INR in CLD and Vit K deficiency Liver screen Commonest Causes Pre-hepatic Unconjugated Haemolysis - AIHA - HS - SCD Post-hepatic Dark urine, pale stools Itching Stones: RUQ pain or biliary colic Malignancy Wt. ↓ and ↓ appetite Change in bowel habit: esp. steatorrhoea Back pain Hepatic Congenital AI Ca: 1O, 2O Vasc ↓ BR excretion © Alasdair Scott, 2012 Post-hepatic PBC PSC Cholangio Ca Drugs - OCP - Augmentin, fluclox Hepatic EtOH: abstinence + support Viral: supportive or anti-virals Drugs: avoid Post-Hepatic PBC / PSC: ursodeoxycholic acid Stones / Ca: relieve obstruction 34 Liver Transplant Examination Viva Peripheral Inspection Hx Cause EtOH Sexual Hx, IVDU, transfusions FH Other AI disease: e.g. DM, thyroid DH Transplant Cadaveric or live segmental Any complications Current health Acute rejection: fever, graft pain Immunosuppression Infection: e.g. CMV pneumonitis Skin Ca DH General Evidence of CLD Pigmentation: HH Tattoos and needle marks: Hep B/C Immunosuppressant Stigmata Cushingoid Skin tumours: AKs, SCC (100x ↑ risk), BCC and MM Gingival hypertrophy: ciclosporin Abdomen Mercedes-Benz scar Significant Negatives Evidence of CLD or cause for Tx Evidence of immunosuppression Absence of features of liver failure = working Tx Differential for Mercedes Benz Scar Hepatobiliary surgery Liver transplant Segmental resection Whipples’: pancreaticoduodenectomy Ix Bloods FBC: infection U+E: ciclosporin can → renal impairment LFTs: assess graft function Clotting Fasting glucose: tacrolimus and steroids → DM Drug levels: ciclosporin, tacrolimus Other Liver biopsy: if rejection suspected Top Causes for Liver Tx Cirrhosis Acute liver failure Hep A, B Paracetamol overdose Malignancy Success of Liver Tx 80% 1-yr survival 70% 5-yr survival Immunosuppression Regimen Tacrolimus / ciclosporin Azathioprine Prednisolone ± withdrawal @ 3mo © Alasdair Scott, 2012 35 Hepatomegaly Examination Viva Peripheral Inspection Hx Cause CLD EtOH: palmar erythema, Dupuytren’s HH: skin discolouration Ca: cachexia CCF: ↑ JVP, bibasal creps, ascites, peripheral oedema Haematological: pallor, bruising, purpura, LNs Abdomen Hepatomegaly Define fingerbreadths below costal margin at which liver edge palpable. Moves inferiorly on inspiration Can’t get above it Dull PN Features to note Edge: smooth, craggy, nodular Tenderness Pulsatile Percuss above and below to confirm enlargement Auscultate for liver bruit HCC Other Splenomegaly Inguinal nodes Ascites Completion CVS and Resp: CCF Significant Negatives Splenomegaly Acute liver failure / decompensation Cause: CLD, ↑JVP, pallor, bruising, LNs Common Causes Hepatitis: EtOH, viral, NAFLD CLD Congestion 2O to cardiac failure Other Causes: MACHO Malignancy: 2O Anatomical: Riedel’s lobe, hyperexpanded chest Congestion: TR, Budd Chiari Haem: leukaemia, lymphoma, myeloproliferative, SCD Other: sarcoidosis, amyloidosis, Gaucher’s, ADPKD © Alasdair Scott, 2012 Hepatitis / CLD: EtOH, viral exposure, FH Cardiac: dyspnoea, PND, previous MI, rheumatic fever Haem: tiredness, bruising, infections, bone pain Ix Urine dip BR, urobilinogen Proteinuria: amyloid Bloods FBC ↓Hb: malignancy, chronic disease Lymphocytosis: hepatitis viruses, EBV (atypical) U+E: CCF → renal impairment LFT Clotting Liver screen Imaging Abdo US + PV and hepatic duplex Liver size and texture Focal lesions Ascites Portal vein flow Hepatic veins: thrombosis CT: e.g. for tumour MRI: good quality images of liver parenchyma Liver Biopsy Check clotting first Nodular Pattern Micronodular: EtOH, HH, Wilson’s Macronodular: viral Iron: Pearl’s stain Copper: Rhodamine stain α1ATD: PAS stain (α1AT globules accumulate in liver) Amyloid: apple-green birefringence c̄ Congo Red Granulomata: PBC Rx: Cause EtOH: abstinence + support Viral: supportive or anti-viral therapy HH: venesection ± desferrioxamine Wilson’s: penicillamine CCF: ACEi, β-B and diuretics Haematological: monitoring or chemo 36 Splenomegaly Examination Viva Peripheral Inspection Hx Palpation Splenomegaly Can’t get above it Moves inferiorly toward RIF on respiration Notch Dull PN Not ballotable Size: big or small? Hepatomegaly? Inguinal nodes? Film MF: leukoerythroblastic c̄ teardrop poikiolcytes CLL: smear cells Haemolysis: spherocytes, reticulocytosis Haem: tiredness, bruising, infections, bone pain Cause CLD: EtOH, viral exposure, FH Haematological: pallor, bruising, purpura, LNs, cachexia Infections: fever, sore throat, jaundice, foreign travel Cervical, axilla, inguinal Inflammation: arthritis Portal HTN: CLD signs IE: splinter’s, clubbing Haematological Ix Felty’s Syndrome: rheumatoid hands FBC Abdomen CML: ↑↑↑WBC – PMN, basophils, myelocytes MF: pancytopenia Inspection CLL: lymphocytosis Asymmetry Haemolysis: ↓ Hb, ↑MCV, ↑RDW Completion Cardio and Resp exam: IE and sarcoid Urine dip: haematuria (IE), proteinuria (amyloid) Significant Negatives Hepatomegaly Haem: pallor, bruising, LNs CLD IE: splinters, clubbing RA hands: Felty’s Syndrome Other Bloods DAT U+E and urate: ↑ malignancy → uropathy Imaging Abdo US CT chest and abdomen PET scan Histology / Cytology LN biopsy BM aspirate or trephine biopsy (MF) Genetic Analysis CML: Ph Chr, t(9:22) MF: Jak2+ in 50% Infective Ix Big Spleen: limited differential Dx Myeloproliferative: CML, MF Lymphoproliferative: CLL, lymphoma Infiltrative: amyloidosis, Gaucher’s Developing world: malaria, visceral leishmaniasis Small Spleen: all causes of isolated splenomegaly Common Haem: myelo- / lympho-prolif disorders, haemolysis Portal HTN: mostly 2O to cirrhosis Infection: EBV Other Infection: herpes viruses, hepatitis virus, IE, malaria Inflammation: RA, SLE, Sjogren’s Rare: sarcoidosis, amyloidosis, Gaucher’s, CVID Hepatosplenomegaly As for isolated splenomegaly except for inflammatory causes © Alasdair Scott, 2012 Urine Dip Haematuria: IE Bloods FBC: lymphocytosis (may be atypical in EBV) U+E: renal impairment in IE Thick and thin films Imaging Abdo US Echo: IE Liver Ix Bloods FBC LFT Clotting Liver screen Imaging Abdo US + PV duplex 37 Myloproliferative Disorders Spleen and Splenectomy CML Anatomy Clonal proliferation of myeloid cells 15% of leukaemia Symptoms Hypermetabolism: wt. loss, fever, night sweats, lethargy Massive HSM → abdo discomfort Bruising / bleeding (platelet dysfunction) Gout Hyperviscosity Function: part of the mononuclear phagocytic system Phagocytosis of old RBCs, WBCs Phagocytosis of opsonised bugs: esp. encapsulates Antibody production Sequestration of formed blood elements Platelets, lymphocytes and monocytes Haematopoiesis Philadelphia Chromosome Reciprocal translocation: t(9;22) Formation of BCR-ABL fusion gene Constitutive tyrosine kinase activity Present in >80% of CML Discovered by Nowell and Hungerford in 1960 Ix ↑↑WBC PMN and basophils Myelocytes ± ↓Hb and ↓plat (accelerated or blast phase) ↑urate BM cytogenetic analysis: Ph+ve Rx Imatinib: tyrosine kinase inhibitor → >90% haematological response 80% 5ys Allogeneic SCT Indicated if blast crisis or TK-refractory Primary Myelofibrosis Clonal proliferation of megakaryocytes → ↑ PDGF → Myelofibrosis Extramedullary haematopoiesis: liver and spleen Symptoms Ix Elderly Massive HSM Hypermetabolism: wt. loss, fever, night sweats BM failure: anaemia, infections, bleeding Film: leukoerythroblastic c̄ teardrop poikilocytes Cytopenias BM: dry tap (need trephine biopsy) 50% JAK2+ve Rx Supportive: blood products Splenectomy Allogeneic BMT may be curative in younger pts. Prognosis 5yr median survival © Alasdair Scott, 2012 Intraperitoneal structure lying in the LUQ Measures 1x3x5 inches Weighs ~7oz Lies anterior to ribs 9-11 Hypersplenism Pancytopenia due to pooling and destruction w/i an enlarged spleen. Anaemia, bruising, infections Sequestration crisis in SCD → hypovolaemic shock Hyposplenism Causes Splenectomy Coeliac disease IBD SCD Film Mx ↑ platelets transiently after splenectomy Howell-Jolly bodies Pappenheimer bodies Target cells Immunisations Pneumovax HiB Men C Yrly flu Daily Abx: Pen V or erythromycin Warning: Alert Card and/or Bracelet Splenectomy Indications Trauma Rupture: e.g. 2O to EBV AIHA ITP HS Hypersplenism Complications Redistributive thrombocytosis → early VTE Temporary post-op aspirin prophylaxis Gastric dilatation: transient ileus May disturb gastro-omental vessel ligatures Prophylactic NGT post-op Left lower lobe atelectasis Pancreatitis: tail shares blood supply c̄ spleen ↑ susceptibility to infections Encapsulates: haemophilus, pneumo, meningo 38 Enlarged Kidneys Examination Viva Peripheral Inspection Hx ADPKD: FH, loin pain, haematuria, headaches RCC: haematuria, loin pain Compensatory hypertrophy: previous infections, stones Renal Impairment HTN Pallor Renal Replacement Therapy AV fistula (or scar) Tunnelled dialysis lines (or scar) Tenchkhoff catheter (or scar) Immunosuppressant Stigmata Cushingoid Skin tumours: AKs, SCC, BCC and MM Gingival hypertrophy: ciclosporin Abdomen Inspection Nephrectomy scar Rutherford Morrison scar Tenchkhoff catheter (or scar) Palpation Palpable Kidney Flank mass Can get above it Ballotable Moves inferiorly c̄ respiration Resonant PN Hepatomegaly Renal Transplant Auscultation Renal bruit Completion External genitalia: hydrocele 2O to RCC Urine dip: proteinuria, haematuria CVS: mitral valve prolapse Significant Negatives Unilateral enlargement Hepatomegaly Evidence of RRT or immunosuppression Ix Urine Dip: haematuria, proteinuria Cytology Bloods FBC: ↓Hb 2O to ESRF U+E: ↓eGFR, electrolyte disturbance Bone profile: ↓Ca, ↑ PO4, ↑PTH Imaging Abdo US Confirm renal enlargement Cysts Hydronephrosis Masses Liver enlargement CT/MRI MRA: Berry aneurysms CT abdo: esp. if RCC suspected Other Genetic studies to look for mutation in PKD1 gene on Chr 16: 85% PKD2 gene on Chr 4: 15% Family screen Mx of ADPKD General ↑ water intake, ↓ Na, ↓ caffeine (may ↓ cyst formation) Monitor U+E and BP Genetic counselling 50% chance of transmission 10% are de novo mutations MRA screen for Berry aneurysms Medical Rx HTN aggressively: <130/80 (ACEi best) Rx infections Differential Surgical: Nephrectomy Recurrent bleeds or infections Abdominal discomfort Bilateral ADPKD Bilateral RCC (5%) Bilateral cysts: e.g. in VHL Amyloidosis ESRF in 70% by 70yrs Mx complications: CRF HEALS Dialysis or transplant Unilateral Simple renal cyst RCC Compensatory hypertrophy + contralateral nephrectomy: ADPKD © Alasdair Scott, 2012 39 Cystic Renal Disease RCC / Hypernephroma ADPKD Epidemiology Epidemiology Prev: 1:1000 5% of ESRF in UK Genetics PKD1 gene on Chr 16: 85% PKD2 gene on Chr 4: 15% Involve cell-cell interactions Risk Factors Presentation Age: 30-50s HTN Recurrent UTIs Loin pain: cyst haemorrhage or infection Haematuria Pathology Extra-Renal Involvement Hepatic cysts → hepatomegaly Intracranial Berry aneurysms → SAH MV Prolapse: mid-systolic click + late systolic murmur Prognosis 70% ESRF by 70yrs 90% of renal cancers Age: 55yrs Sex: M>F=2:1 Adenocarcinoma from proximal renal tubular epithelium Clear Cell (glycogen) subtype: 70-80% Presentation Presentation Perinatal Oligohydramnios: may → Potter sequence Clubbed feet, pulm. hypoplasia, cranial abnormalities Bilateral abdominal masses HTN and CRF Extra-Renal Involvement Congenital hepatic fibrosis → Portal HTN Prognosis ESRF by 20yrs Need Tx Simple Renal Cysts Common: 1/3 of pts over 60yrs May present as renal mass and haematuria Contain fluid only: no solid elements Main differential is RCC 50% incidental finding Triad: Haematuria, loin pain, loin mass Invasion of L renal vein → varicocele (1%) Cannonball mets → SOB Paraneoplastic Features ARPKD Epidemiology Prev: 1:40000 Genetics: PKHD1 (fibrocystin) gene on Chr6 Smoking Obesity HTN Dialysis: 15% of pts. develop RCC 4% heritable: e.g. VHL syndrome EPO → polycythaemia PTHrP → ↑ Ca Renin → HTN ACTH → Cushing’s syn. Amyloidosis Spread Direct: renal vein Lymph Haematogenous: bone, liver and lung Ix Blood: polycythaemia, ESR, U+E, ALP, Ca Urine: dip, cytology Imaging CXR: cannonball mets US: mass IVU: filling defect CT/MRI Mx Medical Reserved for pts. c̄ poor prognosis Temsirolimus (mTOR inhibitor) Surgical Radical nephrectomy Consider partial if small tumour or 1 kidney Prognosis: 45% 5ys Dialysis Associated Renal Cysts Seen after prolonged dialysis 2O to obstruction of renal tubules by oxalate crystals ↑ risk of RCC in cyst: 15% of pts on haemodialysis Tuberous Sclerosis (Bourneville’s Disease) AD condition c̄ hamartomas in skin, brain, eye, kidney Skin: nasolabial adenoma sebaceum, ash-leaf macules, peri-ungual fibromas Neuro: ↓IQ, epilepsy, astrocytoma Renal: cysts, angiomyolipomas © Alasdair Scott, 2012 Von Hippel-Lindau Autosomal Dominant Renal and pancreatic cysts Bilateral renal cell carcinoma Haemangioblastomas Often in cerebellum → cerebellar signs Phaeochromocytoma Islet cell tumours 40 Renal Transplant Examination Viva Peripheral Inspection Hx Cause DM GN Transplant Cadaveric or live Any complications: e.g. urinary leaks, infection Current health Acute rejection: fever, graft pain Graft function: Cr levels, BP, urine output Immunosuppression Infection: e.g. CMV pneumonitis Skin Ca CV risk DH Renal Impairment HTN Pallor Renal Replacement Therapy AV fistula (or scar) Tunnelled dialysis scars Tenchkhoff catheter scars Immunosuppressant Stigmata Cushingoid Skin tumours: AKs, SCC (100x ↑ risk), BCC and MM Gingival hypertrophy: ciclosporin Cause DM Finger pricks from BM monitoring Insulin marks on abdomen, lipodystrophy Cystic Kidney Disease Nephrectomy scars or ballotable kidneys Connective Tissue Disease SLE, SS, RA Abdomen Inspect Rutherford Morrison Scar in RIF Nephrectomy scars Tenchkoff catheter scars Palpate Smooth oval mass under scar Dull PN Can get below it Doesn’t move with respiration Ix Urine Dip: haematuria, proteinuria MC+S Bloods FBC: infection U+E: eGFR – look @ trend LFTs: ciclosporin can → hepatic dysfunction Fasting glucose: tacrolimus is diabetogenic Drug levels: ciclosporin, tacrolimus Other Renal biopsy: if rejection suspected Discussion Renal failure: causes, Ix, Mx Renal replacement therapy Renal Tx: complications, immunosuppression Auscultate Renal bruit over transplant Completion Dipstick: haematuria and proteinuria Drug chart: any potentially nephrotoxic drug (e.g. ACEi) BP: HTN common post-Tx Significant Negatives Evidence of immunosuppression Signs of a cause: DM and PKD Working Tx Renal replacement therapy not in use No pain over Tx site Gum Hypertrophy Differential Drugs: ciclosporin, phenytoin, nifedipine Familial AML Scurvy Pregnancy © Alasdair Scott, 2012 41 Renal Transplant: Key Facts Commonest Indications for Renal Tx Diabetic nephropathy GN Polycystic Kidney Disease Hypertensive nephropathy Assessment Virology: CMV, HIV, VZV, hepatitis Co-morbidities: esp. CVD ABO anti-HLA Abs: may be acquired from blood transfusion Haplotype Importance: HLA-DR > HLA-B > HLA-A 2 alleles @ each locus → 6 possible mismatches ↓ mismatches → ↑ graft survival Pre-implantation cross-match Recipient serum vs. donor lymphocytes Contraindications Active infection Cancer Severe co-morbidity Failed pre-implantation x-match Complications Post-op Bleeding Graft thrombosis Infection Urinary leaks Rejection Hyperacute rejection: minutes Path: ABO incompatibility Presentation: thrombosis and SIRS Acute Rejection: <6mo Path: Cell-mediated response Presentation Fever and graft pain ↓ urine output ↑ Cr Rx: Responsive to immunosuppression Chronic Rejection: >6mo Presentation: Gradual ↑ in Cr and proteinuria Path: Interstitial fibrosis + tubular atrophy Rx: supportive, not responsive to immunosuppression Types of Graft Cadaveric: brainstem death c̄ CV support Non-heart beating donor: no active circulation Live-related Optimal surgical timing HLA-matched Improved graft survival Live unrelated Immunosuppression Pre-op: campath / alemtuzumab (anti-CD52) Post-op Short-term: prednisolone Long-term: tacrolimus or ciclosporin Drug Toxicity Ciclosporin: calcineurin inhibitor (blocks IL2 production) Nephrotoxic: may contribute to chronic rejection Gingival hypertrophy Hypertrichosis Hepatic dysfunction Tacrolimus: calcineurin inhibitor (blocks IL2 production) < nephrotoxicity cf. ciclosporin Diabetogenic Cardiomyopathy Neurotoxicity: e.g. peripheral neuropathy Steroids → Cushing’s Syndrome Prognosis t½ for cadaveric grafts: 15yrs t½ for HLA-identical live grafts: >20yrs ↓ immune Function ↑ risk of infection: CMV, PCP, fungi, warts ↑ risk of malignancy Skin: SCC, BCC, MM, Kaposi’s O Post-Tx lymphoproliferative disease (2 EBV) Cardiovascular Disease Hypertension Atheromatous vascular disease A leading cause of death © Alasdair Scott, 2012 42 Renal Replacement Therapy Indications Suggested to start when GFR<15ml/min + symptoms Psychological preparation necessary PD vs. HD depends on med, social and psych factors 20% annual mortality Cardiovascular disease Malnutrition Infection uraemia → granulocyte dysfunction → ↑ sepsisrelated mortality Amyloidosis β2-microglobulin accumulation Carpal tunnel, arthralgia Renal cysts → RCC Haemodialysis Mechanism Counter-current flow Blood flows on one side of semipermeable membrane Dialysate flows in the opposite direction on the other side. Solute transfer by diffusion Ultrafiltration Fluid removal by creation of –ve transmembrane pressure by decreasing the hydrostatic pressure of the dialysate. Use a Vas Cath Blood filtered across a highly permeable membrane by hydrostatic pressure and water and solutes are removed by convection. Ultrafiltrate is replaced by isotonic replacement. Peritoneal Dialysis Mechanism Dialysate introduced into peritoneal cavity by Tenchkhoff catheter. Uraemic solutes diffuse into fluid across peritoneum Ultrafiltration: addition of osmotic agent (e.g. glucose) ~3L 4x /day c̄ ~4h dwell times Types CAPD: fluid exchange during day c̄ long dwell @ night APD: fluid exchanged during night by machine c̄ long dwell throughout day. Advantages Simple to perform Requires less equipment Easier @ home or on holiday Less haemodynamic instability useful if cardio disease Disadvantages st Disequilibration syndrome (usually only 1 dialysis) Rapid changes in plasma osmolarity → cerebral oedema n/v, headache and ↓GCS Fluid balance: BP↓, pulmonary oedema Electrolyte imbalance Aluminium toxicity (in dialysate) → dementia Psychological factors © Alasdair Scott, 2012 Usually only used in ITU Takes longer cf. HD but there is less haemodynamic instability. Mechanism General Dialysis Complications Complications Haemofiltration Inconvenience Body image Anorexia Complications Peritonitis Exit site infection Catheter malfunction Obesity (glucose in dialysate) Mechanical: hernias and back pain 43 Renal Access AV Fistula Tunnelled Cuffed Catheter Examination Tessio Lines Inspection Swelling c̄ surgical scar over distal forearm or @ elbow Evidence of use: needle marks Evidence of infection Palpation Check if painful Temperature Palpable thrill Auscultate Audible bruit Two lines tunnelled under skin and entering IJV Disadvantages May have ↑ recirculation cf. AVF Lower flow rates ↑ risk of infection and thrombosis Complications Adverse events @ insertion: e.g. pneumothorax Line or tunnel infection Blockage Retraction Significant Negatives Evidence of infection, stenosis, aneurysm Viva Definition Surgically created connection between artery and vein Radio-cephalic @ wrist = Cimino-Brescia Brachio-cephalic @ the elbow Venous limb (from machine) is proximal Side-to-side anastomosis c̄ ligation of the distal vein Advantages High flow rates, low recirculation (<10%) Low infection rates Less chance of stenosis cf. grafts Disadvantages Take ~6 weeks to arterialise Affect pts. body image Must take care: avoid shaving, don’t take BP/blood here Complications Thrombosis and stenosis Infection Bleeding Aneurysm Steal syndrome Distal tissue ischaemia Pallor, pain, ↓ pulses May → necrosis ↓ wrist:brachial pressure index Rx: banding (plication) © Alasdair Scott, 2012 44 CRF: Key Facts Complications: CRF HEALS Features Kidney damage ≥3mo indicated by ↓ function Symptoms usually only occur by stage 4 (GFR<30) ESRF is stage 5 or need for RRT Classification Stage 1 2 3 4 5 GFR >90 60-89 30-59 16-29 <15 Cardiovascular disease Renal osteodystrophy Fluid (oedema) HTN Electrolyte disturbances: K, H Anaemia Leg restlessness Sensory neuropathy Renal Osteodystrophy Causes Common DM HTN Other RAS GN CTD: SLE, SS, RA Polycystic disease Drugs: e.g. analgesic nephropathy O Pyelonephritis: usually 2 to VUR Myeloma and amyloidosis Ix Urine Dip: haematuria, proteinuria, glycosuria PCR Normal = <20mg/mM Nephrotic = >300mg/mM BJP: myeloma Function FBC: ↓Hb U+E: ↓ eGFR Bone: ↓Ca, ↑PO4, ↑PTH, ↑ALP Renal Screen DM: fasting glucose, HbA1c ESR Immune SLE: ANA, C3, C4 Goodpasture’s: anti-GBM Vasculitis: ANCA Hepatitis: viral serology Se protein electrophoresis Imaging CXR: pulmonary oedema Renal US Usually small (<9cm) May be large: polycystic, amyloid Bone X-rays: renal osteodystrophy (pseudofractures) CT KUB: e.g. cortical scarring from pyelonephritis Renal biopsy: if cause unclear and size normal Histology subtype Amyloid: apple-green birefringence c̄ Congo Red Features Osteoporosis: ↓ bone density Osteomalacia: ↓ mineralisation of osteoid (matrix) 2O/3O HPT → osteitis fibrosa cystica Subperiosteal bone resorption Acral osteolysis: short stubby fingers Pepperpot skull Osteosclerosis of the spine → Rugger Jersey spine Sclerotic vertebral end plate c̄ lucent centre Extraskeletal calcification: e.g. band keratopathy Mechanism ↓ 1α-hydroxylase → ↓ vit D activation → ↓Ca → ↑PTH Phosphate retention → ↓Ca and ↑PTH (directly) ↑PTH → activation of osteoclasts ± osteoblasts Also acidosis → bone resorption General Mx Rx reversible causes Stop nephrotoxic drugs Na, K, fluid and PO4 restriction Optimise CV Risk Smoking cessation, exercise Statin + antiplatelet Rx DM Specific Mx Hypertension Target <140/90 (<130/80 if DM) In DM kidney disease give ACEi/ARB (inc. if normal BP) Oedema: frusemide Bone Disease Phosphate binders: calcichew, sevelamer Vit D analogues: alfacalcidol (1 OH-Vit D3) Ca supplements Cinacalcet: Ca mimetic Anaemia Exclude IDA and ACD EPO to raise Hb to 11g/dL (higher = thrombosis risk) Restless Legs: clonazepam © Alasdair Scott, 2012 45 CRF: Specific Causes Diabetic Nephropathy Commonest cause of ESRF: >20% Advanced / ESRF occurs in 40% of T1 and T2 DM Myeloma Pathology Excess production of monoclonal Ab ± light chains (excreted and detected in 60% as urinary BJP). Light chains block tubules and have direct toxic effects → ATN. Myeloma also assoc. c̄ ↑↑Ca2+ Pathology Diabetic nephropathy describes conglomerate of lesions occurring concurrently. Hyperglycaemia → hypertrophy and ROS production Hallmark is glomerulosclerosis and nephron loss Nephron loss → RAS activation → HTN Presentation ARF / CRF Amyloidosis Clinically Microalbuminuria 30-300mg/d or albumin:creatinine >3mg/mM Strong independent RF for CV disease Progresses to proteinuria: albuminuria >300mg/d Usually coexists c̄ other micro- and macro-vasc disease Screening T2DMs should be screened for microalbuminuria 6moly Mx Good glycaemic control delays onset and progression UKPDS: UK Prospective Diabetes Study DCCT: Diabetes Control and Complications Trial Control HTN: BP target 130/80 ACEi/ARB: even if normotensive Stop smoking Combined kidney pancreas Tx possible in selected pts Rx Ensure fluid intake of 3L/d to prevent further impairment Dialysis may be required in ARF Renovascular Disease: RAS Cause Presentation Rheumatological Disease RA NSAIDs → ATN Penicillamine and gold → membranous GN AA amyloidosis occurs in 15% SLE Involves glomerulus in 40-60% → ARF/CRF Pathogenesis Immune complex deposition → T3 hypersensitivity Typically membranous GN Proteinuria and ↑BP Rx Atherosclerosis in 80% Fibromuscular dysplasia Thromboembolism External mass compression Ix Refractory hypertension Renal bruits Worsening renal function after ACEi/ARB Flash pulmonary oedema (no LV impairment on echo) Other signs of PVD CT/MR angio Renal angiography Rx Rx medical CV risk factors Angioplasty and stenting AVOID ACEi/ARB Proteinuria: ACEi Aggressive GN: immunosuppression Diffuse Systemic Sclerosis Renal crisis: malignant HTN + ARF Commonest cause of death Rx: ACEi if ↑BP or renal crisis © Alasdair Scott, 2012 46 Inflammatory Bowel Disease Examination Viva Peripheral Inspection Hx Symptoms Wt. loss, fever, malaise Abdominal pain Diarrhoea, blood and/or mucus PR Peri-anal disease: abscesses, fistulae Extra-intestinal: EN, arthritis, iritis, gallstones, PSC Therapy Admissions Medical therapy Operations General Often young female pt. Laparotomy scars Malnutrition or wt. loss Cushingoid Pallor Hands Clubbing Leukonychia Beau’s lines Eyes Pale conjunctivae Iritis, episcleritis Mouth Aphthous ulcers Gingival hypertrophy (ciclosporin) Legs Erythema nodosum Pyoderma gangrenosum Abdominal Inspection Scars May be multiple and atypical in Crohn’s Healed stoma sites Healed drain sites Stomas or healed stoma sites Enterocutaneous fistulae Palpation Tenderness RIF mass ± hepatomegaly Completion Inspect perineum for perianal disease Examine for extra-intestinal features Large joint monoarthritis Sacroileitis Bronchiectasis Differential Ix Bloods FBC: ↓Hb, ↑WCC U+E: dehydration, ↓K LFTs: ↓ albumin, deranged LFTs Clotting: ↑INR ↑ ESR, ↑ CRP: used to monitor activity Haematinics: Fe, B12, folate Markers of Activity in CD ↓Hb, ↑ESR, ↑CRP, ↑WCC, ↓albumin Stool Culture + CDT: exclude infective causes Campy, Yersinia, Shigella, C. diff, TB Imaging AXR Toxic megacolon in UC O Bowel obstruction 2 to strictures in Crohn’s Contrast studies Ba or Gastrograffin enema in UC Small bowel follow-through in Crohn’s MRI: perianal disease in Crohn’s Endoscopy Ileocolonoscopy + regional biopsy Ix of choice Safe in acute disease Distinguish UC from Crohn’s Assess disease severity Wireless capsule endoscopy Discussion Clinicopathological distinction between UC and CD Main complications of IBD Extra-intestinal manifestations Definition and Mx of severe exacerbation Chronic Mx Crohn’s UC Malabsorption: coeliac Mid-line lap: FAP © Alasdair Scott, 2012 47 IBD: Key Facts for Medicine Pathology Macroscopic Location Distribution Strictures Complications UC Crohn’s UC Crohn’s Rectum + colon ± backwash ileitis Contiguous No Mouth to anus esp. terminal ileum Skip lesions Yes Toxic megacolon Haemorrhage Malignancy - CRC - Cholangiocarcinoma VTE Fistulae Perianal abscess Strictures Malabsorption Microscopic Inflammation Ulceration Mucosal Shallow, broad Fibrosis Granulomas Pseudoplyps Fistulae None None Marked No Transmural Deep, thin, serpiginous → cobblestone mucosa Marked Present Minimal Yes Toxic dilatation Extra-Intestinal Features Skin Clubbing Erythema nodosum PG (esp. UC) Acute Severe Exacerbation Mouth Aphthous ulcers Dx: True-Love and Witts Criteria Eyes Anterior uveitis Episcleritis Joints Large joint arthritis Sacroileitis Hepatic Other AA amyloidosis Oxalate renal stones Symptoms BMs >6 x /d Large PR bleed Systemic Signs ↑ HR >90 Pyrexia >37.8 Laboratory Values ↓ Hb <10.5g/dL ESR >30mm/Hr Mx Fatty liver Chronic hepatitis → cirrhosis Gallstones (esp. CD) PSC + cholangiocarcinoma (esp. UC) General Resus: Admit, NBM, IV hydration Hydrocortisone: 100mg IV QDS + PR if rectal disease Thromboprophylaxis: LMWH Dietician review Mx of Mild-Mod Disease Monitoring Bloods: FBC, ESR, CRP, U+E Vitals + stool chart Daily examination Induction Crohn’s Abx: metronidazole PO or IV Consider parenteral nutrition Improvement: → oral pred (40mg/d) Refractory: methotrexate ± infliximab UC Improvement: → oral pred + 5-ASA Refractory: ciclosporin or infliximab Indications for Surgery Obstruction Megacolon Perforation Severe GI bleeding Failure to respond to medical therapy © Alasdair Scott, 2012 MDT: GP, gastroenterologist, dietician, nurses, surgeon Nutrition: ADEK vitamins, high fibre diet (esp. CD) UC CD Oral Oral 1: 5-ASAs 2: prednisolone 3: ciclosporin / infliximab 1: Ileocaecal: budesonide 1: Colitis: sulfasalazine 2: prednisolone (tapering) 3: methotrexate 4: infliximab / adalimumab Topical: Enemas / foams - 5-ASA - Pred Maintenance UC CD 1: 5-ASA 2: axathioprine 3: infliximab / adalimumab 1: azathioprine 2: methotrexate 3: infliximab / adalimumab 48 Neurology Contents Parkinson’s Disease ................................................................................................................................................................ 50 Parkinsonism: Key Facts ......................................................................................................................................................... 51 Cerebellar Syndrome ............................................................................................................................................................... 52 Cerebellar Syndrome: Key Causes ......................................................................................................................................... 53 UMN Signs ............................................................................................................................................................................... 54 Cord Disease ........................................................................................................................................................................... 55 Acute Stroke: Key Facts .......................................................................................................................................................... 56 Non-Acute Stroke: Key Facts .................................................................................................................................................. 57 Multiple Sclerosis ..................................................................................................................................................................... 58 Motor Neurone Disease ........................................................................................................................................................... 59 LMN Signs ............................................................................................................................................................................... 60 Peripheral Polyneuropathy ...................................................................................................................................................... 61 Diabetic Neuropathy ................................................................................................................................................................ 62 Charcot-Marie-Tooth Syndrome .............................................................................................................................................. 62 Myasthenia Gravis ................................................................................................................................................................... 63 GBS ......................................................................................................................................................................................... 63 Facial Nerve Palsy ................................................................................................................................................................... 64 Facial Nerve Palsy: Key Causes ............................................................................................................................................. 65 Facial Anaesthesia................................................................................................................................................................... 65 Abnormal Pupils ....................................................................................................................................................................... 66 Visual Fields............................................................................................................................................................................. 67 Ophthalmoplegia ...................................................................................................................................................................... 68 Hearing Loss ............................................................................................................................................................................ 69 Speech ..................................................................................................................................................................................... 70 © Alasdair Scott, 2012 49 Parkinson’s Disease Examination Viva Inspection Hx Asymmetrical resting tremor: 5Hz Exacerbated by counting backwards Hypomimia (↓ facial expression) Extrapyramidal posture Symptoms: tremor, rigidity, akinesia Autonomic Postural hypotension Urinary problems, constipation Hypersalivation ADLs Handwriting, buttons, shoe-laces Getting in and out of a car Sleep Turning in bed Insomnia Daytime sleepiness Complications Depression Drug SEs: esp. motor fluctuations Cause Sudden onset Eye or balance problems Visual hallucinations, ↓ memory DH FH Arms Demonstrate bradykinesia Tone Cogwheel rigidity Enhanced by synkinesis Normal power and reflexes Coordination May be abnormal if MSA Eyes Movements Nystagmus: MSA Vertical gaze palsy: PSP Saccades Slow initiation and movement Extras Glabellar tap Gait Slow initiation Shuffling Hurrying: festination Absent arm swing Write sentence and draw spiral BP lying and standing Completion Mini mental state examination Drug chart Abdominal examination: hepatomegaly + signs of CLD Causes Idiopathic PD Parkinson Plus Syndromes Progressive supranuclear palsy MSA Lewy Body Dementia Corticobasilar degeneration Multiple infarcts in the substantia nigra Wilson’s disease Drugs: neuroleptics and metoclopramide Ix Bloods Caeruloplasmin: ↓ in Wilson’s Imaging CT / MRI: exclude vascular cause DaTscan Ioflupane I123 injection Binds to dopaminergic neurones and allows visualisation of substantial nigra Can exclude other causes of tremor: e.g. BET Mx General MDT: neurologist, PD nurse, physio, OT, social worker, GP and carers Assess disability e.g. UPDRS: Unified Parkinson’s Disease Rating Scale Physiotherapy: postural exercises Depression screening Specific L-DOPA + Carbidopa or benserazide Da agonists: ropinerole, pramipexole Apomorphine: SC rescue drug MOA-B inhibitors: rasagiline COMT inhibitors: tolcapone Amantidine Anti-muscarinics: procyclidine Adjuncts Domperidone: nausea Quetiapine: psychosis Citalopram: depression Other Deep brain stimulation Basal ganglia disruption © Alasdair Scott, 2012 50 Parkinsonism: Key Facts Idiopathic PD Other Causes of Parkinsonism Epidemiology Multisystem Atrophy Mean onset 65yrs 2% prevalence Pathophysiology Destruction of dopaminergic neurones in pars compacta of substantia nigra. β-amyloid plaques Neurofibrillary tangles: hyperphosphorlated tau Features: TRAPPS PD Asymmetric onset: side of onset remains worst Pathology Papp-Lantos Bodies: α-synuclein inclusions in glial cells Features Autonomic dysfunction: postural hypotension Parkinsonism Cerebellar ataxia If autonomic features predominate, may be referred to as Shy Drager Syndrome Progressive Supranuclear Palsy Tremor: ↑ by stress, ↓ by sleep Postural instability → falls Rigidity: lead-pipe, cog-wheel Vertical gaze palsy Akinesia: slow initiation, difficulty c̄ repetitive movement, Pseudobulbar palsy: speech and swallowing problems micrographia, monotonous voice, mask-like face Parkinsonism Postural instability: stooped gait c̄ festination Symmetrical onset Postural hypotension: + other autonomic dysfunction Tremor is unusual Sleep disorders: insomnia, EDS, OSA, RBD Psychosis: esp. visual hallucinations Corticobasilar Degeneration Depression / Dementia / Drug SEs Unilateral parkinsonism: esp. rigidity Aphasia Sleep Disorder Astereognosis: cortical sensory loss Affects ~90% of PD pts. → Alien limb phenomenon: autonomous arm Insomnia + frequent waking → EDS movements Inability to turn Restless legs Lewy Body Dementia Early morning dystonia (drugs wearing off) Nocturia Pathology OSA α-synuclein and ubitquitin Lewy Bodies in brainstem and REM Behavioural sleep Disorder neocortex Loss of muscle atonia during REM sleep Violent enactment of dreams Features Da SEs: insomnia, drowsiness, EDS Fluctuating cognition Visual hallucinations Autonomic Dysfunction Parkinsonism Combined effects of drugs and neurodegeneration Postural hypotension Vascular Parkinsonism Constipation Sudden onset Hypersalivation → dribbling (↓ ability to swallow saliva) Parkinsonism worse in legs than arms Urgency, frequency, nocturia Pyramidal signs ED Prominent gait abnormality Hyperhidrosis L-DOPA SEs: DOPAMINE Dyskinesia On-Off phenomena = Motor fluctuations Psychosis ABP↓ Mouth dryness Insomnia N/V EDS (excessive daytime sleepiness) Motor Fluctuations End-of-dose: deterioration as dose wears off c̄ progressively shorter benefit. On-Off effect: unpredictable fluctuations in motor performance unrelated to timing of dose. © Alasdair Scott, 2012 Causes of Tremor Resting: parkinsonism Intention: cerebellar Postural Worse c̄ arms outstretched BET Endocrine: ↑T4 Alcohol withdrawal Toxins: β-agonists Sympathetic: anxiety Benign Essential Tremor AD Occur with movement and worse c̄ anxiety, caffeine Doesn’t occur c̄ sleep Better c̄ EtOH 51 Cerebellar Syndrome Examination Viva Gait Hx Arms Outstretched Ataxia Rebound DaNISh Dysdiadochokinesia: hands and feet Nystagmus + Rapid Saccades Saccades: overshoot Intention tremor and dysmetria Slurred speech Completion Walk Heal-to-Toe On tip toes On heal Romberg’s Cranial nerves: brainstem stroke, MS, CPA lesion Peripheral nervous system: MS Signs of CLD Drug chart: phenytoin Causes: DAISIES Demyelination Alcohol Infarct: brainstem stroke SOL: e.g. schwannoma + other CPA tumours Inherited: Wilson’s, Friedrich’s, Ataxia Telangiectasia, VHL Epilepsy medications: phenytoin System atrophy, multiple Neurophysiology Cerebellar signs are ipsilateral Bilateral cerebellar signs more likely to represent a global pathology Alcohol MS Phenytoin Cerebellar vermis lesion Ataxic trunk and gait Normal arms MS: paraesthesia, visual problems, muscle weakness Alcohol consumption Infarct: onset, stroke risk factors Schwannoma: hearing loss, vertigo, tinnitus, ↑ICP FH DH Ix ECG Arrhythmia Bloods EtOH: FBC, U+E, LFT Thrombophilia: clotting Wilson’s: ↓ caeruloplasmin CSF Oligoclonal bands Imaging MRI is best to visualise the posterior cranial fossa Other CPA lesion: pure tone audiometry Mx General MDT: GP, neurologist, radiologist, neurosurgeon, specialist nurses, physio, OT CV Risk ↓ EtOH Specific MS: methylprednisolone EtOH: Pabrinex, tapering course of chlordiazepoxide Infarct: consider thrombolysis Schwannoma: gamma-knife, surgery Wilson’s: penicillamine Nystagmus Cerebellar Cause Fast phase towards lesion Maximal looking towards lesion Vestibular Cause Fast phase away from lesion Maximal looking away from lesion © Alasdair Scott, 2012 52 Cerebellar Syndrome: Key Causes Lateral Medullary Syndrome / Wallenberg’s Friedrich’s Ataxia Cause Occlusion of vertebral artery or PICA Pathophysiology Auto recessive mitochondrial disorder Progressive degeneration of Dorsal column Spinocerebellar tracts and cerebellar cells Corticospinal tracts Onset in teenage years Assoc. c̄ HOCM and mild dementia Features Signs are ipsilateral apart from body anaesthesia to pain Structure Nucleus Ambiguus - motor to CN 9/10 Inferior cerebellar peduncle Vestibular nucleus Spinothalamic tract Spinal trigeminal nucleus Sympathetic fibres Symptom Dysphagia Ataxia Nystagmus Vertigo ↓ Pain: contralateral ↓ Pain: ipsilateral Horner’s DANVAH Dysphagia Ataxia Nystagmus Vertigo Anaesthesia: dissociated pain loss Horner’s syndrome Vestibular Schwannoma Pathophysiology Benign, slow-growing tumour of superior vestibular nerve SOL → CPA syndrome: 80% of CPA tumours Assoc. c̄ NF2 Presentation Unilat SNHL, tinnitus ± vertigo ↑ICP: headache Ipsilateral CN 5, 6, 7 and 8 palsies and cerebellar signs Facial anaesthesia + absent corneal reflex LR palsy LMN facial nerve palsy SNHL DANISH Ix Rx MRI of cerebellopontine angle Main Features Pes cavus Bilateral cerebellar ataxia Leg wasting + areflexia but extensor plantars Loss of vibration and proprioception Additional Features High-arched palate Optic atrophy and retinitis pigmentosa th HOCM: ESM + 4 heart sound DM in 10%: dip the urine Ataxia Telangiectasia Autosomal recessive Defect in DNA repair Onset in childhood / early adult Features Progressive ataxia Telangiectasia: conjunctivae, eyes, nose, skin creases Defective cell-mediated immunity and Ab production Infections Lymphoproliferative disease Wilson’s AR mutation of ATP7B gene on Chr13 Features: CLANK Cornea: Keiser-Fleischer rings Liver: CLD Arthritis Neuro: parkinsonism, ataxia, psychiatric problems Kidney: Fanconi’s syn Gamma-knife Surgery CPA Tumour Differential Vestibular Schwannoma Meningioma Cerebellar astrocytoma Metastases Von Hippel-Lindau Renal cysts Bilateral renal cell carcinoma Haemangioblastomas Often in cerebellum → cerebellar signs Phaeochromocytoma Islet cell tumours © Alasdair Scott, 2012 53 UMN Signs Examination Viva Inspection Hx Walking aids May have disuse atrophy and contractures Limb position Leg: extended, internally rotated c̄ foot plantar flexed Arm: flexed, internally rotated, supinated Gait Unilateral → circumducting Bilateral → scissoring UMN Signs ↑ tone Pyramidal distribution of weakness Leg: extensors stronger than flexors Arm: flexors stronger than extensors Hyper-reflexia Extensor plantars Sensation Examine for sensory level: suggests cord lesion Completion CN: evidence of MS Cerebellum: evidence of MS MS: tingling, eye problems, ataxia, other weakness Cord compression: back pain, fever, wt. loss Trauma FH Ix MRI Cord and brain Further Ix Depend on Cause MS LP: oligoclonal bands Abs: MBP, NMO Evoked potentials Compression FBC: infection CXR: malignancy DRE SCDC B12 level Pernicious anaemia Abs: IF, parietal cell Mx Bilateral LL: Spastic Paraparesis Common MS Cord compression Cord Trauma CP Supportive MDT: GP, neurologist, radiologist, neurosurgeon, specialist nurses, physio, OT Orthoses Mobility aids Urinary: ICSC Contractures: baclofen, botulinum injection, physio Other Familial spastic paraparesis Vascular: e.g. aortic dissection → Beck’s syndrome Infection: HTLV-1 Tumour: ependymoma Syringomyelia Mixed UMN and LMN Features MND Ataxia, Friedrich’s SCDC: B12 Taboparesis Unilateral LL Hemisphere → Spastic Hemiparesis Stroke MS SOL CP Hemicord → Spastic Hemiparesis or Monoparesis MS Cord Compression © Alasdair Scott, 2012 54 Cord Disease Cord Compression Syringomyelia Key Features Characteristics Syrinx: tubular cavity in central canal of the cord. Symptoms may be static for yrs but then worsen fast e.g. on coughing, sneezing as ↑ pressure → extension Commonly located in cervical cord Syrinx expands ventrally affecting: Decussating spinothalamic neurones Anterior horn cells Corticospinal tracts Pain Local, deep Radicular Weakness LMN @ level UMN below level Sensory level Sphincter disturbance Causes Ix Trauma: vertebral # Infection: epidural abscess, TB Malignancy: breast, thyroid, bronchus, kidney, prostate Disc prolapse: above L1/2 MRI is definitive modality CXR for primaries Causes Blocked CSF circulation c̄ ↓ flow from posterior fossa Arnold-Chiari malformation (cerebellum herniates through foramen magnum) Masses Spina bifida 2O to cord trauma, myelitis, cord tumours and AVMs Cardinal Signs 1. Dissociated Sensory Loss Loss of pain and temperature → scars from burns Preserved touch, proprioception and vibration. Root distribution reflects syrinx location Usually upper limbs and chest: “cape” 2. Wasting/weakness of hands ± Claw hand 3. Loss of reflexes in upper limb 4. Charcot joints: shoulder and elbow Rx This is a neurosurgical emergency Malignancy Dexamethasone IV Consider chemo, radio and decompressive laminectomy Abscess: abx and surgical decompression Cauda Equina Lesions Pain Back pain Radicular pain down legs Weakness Bilateral flaccid, areflexic lower limb weakness Sensation Saddle anaesthesia Sphincters Incontinence / retention of faeces / urine Poor anal tone Causes and Mx as above Anterior Spinal Artery / Beck’s Syndrome Infarction of spinal cord in distribution of anterior spinal artery: ventral 2/3 of cord. Causes: Aortic aneurysm dissection or repair Effects Para- / quadri-paresis Impaired pain and temperature sensation Preserved touch and proprioception © Alasdair Scott, 2012 Other Signs Ix UMN weakness in lower limbs c̄ extensor plantars Horner’s syndrome Syringobulbia: cerebellar and lower CN signs Kyphoscoliosis MRI spine Surgery Decompression at the foramen magnum for Chiari mal Human T-lymphotropic Virus-1 Retrovirus ↑ prevalence in Japan and Caribbean Features Adult T cell leukaemia / lymphoma Tropical spastic paraplegia / HTLV myelopathy Slowly progressing spastic paraplegia Sensory loss and paraesthesia Bladder dysfunction 55 Acute Stroke: Key Facts Definition Rapid onset focal neurological deficit of vascular origin lasting >24hrs. Pathogenesis Ischaemic: 80% Atheroma: large or small vessel Embolism: cardiac or atherothromboembolism Haemorrhagic: 20% Clinical Features: Bamford Classification TACS: carotid / MCA and ACA territory Hemiparesis and/or hemisensory deficit Homonymous hemianopia Higher cortical dysfunction Dominant: aphasia Non-dominant: neglect, apraxia PACS: carotid / MCA and ACA territory 2/3 of TACS criteria, usually Homonymous hemianopia Higher cortical dysfunction Acute Management Resuscitate Ensure patent airway: consider NGT NBM until swallowing assessed by SALT Don’t overhydrate: risk of cerebral oedema BM: exclude hypoglycaemia Monitor Glucose: 4-11mM: sliding scale if DM BP: Rx of HTN can → ↓ cerebral perfusion Neuro obs Bloods FBC: infection (sepsis may → stroke) U+E: electrolyte disturbances may mimic stroke Glucose: exclude hypoglycaemia Clotting: ↑ or ↓ INR may indicate cause Imaging Urgent CT/MRI Diffusion-weighted MRI is most sensitive for acute infarct CT will exclude primary haemorrhage Medical Consider thrombolysis if 18-80yrs and <4.5hrs since POCS: vertebrobasilar territory onset of symptoms Any of Alteplase (rh-tPA) Cerebellar syndrome → ↓ death and dependency (OR 0.64) Brainstem syndrome CT 24h post-thrombolysis to look for haemorrhage Homonymous hemianopia Aspirin 300mg PO/PR once haemorrhagic stroke excluded ± PPI LACS: infarct around basal ganglia, internal capsule, thalamus Clopidogrel if aspirin sensitive and pons Pure motor: post. limb of internal capsule Surgery Pure sensory: post. thalamus (VPL) Neurosurgical opinion if intracranial haemorrhage Mixed sensorimotor: internal capsule May coil bleeding aneurysms Dysarthria / clumsy hand Decompressive hemicraniectomy for some forms of Ataxic hemiparesis: ant. limb of internal capsule MCA infarction. Differential Head injury ↑ or ↓ glucose SOL Infection Drugs: e.g. opiate OD © Alasdair Scott, 2012 Stroke Unit Specialist nursing and physio Early mobilisation DVT prophylaxis Secondary Prevention Rehabilitation 56 Non-Acute Stroke: Key Facts Stroke Work-Up ECG ± 24hr Tape Arrhythmia Old ischaemia Bloods FBC: ↑ or ↓ Hb U+E: association c̄ renovascular disease Glucose: exclude DM Lipids: CV risk Clotting and thrombophilia screen Vasculitis: ESR, ANA Thrombophilia Screen FBC, clotting, fibrinogen concentration APC resistance / F5 Leiden Lupus anticoagulant Anti-cardiolipin Abs Assays for protein C and S and AT3 activity PCR for prothrombin gene mutation Imaging CXR O Cardiomegaly 2 to HTN Aspiration Carotid doppler Echo Mural thrombus Regional wall motion abnormality ASD, VSD: paradoxical emboli Rehabilitation Must occur on a dedicated stroke unit MENDS MDT: physio, SALT, dietician, OT, specialist nurses, neurologist, family Eating Screen swallowing: refer to specialist NG/PEG if unable to take oral nutrition Screen for malnutrition (MUST tool) Supplements if necessary Neurorehab: physio and speech therapy Botulinum can help spasticity DVT Prophylaxis Sores: must be avoided @ all costs Prognosis @ 1yr 10% recurrence PACS 20% mortality 1/3 of survivors independent 2/3 of survivors dependent TACS is much worse 60% mortality 5% independence Secondary Prevention Risk factor control as above Start a statin after 48h Aspirin / clopi 300mg for 2wks after stroke then either Clopidogrel 75mg OD (preferred option) Aspirin 75mg OD + dipyridamole MR 200mg BD Warfarin instead of aspirin/clopidogrel if Cardioembolic stroke or chronic AF Start from 2wks post-stroke (INR 2-3) Don’t use aspirin and warfarin together. Carotid endarterectomy if good recovery + ipsilat stenosis ≥70% © Alasdair Scott, 2012 57 Multiple Sclerosis Definition A chronic inflammatory condition of the CNS characterised by multiple plaques of demyelination disseminated in time and space. Epidemiology Lifetime risk: 1/1000 Age: mean @ onset = 30yrs Sex: F>M = 3:1 Race: rarer in blacks Aetiology Genetic (HLA-DRB1), environmental, viral (EBV) Pathophysiology CD4 cell-mediated destruction of oligodendrocytes → demyelination and eventual neuronal death. Initial viral inflam primes humoral Ab responses vs. MBP Plaques of demyelination are hallmark Classification Relapsing-remitting: 80% Secondary progressive Primary progressive: 10% Progressive relapsing Presentation: TEAM Tingling Eye: optic neuritis (↓ central vision + eye move pain) Ataxia + other cerebellar signs Motor: usually spastic paraparesis Clinical features Sensory: Dys/paraesthesia ↓ vibration sense Trigeminal neuralgia Motor: Spastic weakness Transverse myelitis Eye: Cerebellum: Trunk and limb ataxia Scanning dysarthria Falls Diplopia Visual phenomena Bilateral INO Optic neuritis → atrophy GI: Swallowing disorders Constipation Sexual/GU: ED + anorgasmia Retention Incontinence Lhermitte’s Sign Neck flexion → electric shocks in trunk/limbs Optic Neuritis PC: pain on eye movement, rapid ↓ central vision Uhthoff’s: vision ↓ c̄ heat: hot bath, hot meal, exercise o/e: ↓ acuity, ↓ colour vision, white disc, central scotoma, RAPD INO / ataxic nystagmus / conjugate gaze palsy Disruption of MLF connecting CN6 to CN3 Weak adduction of ipsilateral eye Nystagmus of contralateral eye Convergence preserved © Alasdair Scott, 2012 Ix MRI: Gd-enhancing or T2 hyper-intense plaques Gd-enhancement = active inflammation Typically located in periventricular white matter LP: IgG oligoclonal bands (not present in serum) Abs Anti-MBP NMO-IgG: highly specific for Devic’s syn. Evoked potentials: delayed auditory, visual and sensory Diagnosis: clinical Demonstration of lesions disseminated in time and space May use McDonald Criteria Differential Inflammatory conditions may mimic MS plaques: CNS sarcoidosis SLE Devic’s: Neuromyelitis optica (NMO) MS variant c̄ transverse myelitis and optic atrophy Distinguished by presence of NMO-IgG Abs Mx MDT: neurologist, radiologist, physio, OT, specialist nurses, GP, family Acute Attack Methylpred 1g IV/PO /24h for 3d Doesn’t influence long-term outcome ↓ duration and severity of attacks Preventing Relapse: Disease Modifying IFN-β: ↓ relapses by 30% in RRMS MS Glatiramer: similar efficacy to IFN-β Preventing Relapse: Biologicals Natalizumab: anti-VLA-4 Ab ↓ Relapses by 2/3 in RRMS Alemtuzumab (Campath): anti-CD52 nd 2 line in RRMS Symptomatic Fatigue: modafinil Depression: SSRI (citalopram) Pain: amitryptylline, gabapentin Spasticity: physio, baclofen, dantrolene, botulinum Urgency / frequency: oxybutynin, tolterodine ED: sildenafil Tremor: clonazepam Prognosis Poor prognostic signs: Older female Motor signs @ onset Many relapses early on Many MRI lesions 58 Motor Neurone Disease Examination Viva Inspection Ix Wasting and fasciculation Esp. tongue fasciculation Tone Spastic Brain/cord MRI: exclude structural cause Cervical cord compression → myelopathy Brainstem lesions EMG: fasciculation LP: exclude inflammatory cause Power Diagnostic Criteria Revised El Escorial Criteria Reflexes Mx Sensation: NORMAL General MDT: neurologist, physio, OT, dietician, specialist nurse, GP, family Discussion of end-of-life decisions E.g. Advanced directive DNAR Weak Absent and/or brisk E.g. absent knee jerks c̄ extensor plantars Completion Speech Bulbar: nasal Pseudobulbar: hot-potato Jaw-jerk Bulbar: absent Pseudo-bulbar: brisk Eye movements: MND does not involve the eyes Differential Cervical cord compression → myelopathy Brainstem lesions Polio: asymmetrical LMN paralysis Mixed UMN and LMN Signs MND Ataxia, Friedrich’s SCDC: B12 Taboparesis Specific Riluzole: antiglutamatergic that prolongs life by ~3mo Supportive Drooling: amitriptyline Dysphagia: NG or PEG feeding Respiratory failure: NIV Pain: analgesic ladder Spasticity: baclofen, botulinum Prognosis Most die w/i 3yrs Bronchopneumonia and respiratory failure Worse prog: elderly, female, bulbar involvement Classification Amyotrophic Lateral Sclerosis: 50% Corticospinal tracts → UMN and LMN signs + fasciculation Progressive Bulbar Palsy: 10% Only affects CN 9-12 → bulbar palsy Progressive Muscular Atrophy: 10% Anterior horn cell lesion → LMN signs only Distal to proximal Better prognosis cf. ALS Primary Lateral Sclerosis: 30% Loss of Betz cells in motor cortex → mainly UMN signs Marked spastic leg weakness and pseudobulbar palsy No cognitive decline © Alasdair Scott, 2012 59 LMN Signs Examination Ix LMN Signs Peripheral Neuropathy See below Wasting Fasciculation Hypotonia Hyporeflexia Causes Pathology anywhere from anterior horn to muscle itself Bilateral, Symmetrical and Distal Motor Peripheral Polyneuropathy ± sensory disturbance = Mixed Peripheral Polyneuropathy Proximal Myopathy Bloods DM: glucose, HbA1c Muscle damage: CK, ESR, AST, LDH Endocrine: TSH, Ca, 9am cortisol, IGF-1 Abs: anti-Jo1 CXR: paraneoplastic EMG Genetic analysis Muscle biopsy Differential HMSN Paraneoplastic Lead poisoning Acute: GBS, Botulism Mononeuropathy Bloods DM: glucose, HbA1c B12, folate Vasculitis: ESR, ANA, ANCA EMG + nerve conduction Bilateral, Symmetrical and Proximal Radiculopathy / Plexopathy MRI Proximal myopathy Differential Inherited: muscular dystophy Inflammation Polymyositis Dermatomyositis Endocrine Cushing’s Syndrome Acromegaly Thyrotoxicosis Osteomalacia Diabetic Amyotrophy Drugs: alcohol, statins, steroids Malignancy: paraneoplastic Unilateral Isolated to single limb + no sensory signs Old polio Localised to group of muscles c̄ same supply Segmental: nerve roots, plexus Peripheral: mononeuropathy Hand Wasting Anterior horn: syringomyelia, MND, polio Roots (C8 T1): spondylosis Brachial Plexus Compression: cervical rib Avulsion: Klumpke’s palsy Neuropathy Generalised: HMSN Mononeuritis multiplex: DM Compressive mononeuropathy Muscle Disuse: RA Distal myopathy: myotonic dystrophy © Alasdair Scott, 2012 60 Peripheral Polyneuropathy Examination Viva Sensory Hx Time-course Precise symptoms Ataxia: B12 Painful dysesthesia: EtOH, DM Assoc. events D&V: GBS ↓wt: Ca Arthralgia: connective tissue Travel, EtOH, drugs Bilateral, symmetrical Glove and stocking distribution: length dependent ↓ tendon reflexes: loss of ankle jerks in DM Signs of trauma or joint deformity (Charcot’s joints) Loss of proprioception → +ve Romberg’s Motor Bilateral, symmetrical LMN weakness Wasting and fasciculation ↓ tone Hyporeflexia Completion Drug chart Dipstick: glucose Gait + Romberg’s test CN Causes Mainly Sensory DM Alcohol B12 deficiency CRF and Ca (paraneoplastic) Vasculitis Drugs: e.g. isoniazid, vincristine Mainly Motor HMSN / CMT Paraneoplastic: Ca lung, RCC Lead poisoning Acute: GBS and botulism Ix Dipstick: glucose Bloods DM: Glucose, HBA1c EtOH: FBC ± Film, LFTs, GGT CRF: U+E B12, folate Vasculitis: ESR, ANA, ANCA Thyroid disease: TFTs Imaging CXR: exclude paraneoplastic phenomena Other Nerve conduction studies Demyelination → ↓ conduction speed Axonal degeneration → ↓ conduction amplitude Electromyography Genetic: PMP22 gene in CMT Nerve biopsy Mx General MDT: GP, neurologist, specialist nurses, physio, OT Foot care and careful shoe choice Splinting joints can prevent contractures Specific Optimise glycaemic control: DCCT, UKPDS trials Replace nutritional deficiencies Avoid EtOH or other precipitants Vasculitis: steroids and other immunosuppressants Neuropathic pain: amitriptyline, gabapentin GBS: IVIg © Alasdair Scott, 2012 61 Diabetic Neuropathy Charcot-Marie-Tooth Syndrome Examination of the Lower Limbs = Peroneal Muscular Atrophy = Hereditary Motor and Sensory Neuropathy Inspection Examination Evidence of finger pricks from BM monitoring Peripheral vascular disease Charcot joints Inspection Pes cavus Symmetrical distal muscle wasting → claw hand → champagne bottle leg Thickened nerves: esp. common peroneal around fibula Motor Bilateral loss of ankle jerks 2O to sensory neuropathy Mononeuritis multiplex Foot drop Motor High-stepping gait: foot drop Weak foot and toe dorsiflexion Absent ankle jerks Sensory Distal sensory loss in stocking distribution Completion Examine the fundi Examine the upper limbs and cranial nerves Sensory neuropathy Mononeuritis multiplex CN3 CN6 Ulnar nerve Urine dip: glucose, proteinuria Pain: esp. @ night Glycaemic control Complications of insulin Other micro- and macro-vascular complications Pathophysiology Metabolic: glycosylation, ROS, sorbitol accumulation Ischaemia: loss of vasa nervorum Urine: glucose, ACR Blood Glucose HbA1c U+E Rx Viva Hx Family Hx Group of inherited motor and sensory neuropathies Hx Ix Variable loss of sensation in a stocking distribution Pathophysiology Viva Sensory MDT: GP, endocrinologist, neurologist, DNS Good glycaemic control Amitriptyline, Gabapentin Capsaicin cream Femoral Neuropathy / Amyotrophy Painful asymmetric weakness and wasting of quads c̄ loss of knee jerks Dx: nerve conduction and electromyography HMSN1 Commonest form Demyelinating AD mutation in the peripheral myelin protein 22 gene HMSN2 Second commonest form Axonal degeneration Autosomal dominant Ix Nerve conduction studies HMSN1: demyelination → ↓ conduction velocity HMSN2: axonal degeneration → ↓ amplitude Genetic testing HMSN1: Peripheral myelin protein 22 (PMP22) gene Mx: Supportive MDT: GP, neurologist, specialist nurses, physio, OT Foot care and careful shoe choice Orthoses: e.g. ankle braces Autonomic Neuropathy Postural hypotension – Rx: fludrocortisone Gastroparesis → early satiety, GORD, bloating Diarrhoea – Rx: codeine phosphate Urinary retention ED © Alasdair Scott, 2012 62 Myasthenia Gravis GBS Examination Classification AIDP: acute autoimmune demyelinating polyneuropathy Miller-Fisher: ophthalmoplegia + ataxia + areflexia Inspect Thymectomy scar Eyes Bilateral ptosis: worse on sustained upward gaze Complex ophthalmoplegia Pathophysiology Molecular mimicry: Abs x-react c̄ ganglioside Bacteria: C. jejuni, mycoplasma Viruses: CMV, EBV Facial Movements Myasthenic snarl on smiling Voice Nasal Deterioration: ask pt. to count to 50 Features Symmetrical ascending flaccid paralysis Sensory disturbance: paraesthesia Autoimmune neuropathy: labile BP Limbs Fatiguability: repeatedly flap arm Completion Assess respiratory muscle function: spirometry (FVC) Viva Ix Abs: Anti-AChR, Anti-MuSK EMG: ↓ response to titanic train of impulses Tensilon test: improvement c̄ edrophonium (anticholinesterase) TFTs: Graves in 5% CT mediastinum: thymoma in 10% Associations <50, female AI disease: DM, RA, Graves, SLE >50, male Thymoma Mx Acute Plasmapheresis or IVIg Monitor FVC: consider ventilation Ix Evidence of infection: e.g. stool MC+S Anti-ganglioside Abs LP: ↑↑ CSF protein Nerve conduction studies: demyelination Mx Supportive Airway / ventilation: ITU if FVC < 1.5L Analgesia: NSAIDs, gabapentin Autonomic: may need inotropes, catheter Antithrombotic: TEDS, LMWH Immunosuppression IVIg Plasma exchange Physiotherapy Prevent flexion contractures Prognosis 85% complete recovery 10% unable to walk alone at 1yr 5% mortality Chronic Pyridostigmine Immunosuppression: steroids and azathioprine Thymectomy: benefit even if no thymoma LEMS Abs vs. VGCC Often paraneoplastic: e.g. SCLC Lower limb girdle weakness Weakness improves on repetitive testing Bilateral Ptosis MG Myotonic dystrophy Congenital Senile Bilateral Horner’s (rare) © Alasdair Scott, 2012 63 Facial Nerve Palsy Examination Viva Inspection Hx Symptoms Eye dryness Drooling ↓ taste: ageusia Hyperacusis Cause Onset: rapid in Bell’s Rash or external ear pain Hx of DM SOL: headache, nausea Other CN: vertigo, tinnitus, diplopia Limb weakness Rash, fever Unilateral facial droop Absent nasolabial fold ± absent forehead creases ? scar or parotid mass Ear rash Weakness Raising eyebrows: frontalis Screwing up eyes: orbicularis oculi Bell’s sign: eyeball rolls back on closure Smiling: orbicularis oris UMN or LMN? UMN → sparing of frontalis and orbicularis oculi Due to bilateral cortical representation Other CN Involvement NB. other CN involvement seen in 8% of Bell’s Palsy Pons → Millard-Gubler Syndrome CN6 nucleus → ipsilateral lateral rectus palsy CN7 nucleus → ipsilateral LMN facial palsy Corticospinal tracts → contralateral hemiparesis CPA: ipsilateral CN 5, 6, 7 and 8 palsies and cerebellar signs Facial anaesthesia + absent corneal reflex LR palsy LMN facial nerve palsy SNHL DANISH Auditory Canal → CN8 Completion If UMN: likely stroke Examine limbs for ipsilateral spasticity Examine visual fields: ipsilateral homonymous hemianopia If LMN: likely Bell’s Palsy Look in ears Examine PNS, CN and cerebellar function Test taste Causes 75% Idiopathic Bell’s Palsy Supranuclear: vascular, MS, SOL Pontine: vascular, MS, SOL CPA: vestibular Schwannoma, meningioma, 2O Intra-temporal: Ramsay Hunt, Cholesteatoma, trauma Infra-temporal: Parotid tumour, trauma Systemic Neuropathy: DM, Lyme, Sarcoidosis Pseudopalsy: MG Bilateral Facial Nerve Palsy Bilateral Bell’s Sarcoidosis GBS Lyme Pseudopalsy: MG, Myotonic dystrophy © Alasdair Scott, 2012 Aguesia and Hyperacusis Chorda tympani and nerve to stapedius arise just distal to geniculate ganglion w/i the temporal bone. Loss of these functions indicates a proximal lesion Common in Ramsay Hunt: VZV @ geniculate ganglion Ix Urine Dip: glucose Bloods DM: glucose, HbA1c Serology: VZV and Lyme Abs: anti-ACh receptor Imaging MRI posterior cranial fossa Other Pure tone audiometry LP: exclude infection Nerve conduction studies May predict delayed recovery when performed @ 2wks. Mx Prednisolone w/i 72hrs Valaciclovir if VZV suspected Protect eye Dark glasses Artificial tears Tape closed @ night Prognosis Incomplete paralysis: recovers completely w/i wks Complete: 80% get full recovery Remainder have delayed recovery or permanent neurological / cosmetic abnormalities. Complications: Aberrant Neural Connections Synkinesis: e.g. blinking causes up-turning of mouth Crocodile tears: eating stimulates unilateral lacrimation, not salivation 64 Facial Nerve Palsy: Key Causes Facial Anaesthesia Bell’s Palsy Examination 75% of Facial Palsies Dx of exclusion Inflammatory oedema → compression of CNVII in narrow facial canal Probably of viral origin (HSV1) Features Sudden onset Complete LMN facial palsy Ageusia: corda tympani Hyperacusis: stapedius Assoc. c̄ other CN involvement in 8% Ramsay Hunt Syndrome American neurologist James Ramsay Hunt in 1907 Reactivation of VZV in geniculate ganglion of CNVII Features Preceding ear pain or stiff neck Vesicular rash in auditory canal ± TM, pinna, tongue, hard palate (no rash = zoster sine herpete) Ipsilateral facial weakness, ageusia and hyperacusis May affect CN8 → vertigo, tinnitus, deafness Mx If Dx suspected give valaciclovir and prednisolone w/i first 72h ↓ absent sensation in trigeminal distribution Note modality Note which trigeminal branch Weak masseter and temporalis Jaw jerk Brisk: UMN Absent: LMN Loss of corneal reflex Viva Causes Supranuclear Demyelination Infarct SOL Nuclear CPA lesion: c̄ other CN palsies Lateral medullary syndrome: loss of pain and temp Peripheral: mononeuropathy DM, sarcoid, vasculitis Cavernous sinus Ophthalmic and maxillary divisions Bilateral Prognosis Rxed w/i 72h: 75% full recovery Otherwise: 1/3 full recovery, 1/3 partial, 1/3 poor Cholesteatoma Locally destructive expansion of stratified squamous epithelium within the middle ear. Usually 2O to attic perforation in chronic suppurative OM Presentation Foul smelling white discharge Vertigo, deafness, headache, pain, facial paralysis Appears pearly white c̄ surrounding inflammation Complications Deafness (ossicle destruction) Meningitis, cerebral abscess Management Surgery Lyme Disease Borellia burgdorferi Early Local: Erythema migrans + systemic malaise Late Disseminated CN palsy: esp. facial palsy Polyneuropathy Meningoencephalitis Arthritis Myocarditis Heart block © Alasdair Scott, 2012 65 Abnormal Pupils Horner’s Syndrome Examination Face: PEAS Ptosis: partial (superior tarsal muscle) Enophthalmos Anhydrosis Small pupil NO ophthalmoplegia Neck Scars Central lines Carotid endarterectomy Hands Complete claw hand + intrinsic hand weakness ↓ / absent sensation in T1 Completion Cerebellum, CNs and PNS Differential Central MS Wallenberg’s Pre-ganglionic (neck) Pancoast’s tumour: T1 nerve root lesion Trauma: CVA insertion or carotid endarterectomy Post-ganglionic Cavernous sinus thrombosis O Usually 2 to spreading facial infection via the ophthalmic veins CN 3, 4, 5, 6 palsies Oculomotor Nerve Palsy Features Complete ptosis: LPS Eye points down and out: unopposed SOB and LR Dilated pupil, doesn’t react to light: unless spared Ophthalmoplegia and diplopia Medical vs. Surgical Parasympathetic fibres originate in Edinger Westphal Nucleus and run on periphery of oculomotor nerve. Receive rich blood supply from external pial vessels These fibres are affected late in ischaemic causes (medical) but early in compression (surgical). Medical Mononeuritis: e.g. DM MS Infarction in midbrain Weber’s: CN3 palsy + contralateral hemiplegia Migraine Surgical ↑ ICP: transtentorial herniation compresses uncus Cavernous sinus thrombosis Posterior communicating artery aneurysm: painful © Alasdair Scott, 2012 Holmes-Adie (Myotonic) Pupil Dilated pupil that has no response to light and sluggish response to accommodation. ↓ or absent ankle and knee jerks Benign condition, more common in young females Argyll Robertson Pupil Features Small, irregular pupils Accommodate but doesn’t react to light Atrophied and depigmented iris Extras Offer to look for sensory ataxia: tabes dorsalis Dip the urine: glucose Causes Quaternary syphilis: RPR or TPHA DM RAPD / Marcus Gunn Pupil Features Minor constriction to direct light Dilatation on moving light from normal to abnormal eye. Features of Optic Atrophy ↓ visual acuity ↓ colour vision: esp. red desaturation Central scotoma Pale optic disc RAPD Causes: CAC VISION Commonest: MS and glaucoma Congenital Leber’s hereditary optic neuropathy Epi: mitochondrial, onset 20-30s PC: attacks of acute visual loss, sequential in each eye ± ataxia and cardiac defects HMSN / CMT Friedrich’s ataxia DIDMOAD Alcohol and Other Toxins Ethambutol Lead B12 deficiency Compression Neoplasia: optic glioma, pituitary adenoma Glaucoma Paget’s Vascular: DM, GCA or thromboembolic Inflammatory: optic neuritis – MS, Devic’s, DM Sarcoid / other granulomatous Infection: herpes zoster, TB, syphilis Oedema: papilloedema Neoplastic infiltration: lymphoma, leukaemia 66 Visual Fields Visual Pathway Retina Optic nerve Optic chiasm: nasal fibres decussate Optic tract LGN of thalamus Optic radiation Superior field: temporal Inferior field: parietal Visual cortex Ix Perimetry CT/ MRI brain Homonymous Hemianopia Retrochiasmatic Greater defect = larger lesion or closer to chiasm Contralateral Extras Examine for ipsilateral hemiparesis Examine for cerebellar signs Right: test for neglect Left: test for aphasia Bitemporal Hemianopia Chiasmatic lesion Extras Take Hx and examine for features of endocrine disease Prolactinoma Acromegaly Cushing’s Causes Pituitary tumour Compresses from below → descending visual loss Craniopharyngioma Compresses from above → ascending visual loss Benign suprasellar tumour originating from Rathke’s pouch. Calcified as arises from odontogenic epithelium Monocular Blindness No vision in one eye Check counting fingers, movement and light perception Lesion proximal to optic chiasm Eye itself: cornea, vitreous, retina Optic nerve: i.e. optic neuropathy Hx Speed of onset Vascular risk factors Vascular Territory MCA Stroke MCA supplies the optic radiation in the temporal and parietal lobes Hemiparesis Higher cortical dysfunction: neglect, aphasia PCA Stroke PCA supplies occipital lobe and visual cortex Homonymous hemianopia c̄ macula sparing Branch of MCA supplies part of visual cortex No hemiparesis May have cerebellar signs Causes Vascular: ischaemia or haemorrhage SOL: tumour, abscess Demyelination: MS © Alasdair Scott, 2012 67 Ophthalmoplegia Examination Internuclear Ophthalmoplegia H Test: Left Eye Examination Failure of ipsilateral adduction Nystagmus in the contralateral abducting eye May be bilateral Convergence preserved Neurophysiology To maintain convergent gaze, MLF yokes together the nuclei of CN3 and 6. Pontine centre for lateral gaze initiates movement and outputs to CN3 nucleus and CN6 nucleus via the MLF Failure of adduction is ipsilateral to MLF lesion Causes Key Elements Inspect the eye Ptosis Alignment Pupil sizes Ask pt. to tell you if they get double vision Use H to test movements noting: Ophthalmoplegia Diplopia: do cover test Nystagmus Saccades: vertical and horizontal Complex Ophthalmoplegia Dx of exclusion Ophthalmoplegia doesn’t fit a single pattern Causes Diplopia Maximal in direction of pull of affected muscle Cover test: outer image disappears c̄ affected eye Simple Palsies 3rd Nerve Complete ptosis Down and out in rest position ± dilated, non-reactive pupil Diplopia maximal: in and up MS Infarct: ischaemic or haemorrhagic Syringomyelia Phenytoin toxicity Ix DM: Mononeuritis multiplex MS Myasthenia gravis Thyrotoxicosis Urine dip: glucose Bloods DM: glucose + HbA1c TFT: ↓TSH MG: anti-AChR antibodies MRI Brain Plaques in the periventricular white matter 4th Nerve Slight head tilt: ocular torticollis Appear normal in rest position Failure to depress eye in adduction Diplopia maximal down and in Ask if pt. has trouble walking down stairs 6th Nerve Appear normal in resting position Failure to abduct Diplopia maximal in abduction Commonly a false localising sign of ↑ ICP: contralateral lesion Causes Central NS: MS, vascular, SOL Peripheral NS: DM (mononeuritis), compression, trauma Ix Urine dip: glucose Bloods: glucose + HbA1c Imaging: MRI brain © Alasdair Scott, 2012 68 Hearing Loss Examination USE a 512Hz TUNING FORK Rinne’s Test Positive: AC > BC Negative: BC > AC True: conductive deafness False: complete SNHL Weber’s Test Normal: central SNHL: lateralises to normal ear Conductive: lateralises to abnormal ear Causes Conductive Impaired conduction anywhere between auricle and round window. Canal obstruction: wax, FB TM perforation: trauma, infection Ossicle defects: otosclerosis, infection Fluid in middle ear SNHL Defects of cochlea, cohlear N. or brain Congenital Alports: SNHL + haematuria Jewell-Lange-Nielsen: SNHL + long QT Acquired Presbyacussis Drugs: gentamicin, vancomycin Infection: meningitis, measles Tumour: vestibular schwannoma © Alasdair Scott, 2012 69 Speech Examination Abnormalities Aims to Test Dysarthria Dysphonia: impaired production of voice sounds Dysarthria: impaired articulation of sound → words Dysphasia: impairment of language Quick Screen Ask: How did you get here today? Listen to volume, rhythm, clarity and content Any striking abnormality? Dysarthria Lesion in tongue, lips, mouth or disruption of NM pathway Pseudo-bulbar Bilateral UMN lesions → spastic dysarthria Difficulty c̄ lingual sounds “Hot Potato speech” Brisk jaw jerk Causes CVA: e.g. bilateral internal capsule infarcts MS MND Repetition Yellow lorry: test lingual sounds Bulbar Baby hippopotamus: labial sounds Unilateral LMN weakness The Leith police dismisseth us: multiple processes Palatal weakness → nasal “Donald Duck” speech Count to thirty: muscle fatigue in MG Causes Brainstem infarct Dysphonia MND Voice: quiet or hoarse GBS Cough: bovine Say Ahh: vocal cord tension Cerebellar Slurred, drunken speech Dysphasia Name three objects: nominal dysphasia Three stage command: receptive dysphasia Avoid visual clues by instructing from behind Repeat sentence: Today is Thursday Tests for conductive dysphasia Extras Dominant parietal lobe lesions → dyslexia, dysgraphia and dyscalcula. Read a paragraph: dyslexia Write a sentence: dysgraphia Dysphonia Hoarse voice Bovine cough Cause Local cord pathology: laryngitis, tumour, nodule Recurrent laryngeal N. palsy Dysphasia Expressive Broca’s area: frontal lobe Non-fluent speech Comprehension intact Receptive Wernicke’s Area: temporal lobe Fluent but meaningless speech Comprehension impaired Conductive Damage to arcuate fasciculus connecting Broca’s and Wernicke’s areas. Comprehension intact Unable to repeat words or phrases © Alasdair Scott, 2012 70 Shorts Contents Psoriasis .................................................................................................................................................................................. 72 Dermatitis ................................................................................................................................................................................. 73 Cutaneous Manifestations of DM............................................................................................................................................. 73 Skin Malignancy ....................................................................................................................................................................... 74 Neurofibromatosis .................................................................................................................................................................... 75 Tuberous Sclerosis .................................................................................................................................................................. 75 Spot Skin Diagnoses ............................................................................................................................................................... 76 Rheumatoid Hands .................................................................................................................................................................. 77 RA: Key Facts .......................................................................................................................................................................... 78 Systemic Sclerosis ................................................................................................................................................................... 79 Systemic Lupus Erythematosus .............................................................................................................................................. 80 Ankylosing Spondylitis ............................................................................................................................................................. 81 Marfan’s Syndrome .................................................................................................................................................................. 82 Tophaceous Gout .................................................................................................................................................................... 83 Osteoarthritis............................................................................................................................................................................ 83 Thyrotoxicosis .......................................................................................................................................................................... 84 Hypothyroidism ........................................................................................................................................................................ 85 Acromegaly .............................................................................................................................................................................. 86 Cushing’s Syndrome ................................................................................................................................................................ 87 Addison’s Disease ................................................................................................................................................................... 88 Steroids: Key Facts .................................................................................................................................................................. 89 Neuro Shorts ............................................................................................................................................................................ 89 © Alasdair Scott, 2012 71 Psoriasis Examination Viva Skin Hx Symmetrical, well-defined salmon-pink plaques Silvery, micaceous scale Locations Extensors Behind ears Scalp Umbilicus Sites of trauma: Kobner phenomenon Skin staining from Rx Coal tar: brown Dithranol: purple Nails Discolouration Pitting Onycholysis Subungual hyperkeratosis Joints Evidence of inflammatory arthropathy Completion Inspect common areas and assess joints Assess for Auspitz sign Pinpoint bleeding on scraping scale Hx Differential Psoriasis Bowen’s Disease Lichen planus Dermatitis Other Differentials Onycholysis Psoriasis Fungal infection Trauma Thyrotoxicosis Pitting Psoriasis Fungal infection Lichen planus Kobner Phenomenon Psoriasis Lichen planus Viral warts Vitiligo Sarcoid © Alasdair Scott, 2012 Symptoms Itch Arthritis Triggers Smoking Stress Injury Drugs: β-B, EtOH Treatments Topical Phototherapy Systemic Pathogenesis T4 T cell-driven hypersensitivity reaction Hyperkeratosis Parakeratosis (nuclei in the stratum corneum) Intra-epidermal microabscess (of Munro) Subtypes Guttate Drop-like lesions on trunk Commoner in children after Strep infection Pustular: generalised or palmo-plantar Erythroderma Flexural: not scaly Psoriatic Arthritis Seronegative arthritis develops in 10-40% Asymmetric oligoarthritis Distal arthritis Symmetric polyarthritis: may mimic RA Spondylitis Arthritis mutilans Mx General MDT: GP, dermatologist Avoid precipitants: EtOH, β-B, smoking, stress Topical Emollients: epaderm, dermol, diprobase Steroids: betometasone Vit D analogues: calcipotriol Combination: Dovobet Coal Tar: inpt. Use mainly Dithranol Phototherapy PUVA Narrow-band UVB Systemic Cytotoxics: ciclosporin, methotrexate Retinoids: acetretin Biologics: anti-TNF 72 Dermatitis Cutaneous Manifestations of DM Examination Examination Skin Hands Erythematous lichenified patches Predominantly flexors Excoriations Painful fissures: esp. hands Differential Just hands: irritant contact dermatitis Atopic eczema Discoid: well-demarcated patches on trunk and limbs Seborrhoeic dermatitis Viva Hx Atopy: asthma, hay fever, allergies Patch testing: house dust mites, animal dander Effect of diet Cheiroarthropathy Tight waxy skin that limits finger extension Prayer sign Granuloma annulare Flesh-coloured papules in annular configuration Usually on dorsum of hand 10% assoc. c̄ DM Glucose skin prick testing marks Injection Sites Shoulders, abdomen and thighs Lipodystrophy Shins Necrobiosis lipoidica diabeticorum Well-demarcated waxy, bruise-like plaques Prominent blood vessels 90% female Feet Mx General MDT: GP, dermatologist Avoid precipitants Adjuvants Antihistamines: pruritis Abx: 2O infection Charcot’s Joints Ulcers: heel, metatarsal heads, digits Other Infections: candida, cellulitis Eruptive tendon xanthoma: 2O to hyperlipidaemia Topical Emollients: dermol, epaderm, diprobase Soap substitutes: dermol, epaderm 1st: steroids 2nd: tacrolimus Phototherapy Systemic: only if severe Steroids Ciclosporin © Alasdair Scott, 2012 73 Skin Malignancy BCC Malignant Melanoma Examination Examination Lesions On face in sun-exposed areas Pearly nodule c̄ rolled, telangiectactic edge Pt. Characteristics Fair skin c̄ freckles Blue Eyes Light hair Viva Natural Hx Commonest skin cancer 2O to sun exposure Slow growing locally destructive: “rodent ulcer” Do not metastasise Mx Superficial: curettage Deep: surgical excision ± radiotherapy SCC Examination Lesion Sun-exposed area Ulcerated lesion c̄ everted edge Actinic keratosis: irregular, crusty, warty lesions Bowen’s: red/borwn, scaly plaques Extras Examine regional LNs Examine rest of skin for other lesions Viva Evolution Actinic keratosis → Bowen’s → SCC Risk Factors Sun exposure Immunosuppression: e.g. ciclosporin Genetic: xerodermapigmentosum Chronic trauma: Marjolin’s ulcer Dx Mx Excisional biopsy Lesion Asymmetry Boarder: irregular Colour: non-uniform Diameter > 6mm Evolving / Elevation Extras Regional LNs Fundoscopy Liver NB. Glass ye + ascites: ocular melanoma Viva Risk Factors Sun exposure: esp. when young Low Fitzpatrick skin type ↑ no. of common moles +FH ↑ age Immunosuppression Classification Superficial spreading: 80% Lentigo maligna melanoma: elderly Acral lentiginous: Blacks, soles, palms Nodular: younger, new lesion Amelanotic: delayed Dx Staging Breslow Depth Clark’s Levels Mx Excision biopsy for staging O 2 excision margin depends on stage ± lymphadenectomy ± adjuvant chemo Surgery ± radiotherapy © Alasdair Scott, 2012 74 Neurofibromatosis Tuberous Sclerosis Examination Examination Skin Skin Facial adenoma sebaceum: perinasal angiofibromata Periungual fibromas: hands and feet Shagreen-patch: roughened leathery skin over sacrum Ash-leaf macule: hypopigmented macule on trunk Fluoresce c̄ UV/Wood’s lamp Café-au-lait spots Café-au-lait spots ≥6, >15mm diameter Axillary freckling Neurofibromas: gelatinous, violaceous nodules Eyes Lisch nodules: melanocytic hamartomas of the iris Extras Extras Fundus: retinal phakomas (dense white patches) Lungs: cystic lung disease Abdomen Renal enlargement 2O to cysts Transplanted kidney Signs of phenytoin use (80% epileptic) Gingival hypertrophy Hisutism Visual acuity: optic glioma Back: scoliosis BP: RAS + phaeochromocytoma Palpable nerves + peripheral neuropathy Viva Epidemiology Autosomal dominant NF1 Chr 17 1/2500 NF2 Chr 22 1/35,000 Complications Epilepsy Sarcomatous change: 5% Scoliosis: 5% Learning difficulty: 10% Viva Epidemiology Autosomal dominant Chr 16 Ix Skull films: railroad track calcification CT/MRI brain: tuberous masses in cortex Abdo US: renal cysts Echo: cardiomyopathy Mx MDT: GP and neurologist Excise some neurofibromas Complications Yearly BP and cutaneous review Epilepsy Rx Genetic counselling Differential of Café-au-Lait Spots NF McCune Albright Case-au-lait spots Polyostotic fibrous dysplasia Endocrinopathy → precocious puberty Tuberous Sclerosis © Alasdair Scott, 2012 75 Spot Skin Diagnoses Hereditary Haemorrhagic Telangiectasia Erythema Multiforme = Osler-Weber-Rendu Syndrome Examination Multiple telangiectasia on face, lips and buccal mucosa Cyanosis: large pulmonary AVMs No signs of CREST Differential HHT CREST CLD Ataxia telangiectasia Viva Features Autosomal dominant Multiple telangiectasias AVMs Lungs Liver Brain Complications Haemorrhage Epistaxis GI haemorrhage Haemoptysis SAH High output cardiac failure May have ↑ risk of CRC if SMAD4 mutation Examination Symmetrical targetoid lesions Especially on the extensor surfaces of peripheries Differential of lesions c̄ central clearing EM Discoid eczema Tinea Viva Causes Infections HSV (70%) Mycoplasma Drugs Sulfonamides NSAIDs Allopurinol Penicillin Phenytoin Stevens-Johnson Syndrome and TEN Severe variants of EM Nearly always drug-induced SJS: blistering mucosa TEN: generalised erythema followed by erpidermal necrosis and desquamation Rx: dexamethasone, IVIg Erythema Nodosum Peutz-Jeghers Examination Small pigmented macules on lips, oral mucosa, palms and soles Differential Peutz-Jeghers Carney Complex McCune-Albright Simple freckles Viva Features Autosomal dominant mutation of STK11 gene on Chr 19 Mucocutaneous macules GI hamartomatous polyps Complications GI hamartomas Intussusception GI bleeding Pancreatic endocrine tumours ↑ risk of cancer: esp. CRC (~20% life-time risk) © Alasdair Scott, 2012 Examination Tender, blue/red, smooth shiny nodules Commonly found on shins Can be anywhere c̄ SC fat Older lesions leave a bruise Extras Parotid swelling: sarcoidosis Red, sore throat: streptococcal infection Joint pains, oral ulceration: Behcet’s Viva Causes Systemic disease Sarcoidosis IBD Behcet’s Infection Streptococcal infection TB Drugs Sulphonamides OCP Other skin manifestations of sarcoidosis Red/brown nodules and papules Lupus pernio: brown plaques, commonly on the nose 76 Rheumatoid Hands Hand Examination Viva Look Hx Feel Ix Hands Skin: joint erythema, palmar erythema Joint Swelling: MCPs and PIPs Muscle wasting: interossei, thenar eminence Deformity Surgical Scars: e.g. carpal tunnel release Wrist Elbow: nodules Hot swollen painful joints = active synovitis Move Fixed flexion on prayer position ↓ ROM Function Precision Power Aids Presentation Symmetrical deforming polyarthropathy Signs of active synovitis Signs of cause Rheumatoid nodules Psoriatic plaques Differential Psoriatic arthritis Jacoud’s arthropathy Systemic Examination Skin: steroid use BP and pulse ↑ risk of AF ↑ risk of cardiovascular disease Eyes Epi-/scleritis Keratoconjunctivits sicca Anaemia Neck: x-rays for atlanto-axial sublucxation Heart: pericardial rub Lungs Pulmonary fibrosis Percuss for effusions Pleural rub Abdomen: splenomegaly Urine dip: nephrotic syndrome amyloid or DMARDs) © Alasdair Scott, 2012 Symptoms Early morning stiffness Pain Swelling Affect on life Extra-articular features: aNTI CCP OR RF Treatments tried so far + any complications Bloods FBC: ↓Hb, ↓PMN ↑ESR and ↑CRP Immune RF: +ve in 70% Anti-CCP: 98% specific, 75% sensitive ANA: +ve in 30% HLA-DR3/4 X-Ray Soft tissue swelling Periarticular osteopenia Loss of joint space Periarticular erosions Deformity Mx MDT: GP, physio, OT, rheumatologist, orthopod Conservative Physio OT: aids and splints Medical Analgesia Steroids: IM, PO or intra-articular DMARDS Biologicals Other CV risk Prevention of PUD and osteoporosis Surgical Carpal tunnel decompression Tendon repairs and transfers Ulna stylectomy Arthroplasty 77 RA: Key Facts Extra-Articular Features: aNTI CCP OR RF Nodules Tenosynovitis: de Quervains and atlanto-axial subluxation Immune: vasculitis, amyloidosis, Sjogren’s, AIHA Cardiac: pericarditis ± effusion Carpal tunnel Pulmonary: fibrosis, effusions Ophthalmic: episcleritis, scleritis, Sjogren’s O Renal: nephrosis 2 to amyloidosis Raynaud’s Felty’s: RA + ↓PMN + splenomegaly Rheumatoid Factor Anti-IgG IgM Present in ~70% c̄ RA Also present in ~10% of normal people and in other diseases Sjogren’s: 100% SLE: ≤40% Higher titres associated c̄ More severe disease Erosions Extra-articular manifestations Seronegative RA Anatomy of Rheumatoid Hands Boutonierre’s: rupture of central slip of extensor expansion → PIPJ prolapse through “button-hole” created by the two lateral slips. Swan: rupture of lateral slips → PIPJ hyper-extension DMARDs Atlanto-Axial Subluxation All can → BM suppression Drug Methotrexate Sulfasalazine Hydroxychloroquine Penicillamine Gold Side Effects BM suppression Hepatotoxic Pulmonary fibrosis BM suppression Skin rashes Hepatitis ↓ sperm count Retinopathy Drug-induced lupus Nephrotic syndrome Nephrotic syndrome RA c̄ absence of RFs ~30% of pts are seronegative May have non-classical RFs (e.g. IgG vs. IgG) 40% +ve for anti-CCP Less severe disease c̄ and much less likely to have extra-articular features. Monitor FBC LFTs CXR FBC LFTs Visual acuity Urine Urine Biologicals Indications Severe RA not responding to DMARDs Anti-TNF Screen and Rx TB first: tuberculin skin test, CXR Give c̄ hydrocortisone to ↓ hypersensitivity Agents Infliximab (Remicade) Etanercept (Enbrel) Adalimumab (Humira) SEs Hypersenstivity → rash Opportunistic infection: TB Rheumatoid tenosynovitis → weakening of ligaments supporting the top of the cervical spine Posterior subluxation of the odontoid peg can compress the spinal cord Chronic: progressive spastic tetraparesis Acute: inhibitory impulses via vagus N. can → cardiac arrest Pre-operatively Main risk is during intubation Arrange upper cervical spine radiograph in gentle flexion Anti-CCP Abs Cyclic Citrullinated Peptide Derived from collagen Citrullination of arginine 2O to inflammation Specificity: 98% Sensitivity: 75% American College of Rheumatology Criteria 4/7 of Morning stiffness >≥1h Arthritis in 3+ joint areas Arthritis of the hands Symmetrical Rheumatoid nodules +ve RF Radiographic changes B-cell Depletion: Rituximab (anti-CD20 mAb) Screen and Rx TB first: tuberculin skin test, CXR Opportunistic infections TB Viral reactivation: Hep B, PML © Alasdair Scott, 2012 78 Systemic Sclerosis Examination Hx Symptoms Swallowing difficulty or reflux Hands change colour in the cold Shortness of breath Hypertension Arthralgia Hands Scleroderma Tight skin Can you move skin between your fingers? Sclerodactyly Calcinosis Raynaud’s phenomenon → ulceration Face Beaked nose: “nasal skin tethering” Microstomia Ask pt. to open and close mouth Perioral furrowing Telangiectasia En coup de sabre: scar down central forehead Extras BP: HTN Lungs: pulmonary fibrosis Cardiac: pulmonary HTN ↑ JVP Parasternal heave Loud P2 Peripheral oedema and ascites Morphea: patches of sclerotic skin Localised scleroderma Completion Hx Extra features Classification Localised: morphea Systemic Diffuse (30%) Limited (70%): including CREST Limited Distribution limited to below elbows and knees and face Slow progression: yrs Pulmonary HTN in ~15% CREST Calcinosis Raynaud’s phenomenon Esophageal dysmotility Sclerodactlyly Telangiectasia Diffuse Widespread cutaneous and early visceral involvement Rapid progression: months Ix Urine GN: proteinuria and haematuria ECG Arrhythmias RV strain Bloods FBC: anaemia U+E: renal impairment Abs ANA: +ve in 90% Centromere: limited (80%) Scl70 (topoisomerase): diffuse (70%) Imaging Hand radiographs: calcinosis CXR: fibrosis HRCT: fibrosis Echo: pulmonary HTN Other Lung function tests: restrictive pattern Ba swallow: dysmotility Mx MDT: GP, rheumatologist, pulmonologist, cardiologist Specific Immunosuppression used for organ involvement or progressive skin disease. Raynaud’s Gloves and hand-warmers CCBs: e.g. nifedipine Severe: prostacyclin infusion Renal Aggressive blood pressure control ACEi GI PPI for reflux Pulmonary Hypertension Sildenafil Bosentan: dual endothelin receptor antagonist Prognosis 50% 5 year survival Mortality: respiratory failure and renal impairment © Alasdair Scott, 2012 79 Systemic Lupus Erythematosus Examination Viva Face Hx Malar “butterfly” rash: spares nasolabial folds Discoid rash ± scarring Hyperkeratotic papules Oral ulceration Anaemia Systemic: fever, wt. loss, fatigue Photosensitivity rashes Arthralgia Features Multisystem inflammatory disease characterised by a T3 hypersensitivity reaction against circulating immune complexes. F>>M = 9:1 ↑ in Afro-Caribbeans and Asians Hands Vasculitic lesions: nail fold infarcts Raynaud’s phenomenon: digital ulceration Jacoud’s arthropathy Mimics RA Due to tendon contractures Reducible on extension Skin Purpura Livedo reticularis Extras Eyes: keratoconjunctivitis sicca Lungs Pleural rub Pleural effusion Fibrosis Cardio: pulmonary HTN Renal HTN Dipstick for nephrotic syndrome Neurology Focal neurology Chorea Ix Urine dip GN: proteinuria, haematuria Bloods FBC: anaemia U+E: GN ESR Abs ANA: 100% dsDNA: 60% sensitive but very specific Anti-cardiolipin and lupus anticoagulant Complement Disease Activity ↑ ESR ↑ CRP suggests infection ↓ C3, C4 ↑ dsDNA titre Mx MDT: GP, rheumatologist in specialist SLE clinics Mild disease: cutaneous and joints only Topical corticosteroids Sun cream Hydroxychloroquine Moderate disease: + organ involvement Prednisolone Azathioprine Severe Disease AIHA, nephritis, pericarditis, CNS disease High-dose methylprednisolone Cyclophosphamide © Alasdair Scott, 2012 80 Ankylosing Spondylitis Examination Viva Back Hx Thoracic kyphosis + neck hyperextension “Question mark posture” ↓ ROM throughout spine Protruberent abdomen: diaphragmatic breathing Symptoms Back pain: relieved by exercise Morning stiffness Anterior chest pain: costochondritis Eye pain Shortness of breath Cause Rashes Diarrhoea Tests of Movement ↑ occiput to wall distance: >5cm Schober’s Test: <5cm ↓ chest expansion: <5cm Measure @ nipples Tests for Sacroiliitis Direct pressure Sacroiliac stretch Pain on adduction of hip, c̄ hip and knee flexed Extras Anterior uveitis Apical pulmonary fibrosis Aortic regurgitation Achilles tendonitis Psoriatic plaques: psoriasis can → spondylitis Completion ECG: AV block (10%) Dipstick: proteinuria in amyloidosis Hx Differential Ankylosing spondylitis Psoriatic arthritis Other seronegative spondyloarthropathy Ix ECG AV block Bloods FBC: anaemia ↑ ESR ↑ CRP Test for HLA-B27 allele (+ve in 95%) Imaging Spine Sacroileitis: sclerosis, erosions Bamboo spine Syndesmophytes Ligament calcification Periosteal bone formation CXR Fibrosis Other DEXA scan Osteoporosis in 60% Mx Conservative Exercise and physio Medical NSAIDs Local steroid injections Anti-TNF in severe disease Bisphosphonates for osteoporosis Surgery Hip replacement if involved Spinal osteotomy: rare © Alasdair Scott, 2012 81 Marfan’s Syndrome Examination Viva General Hx Hands Genetics Tall c̄ long arms Arm-span > height Arachnodactyly: encircle waste c̄ hands Hyperextensible joints Pulse Radio-radio delay: coarctation Collapsing Face Cardiac problems Family history Autosomal dominant Chromosome 15 Defect in the fibrillin protein Ix High-arched palate Lens dislocation: upwards Chest Pectus carinatum or excavatum Scars from cardiothoracic surgery Murmur AR: pitched early diastolic MVP: mid-systolic click, late systolic murmur Completion Formally compare arm-span to height Palpate for thyroid mass Hx Phaeo: episodic headache, sweating, tachycardia Echo: aortic root dilatation Genetic testing Mx Surveillance Monitoring of aortic root size c̄ yearly TTE Rx β-B and ACEi: slow aortic root dilatation Pre-emptive aortic root surgery: prevent dissection / rupture Screen family members Differential Marfan’s MEN2b Homocystinuria ↓ IQ Downward lens dislocation © Alasdair Scott, 2012 82 Tophaceous Gout Osteoarthritis Examination Examination Asymmetric oligoarthritis of small joints of hands and feet Esp. 1st MTP Gouty tophi: joints, ears, tendons ↓ ROM and function Extras BMI: obesity HTN Drug chart: thiazides, cytotoxics LNs: lymphoproliferative disorder CRF: renal replacement therapy Differential Pseudogout Septic arthritis Calcinosis from CREST Elderly pt. Walking stick Hands Asymmetrical distal interphalangeal joint deformity Fixed flexion Squaring of the CMC joint of the thumb Heberden’s nodes: distal Bouchard’s nodes: proximal Disuse atrophy ↓ function Extras Other joint involvement and scars Differential Viva OA Distal inflammatory arthritis: e.g. psoriatic Hx General Drug Hx Diet: beef, pork, lamb, seafood EtOH CV risk: smoking, lipids, BP, DM, FH Cause Urate excess Drugs Drinking EtOH Diet: purine rich foods Decreased excretion: CRF Death of cells: leukaemia, lymphoma, psoriasis Viva Hx Pain and stiffness Esp. after rest Worse @ end of day Night pain Loss of function ADLs Other joint involvement Social circumstances Radiographic Features Ix Bloods Lipids Glucose Urate levels X-ray Punched-out peri-articular erosions Joint aspiration Negatively birefringent needle-shaped crystals Mx Acute Remove cause and ↑ hydration 1st: indomethacin or diclofenac 2nd: colchicine 3rd: steroids Loss of joint space Osteophytes Subchondral sclerosis Subchondral cysts Deformity Mx Conservative ↓ wt. if affects wt. bearing joints Physio OT Social services if unable to perform ADLs Medical Paracetamol NSAIDs ± weak opioids Surgical Joint arthroplasty Chronic Modify precipitants Allopurinol: XO inhibitor Mx cardiovascular risk © Alasdair Scott, 2012 83 Thyrotoxicosis Examination Viva General Hx Symptoms of thyrotoxicosis Heat intolerance, sweating ↑ appetite, ↓wt. Diarrhoea Anxious, irritable Visual problems, eye pain Oligomenorrhoea Triggers Child-birth Stress Infection Other AI disease Vitiligo T1DM Addison’s Thin Anxious Periphery Thyroid acropachy Palmer erythema Hot, sweaty palms Tachycardia or AF Pre-tibial myxoedema Proximal myopathy Neck Smooth, diffuse goitre May have bruit Eyes Ix Non-specific Lid-lag Lid retraction (↑ tone of sup. tarsal muscle) Bloods FBC: may be mild anaemia and neutropenia in Graves’ TFTs: ↓TSH, ↑fT4, ↑fT3 Abs: TSH, TPO Other: ↑ Ca, ↑ ESR, glucose (exclude DM) Graves’ Soft tissue swelling and Chemosis Exophthalmos Ophthalmoplegia: esp. upgaze Exposure keratopathy Optic atrophy Completion Cardiovascular examination: risk of heart failure Examine the eyes for evidence of optic atrophy Observation chart Hx Differential Graves’ Thyrotoxic phase of a thyroiditis Simple colloid goitre NB. Pts. c̄ Graves’ are often hyperthyroid but may become eu- or hypo-thyroid. Imaging CXR: retrosternal goitre US: assess for nodularity Radionucleotide scan (Tc or I) ↑ uptake in Graves’ ↓ uptake in thyroiditis Mx Medical Propranolol Carbimazole Titrate according to TFTs, or Block and replace: ↓ risk of hypothyroidism Treat for ~12-18mo: ~30% remain euthyroid Radioiodine CI: pregnancy, around children SE May worsen thyroid eye disease Most pts. become hypothyroid Thyroidectomy SE Haematoma Recurrent laryngeal nerve injury Hypoparathyroidism Hypothyroidism Thyroid Eye Disease Stop smoking: worsens the prognosis Symptomatic: artificial tears, dark glasses, elevate bed Severe High-dose steroids Surgical decompression © Alasdair Scott, 2012 84 Hypothyroidism Examination Viva General Hx Large body habitus Depressed mentation Gruff voice Symptoms Cold intolerance Appetite but ↑ wt. Constipation Menorrhagia Lethargy, tiredness Depression Cause Neck pain Iatrogenic Drugs Radioiodine Surgery Associated AI disease Vitiligo T1DM Addison’s Skin Dry skin Other AI disease: vitiligo Periphery Cool Bradycardia Proximal myopathy Slow-relaxing reflexes Face Coarse, puffy looking features “Peaches-and-cream” complexion Loss of lateral eyebrows Xanthelasma Thin hair Neck Goitre Thyroidectomy scar Completion Cardiac exam: evidence of failure Neurological exam Carpal tunnel syndrome Ataxia Observation chart Hx Differential No goitre Atrophic thyroiditis Radioactive iodine Drugs: e.g. amiodarone Goitre: Hashimoto’s Scar: thyroidectomy Other Differentials Smooth Goitre Simple colloid goitre Hashimoto’s Graves’ Ix Bloods FBC: ↑MCV ± macrocytic anaemia U+E: ↓Na TFTs: ↑TSH, ↓fT4 Abs: TPO Other: ↑ cholesterol, glucose (exclude DM) CXR Pericardial effusion CCF Mx Thyroxine Titrate to clinical response and TSH If elderly introduce slowly to prevent precipitation of angina / MI. Clinical improvement takes ~2wks Causes of Hypothyroidism Primary Autoimmune: 1O atrophic and Hashimoto’s thyroiditis Iatrogenic: rugs, surgery radioiodine Iodine deficiency: e.g. Derbyshire neck Genetic: thyroid agenesis Secondary Hypopituitarism (v. rare) Nodular Goitre Multinodular goitre Multiple adenomas Solitary nodule Dominant nodule of a multinodular goitre Adenoma Malignancy © Alasdair Scott, 2012 85 Acromegaly Examination Viva Hands Hx Symptoms Headaches Problems c̄ vision Change in appearance Hat and ring size ↑ Pain or paraesthesia in hands Snoring, stop breathing when sleeping (OSA) Associations Polyuria and polydipsia Chest pain, SOB, palpitations Change in bowel habit Cardiac risk factors Spade-like: compare directly c̄ your own Tight rings ↑ skin fold thickness Boggy, sweaty palms: if active Thenar wasting + loss of sensation: carpal tunnel syn. Arms ↑BP Face Coarse facial features: large nose, big ears Prominent supra-orbital ridges Macroglossia Widely spaced teeth: “show me your gums” Prognathism: inspect from side Look up nose for scars Extras Eyes: bitemporal hemianopia Neck: goitre + ↑ JVP Armpits: acanthosis nigricans Abdomen: organomegaly Myopathy: stand from chair w/o using hands Completion Urine dip: glycosuria ECG: LVH and ischaemia See any previous photographs Hx Macroglossia Acromegaly Amyloidosis Hypothyroidism Down’s syn. Acanthosis Nigricans Endocrine Obesity and metabolic syndrome DM Cushing’s Acromegaly Malignancy Gastric Ca Pancreatic Ca Ix Urine dip: glycosuria ECG: LVH, ischaemia Bloods ↑ IGF-1 Glucose tolerance test: non-suppression of GH Other pituitary hormones: TFT, PRL, testosterone Glucose Imaging CXR: cardiomegaly MRI of pituitary fossa: pituitary adenoma Other Visual perimetry Complications IGT and DM Cardiovascular disease: leading cause of death CRC Mx General MDT: GP, endocrinologist, neurosurgeon CV risk 1st line: trans-sphenoidal excision Complications Meningitis Diabetes inspidus Panhypopituitarism 2nd line: medical therapy Somatostatin analogues: octreotide GH antagonist: pegvisomant Da agonists: cabergoline 3rd line: radiotherapy Follow upyYearly Bloods: GH, PRL Visual fields ECG ± MRI head © Alasdair Scott, 2012 86 Cushing’s Syndrome Examination Viva Hands Hx Thin skin: compare c̄ your own Evidence of cause: e.g. RA Symptoms Headaches Visual disturbance Wt. gain Bruising Cause Steroid use Smoking Arms BP Face Moon face: “Cushingoid facies” Acne Hirsutism Abdomen Central obesity Purple striae Extras Proximal myopathy: stand from sitting Back Inter-scapular fat pad Palpate spine for tenderness (crush #) Kyphosis Completion Urine dip: glycosuria Visual fields: bitemporal hemianopia Respiratory exam: wheeze, fine crackles Significant Negative Pigmentation Signs of cause: RA, clubbing, COPD Differential Cushing’s syndrome: effects of ↑ corticosteroids Cushing’s disease Bilateral adrenal hyperplasia 2O to ACTHsecreting pituitary tumour Usually a basophilic microadenoma Causes ACTH-independent Steroids: commonest by far Adrenal adenoma / carcinoma / hyperplasia Carney complex ACTH-dependent Cushing’s disease SCLC Ix Urine dip: glycosuria Confirm ↑ cortisol 24h urinary free cortisol Loss of diurnal variation: ↑ midnight cortisol Low dose-dexamethasone suppression test Investigate Cause ACTH levels ↑: pituitary adenoma or ectopic ACTH ↓: iatrogenic or adrenal High-dose dexamethasone suppression test >50% cortisol suppression if pituitary adenoma MRI pituitary fossa ± whole body CT Bilateral inferior petrosal sinus vein sampling Distinguish between ectopic ACTH and CD. Complications Steroid complications Osteoporosis HTN and CV risk Mx General Mx Control BP Anti-DM Bisphosphonates Cause Pituitary adenoma: trans-sphenoidal excision Adrenal adenoma: adrenelectomy Ectopic ACTH Tumour excision Metyrapone: inhibits cortisol synthesis © Alasdair Scott, 2012 87 Addison’s Disease Examination Viva Main Signs Hx Medic alert bracelet Hyperpigmentation Palmar creases Scars Buccal mucosa Postural hypotension Symptoms Wt. loss + anorexia Lethargy, depression Dizziness, faints Cause Other AI disease: DM, vitiligo TB Extras Signs of AI disease DM Vitiligo Hyperthyroidism Signs of TB Ix Bloods U+E: ↓Na, ↑K ↓ glucose Abs: 21-hydroxylase (+ve in 80% c̄ AI disease) Confirm Dx 8am cortisol: low 8am ACTH: high SynACTHen test: no ↑ in cortisol Other CXR: TB AXR: adrenal calcification Mx Acute 0.9% NS IV rehydration 100mg hydrocortisone IV Rx cause: e.g. infection Chronic Replace Hydrocortisone Fludrocortisone Pt. education and advice Don’t stop steroids suddenly ↑ dose during illness / stress Wear medic alert bracelet Carry steroid card © Alasdair Scott, 2012 88 Steroids: Key Facts Neuro Shorts Side Effects Hemiballismus MSK Proximal myopathy Osteoporosis Features Involuntary flinging motions of the extremities Continuous and random Isolated to one side of the body Endocrine HPA suppression Obesity DM Metabolic Na and fluid retention HTN Hypokalaemia Immune ↑ susceptibility to infection CNS Depression Psychosis Eye Cataracts Glaucoma Management Considerations Use steroid-sparing agents where possible Use lowest dose possible Don’t stop suddenly or rapidly ↓ dose Withdraw gradually if used >2-3wks ↑ dose if stressed: illness or trauma Caution c̄ other drugs: e.g. NSAIDs Consider osteoporosis and PUD prophylaxis Cause Damage to the subthalamic nucleus Usually a small infarct in diabetics MS Mx Often resolves spontaneously Haloperidol Benign Essential Tremor Features Action / postural tremor Worse with movement Exacerbating factors Anxiety Caffeine Relieving factors Alcohol Sleep Cause Autosomal dominant Mx Alcohol Propranolol Primidone: anti-epileptic Advice to Patients Don’t stop steroids suddenly Consult doctor when unwell Carry a steroid card / alert bracelet Avoid OTCs: e.g. NSAIDs © Alasdair Scott, 2012 89 Surgery Contents Superficial Lesions ................................................................................................................................................................... 91 Abdomen................................................................................................................................................................................ 105 Breast ..................................................................................................................................................................................... 128 Vascular ................................................................................................................................................................................. 134 Musculoskeletal ..................................................................................................................................................................... 150 Practical Surgery.................................................................................................................................................................... 168 Surgical Radiology ................................................................................................................................................................. 178 Instruments ............................................................................................................................................................................ 195 Key Anatomy.......................................................................................................................................................................... 217 © Alasdair Scott, 2012 90 Superficial Lesions Contents Lump Examination ................................................................................................................................................................... 92 Skin Lumps .............................................................................................................................................................................. 93 Goitre ....................................................................................................................................................................................... 95 Diffuse Goitre: Key Facts ......................................................................................................................................................... 96 Solitary Thyroid Nodules .......................................................................................................................................................... 97 The Neck.................................................................................................................................................................................. 98 Midline and Anterior Triangle Lumps ....................................................................................................................................... 99 Posterior Triangle Lumps ....................................................................................................................................................... 100 Cervical Lymphadenopathy ................................................................................................................................................... 101 Salivary Glands ...................................................................................................................................................................... 102 Hypertrophic and Keloid Scars .............................................................................................................................................. 103 Digital Clubbing ...................................................................................................................................................................... 103 © Alasdair Scott, 2012 91 Lump Examination Key Points Site Size Shape Colour Consistency Contour Cough impulse Tenderness Temperature Transilluminence Tethering Fluctuance Pulsatility Spread (LNs) Notes Is it intradermal or subcutaneous? Intradermal Cannot draw skin over lump Sebaceous cyst, neurofibroma, dermatofibroma Subcutaneous Can move lump independently from skin Lipoma, ganglion, lymph node Fluctuance: assess c̄ press test Consider auscultating for bowel sounds or bruits (AVMs). Completion Examine draining lymph nodes Examine neurovascular function distal to lump. Look for similar lumps elsewhere Hx Onset When and why did you notice it? Any predisposing event: e.g. trauma? Continued Symptoms What symptoms does it cause: e.g. pain? How has it changed? Have you noticed other lumps? Treatments and Cause What treatments have you tried? What do you think the cause is? © Alasdair Scott, 2012 92 Skin Lumps Lump Pathology Features Lipoma Benign tumour of mature adipocytes Inspection Sarcomatous change probably doesn’t occur. Liposarcomas arise de novo - Older pts. - Deeper tissues of the lower limbs Sebaceous cyst Epithelial-lined cyst containing keratin Viva Mx Occur anywhere fat can expand - i.e. NOT scalp or palms - inc. spermatic cord, submucosa Dercum’s Disease / Adiposis dolorosa - Multiple, painful lipomas - Assoc. peripheral neuropathy - Obese, postmenopausal women Non-surgical May be a scar from recurrence Familial Multiple Lipomatosis Madelung’s Disease Palpation Soft Subcutaneous Imprecise margin Fluctuant Inspection Occur @ sites of hair growth - Scalp, face, neck, chest, back - NOT soles or palms Central Punctum Two histological subtypes 1) Epidermal Cyst - Arise from hair follicle infundibulum Ganglion 2) Trichilemmal Cyst / Wen - Arise from hair follicle epithelium - Often multiple - May be autosomal dominant Palpation Cystic swelling related to a synovial-lined structures: joint, tendon Inspection Myxoid degeneration of fibrous tissue Contain thick, gelatinous material Seborrhoeic keratosis Benign hyperplasia of basal cell layer - Hyperkeratosis: corneum thickening - Acanthosis: spinosum thickening - Hyperplasia of basal cells © Alasdair Scott, 2012 Surgical Excision Firm Smooth Intradermal Can be found anywhere Often dorsum of hand or wrist May be scar from recurrence Weakly transilluminable Soft Subcutaneous May be tethered to tendon Stuck on appearance Dark brown Greasy Bannayan-Zonana Syndrome - Autosomal dominant - Multiple lipomas - Macrocephaly - Haemangiomas Complications - Infection: pus discharge - Ulceration - Calcification Non-surgical Surgical Excision Cock’s Peculiar Tumour - Large ulcerating trichilemmal cyst on the scalp - Resemble an SCC Gardener’s Syndrome: FAP + - Thyroid tumours - Osteomas - Dental abnormalities - Epidermal cysts Differential - Bursae - Cystic protrusion from synovial cavity of arthritic joint. Non-Surgical - Aspiration followed by 3wks of immobilisation Surgical Excision - Recurrence in 50% - Neurovasc damage Palpation Non-surgical Surgical: superficial shaving or cautery 93 Lump Pathology Features Neurofibroma Benign nerve sheath tumour arising from schwann cells. Inspection Solitary or multiple Pedunculated nodules Palpation Fleshy consistency Pressure can → paraesthesia Examine skin: Café-au-Lait Spots Examine the eyes: Lisch nodules Examine the axilla: Freckles Examine the cranial nerves (esp. 8) BP Extras Papilloma Pyogenic granuloma Overgrowth of all layers of the skin c̄ a central vascular core. Skin tag / fibroepithelial polyp Rapidly growing capillary haemangioma. Inspection Palpation Epidermal-lined cyst deep to the skin Congenital / Inclusion Cyst - Developmental inclusion of epidermis along lines of skin fusion - Midline of neck and nose - Medial and lateral ends of eyebrows Inspection Benign neoplasm of dermal fibroblasts Benign overgrowth of hair follicle cells Cytologically similar to well-differentiated SCCs © Alasdair Scott, 2012 Possible assoc. c̄ prev trauma More common in pregnancy Smooth spherical swelling Sites of embryological fusion Scar from recurrence Child / young adult: congenital Soft Non-tender Subcutaneous Inspection Can occur anywhere Mostly on the lower limbs of young to middle-aged women Palpation Keratoacanthoma Local regrowth is common Excision + diathermy to control bleeding. Most commonly on hands, face, gums and lips. Bright red hemispherical nodule May have serous / purulent discharge Soft Bleed very easily Palpation Acquired / Implantation Cyst - Implantation of epidermis in dermis - Often 2O to trauma (e.g. piercing) Dermatofibroma Mx Surgical excision only indicated if malignant growth suspected. Pedunculated Flesh coloured Neither pyogenic, nor a granuloma Dermoid Cyst Viva NF 1: von Recklinghausen’s - AD, Chr 17 - Cafe-au-lait spots (>6, >15mm) - Freckling - Neurofibromas - Lisch nodules (iris) Non-surgical - regression is uncommon Surgical - curettage c̄ diathermy of the bases Adult: acquired - Ask re. trauma Congenital - CT to establish extent - Surgical excision Acquired - Surgical excision Differential - Malignancy: melanoma, BCC Excision + histology Small, brown pigmented nodule Firm, woody feel: characteristic Intradermal: mobile over deep tissue Fast-growing Dome-shaped c̄ a keratin plug Intradermal Regress w/i 6wks Excise to reduce scarring and obtain histology 94 Goitre Thyroid Examination Viva Preparation Goitre Differential Ensure exposure down to the clavicles Position pt. away from a wall Are you comfortable: not too hot or cold? Hoarse voice: recurrent laryngeal nerve palsy General Inspection Nervous/agitated or slow/lethargic Body habitus Sweaty Skin and hair condition Hands Thyroid acropachy Palmar erythema Temperature, sweating Fine tremor: piece of paper on out-stretched hands Pulse: rate and rhythm (AF in thyrotoxicosis) Eyes Sympathetic Overstimulation Lid Retraction: sclera between iris and upper lid Lid Lag Graves Oedema: periorbital and chemosis Exophthalmos: inspect from above and side Ophthalmoplegia: esp. upgaze palsy Exophthalmos Differential Orbital cellulitis Trauma Masses: meningioma, glioma Carotid cavernous fistula: pulsatile exophthalmos Idiopathic orbital inflammatory disease Diffuse Enlargement Smooth Simple colloid goitre Graves Thyroiditis: Hashimoto’s, de Quervain’s, Riedel’s Nodular Multinodular goitre Multiple adenomas Solitary Nodule Dominant nodule of a multinodular goitre Adenoma Malignant O 1 : papillary, follicular, medullary, anaplastic 2O: breast Cyst Commonest Causes of Hyperthyroidism Graves’ (~2/3) Toxic Multinodular Goitre ( = Plummer’s) Hypothyroidism Primary atrophic Hashimoto’s thyroiditis Iodine deficiency: commonest Worldwide Hx Thyroid status Compression symptoms: dysphagia, difficulty breathing Previous thyroid medications or surgery Neck Ix Inspect: from front and side. Look for collar scars Ask pt. stick out tongue and swallow water Look in mouth for lingual thyroid Bloods TFTs: TSH, fT3, fT4 Other: FBC, Ca2+, calcitonin, ESR Antibodies: anti-TPO, TSH Palpate: from behind Palpate masses: can you get under it? Repeat the swallow and protrusion test Lymphadenopathy Check for tracheal deviation. Imaging CXR: goitre and mets High resolution US CT Radionucleotide (Tc or I) scan: hot vs. cold Percuss: for retrosternal extension Histology or cytology FNAC (can’t distinguish adenoma vs. follicular Ca) Biopsy Auscultate: thyroid bruits (Graves’) Legs Pretibial myxoedema: brown swelling above lat. malleoli Proximal myopathy: ask pt. to stand from chair (Graves) Ankle reflexes: kneel on chair Slow relaxing: hypothyroidism Brisk: hyperthyroidism Completion Observation chart History © Alasdair Scott, 2012 Laryngoscopy Important pre-op to assess vocal cords Discussion Multinodular goitre Graves’ Thyroiditis Thyroid Nodules Thyroid surgery 95 Diffuse Goitre: Key Facts Multinodular Smooth Features Simple Colloid Goitre Commonest goitre in UK Progression of simple diffuse goitre to nodular enlargement. Middle-aged women Positive family Hx Over-activity in parts may → mild thyrotoxicosis Plummer’s Syndrome Malignant change occurs in 5% of untreated MNGs Hyperplasia of gland 2O to ↑TSH release Causes Iodine deficiency: commonest worldwide ↑ physiological demand: pregnancy, puberty Goitrogens: e.g. Li, uncooked cabbage Rx Mx Not usually required Thyroxine or ↑ dietary iodine Most pts. don’t require intervention Non-Surgical Thyroxine → regression in 50-70% Suppress TSH Toxic Multinodular Goitre Propranolol + carbimazole Radioiodine Surgical Indications: 5 Ms Mechanical obstruction Malignancy Marred beauty: cosmetic reasons Medical Rx failure: thyrotoxicosis Mediastinal extension: can’t monitor changes Procedure Total thyroidectomy Removes risk of malignant change in thyroid remnant. Plummer’s vs. Graves Plummer’s Older Nodular enlargement No extra features AF in 40% No assoc. AI disease Graves’ Younger Diffuse enlargement Extra Features Eye signs Dermopathy Acropachy AF relatively uncommon Assoc. c̄ AI disease Grave’s Disease: ↑ uptake Epidemiology Prev: 0.5% 60% of cases of thyrotoxicosis Sex: F>>M=9:1 Age: 40-60yrs Features Diffuse goitre c̄ bruit Triggers: stress, infection, child-birth Ophthalmopathy Oedema: periorbital and chemosis Exophthalmos → exposure keratopathy Ophthalmoplegia: esp. upgaze palsy Optic neuropathy: ↓ acuity and RAPD Dermopathy: pre-tibial myxoedema Acropachy: periosteal reaction (clubbing is soft tissue) Pathology of Eye Disease Exophthalmos Retro-orbital inflammation and lymphocytic infiltration → orbital oedema O 2 to anti-TSH abs Lid-lag Not Graves’ specific Sympathetic overstimulation → restrictive myopathy of LPS Associations T1DM Vitiligo Pernicious anaemia Rx Medical: propranolol + carbimazole Radioiodine Surgical: subtotal or total thyroidectomy Thyroiditis: ↓ uptake © Alasdair Scott, 2012 Hashimoto’s de Quervain’s Subacute lymphocytic: post-partum Riedel’s 96 Solitary Thyroid Nodules Benign Pathology Follicular Adenoma Thyroid Cyst Features 2-4cm mass ± thyrotoxicosis Indistinguishable from follicular Ca on FNAC - need excision histology to confirm Dx True cysts are rare Mostly colloid degeneration, necrosis or haemorrhage w/i benign or malignant tumours Only benign if abolished by aspiration Mx Hot - <3cm: radioiodine - >3cm: surgical excision Cold: excision Cytology can be false negative in 30% <4cm: aspirate and review in 6/12 Surgical Excision - >4cm - Blood-stained aspirate - Recurrence after aspiration Malignant Disease Papillary Frequency 80% Age 20-40 Assoc. c̄ irradiation Follicular 10% F>M = 3:1 Cell Origin Follicular cells Tg tumour marker 40-60 Follicular cells Spread Nodes and lung - JDG node = lateral aberrant thyroid Mx Total thyroidectomy + T4 to suppress TSH ± node excision ± radioiodine May be multifocal Blood → bone and lungs >95% 10ys Total thyroidectomy + T4 suppression + Radioiodine Tg tumour marker Medullary Anaplastic Lymphoma 5% 30% are familial - e.g. MEN2 MEN2: young Sporadic: 40-50 Rare F>M = 3:1 >60 5% Thyroid Nodule Facts F>M = 4:1 4th and 5th decades 10% malignant in middle aged 50% malignant in young and elderly FNAC is most important Ix Ix: Triple Assessment Clinical examination US FNAC Rapid growth >95% 10ys Do phaeo screen pre-op Thyroidectomy + Node clearance Consider radiotherapy Usually palliative Aggressive: local, LN and blood. May try thyroidectomy + radiotherapy Parafollicular C-cells CEA and calcitonin markers Undifferentiated follicular cells Lymphocytes - MALToma in Hashi’s <1% 10ys Chemoradiotherapy Complications of Thyroid Surgery Early Reactionary haemorrhage → haematoma Recurrent laryngeal nerve palsy Hypocalcaemia Thyroid storm Late Hypothyroidism and hypoparathyroidism Recurrence of disease Keloid scar Isotope scan: used if pt. is hyperthyroid Men 1: Wermer Syndrome Pituitary adenoma Parathyroid hyperplasia or adenoma Pituitary endocrine tumour Men 2 Medullary thyroid Ca Phaeochromocytoma A: hyperparathyroidism B: marfanoid habitus © Alasdair Scott, 2012 Practicalities of Thyroid Surgery Render euthyroid pre-op c̄ antithyroid drugs Stop 10 days prior to surgery (they ↑ vascularity) Alternatively just give propranolol Check for phaeo pre-op in medullary carcinoma Laryngoscopy: check vocal cords pre- and post-op 97 The Neck Examination Preparation Ensure exposure down to the clavicles Position pt. away from wall Inspect: Scars, Sinuses, Masses Neck Look very carefully for scars: collar incision Look for masses: which triangle? Does mass move on swallowing or tongue protrusion? Mouth Lingual thyroid Ranula (ruptured salivary gland → mucocele) Eyes Thyroid eye disease Differential Position Anywhere Midline Ant. Triangle Post. Triangle Ix Solid Cystic Lipomas and Sebaceous Cysts Ectopic thyroid tissue Thyroglossal Cyst Thyroid isthmus mass Inclusion dermoid LNs Branchial Cyst Chemodectoma Laryngocele Goitre Parotid tumour LNs Cystic Hygroma Cervical Rib Pharyngeal Pouch Pancoast tumour US shows consistency FNAC or core biopsy Consider CT / MRI to define relations Palpate Best from behind the pt. Palpate while pt. swallowing and protruding tongue Assess for lymphadenopathy Tracheal deviation Percuss Retrosternal extension Auscultate Listen over lump for bruits. Gurgle of pharyngeal pouch Hx Onset When and why did you notice it? Any predisposing event: e.g. trauma? Continued Symptoms What symptoms does it cause: e.g. pain? How has it changed? Have you noticed other lumps? Treatments and Cause What treatments have you tried? What do you think the cause is? If no obvious masses / skin lesions Check neck pulses and listen for bruits Test sensation and neck movements Completion If goitre → asses thyroid status Lump history © Alasdair Scott, 2012 98 Midline and Anterior Triangle Lumps Lump Pathology Presentation Viva Mx Thyroglossal Cyst Persistence of any part of the thyroglossal duct which marks the developmental descent of the thyroid from the foramen caecum Young pt. Differential - Thyroid nodule and masses - Dermoid / epidermal cysts - Subhyoid bursa Sistrunk’s Operation - Inject patent tract c̄ dye at start - Excise cyst and patent tract - Need to central portion of hyoid as tract runs through it. Ectopic thyroid tissue can be found anywhere along this path of descent. Cysts may contain thyroid tissue which can undergo malignant change → papillary Ca Fluctuant midline neck lump Usually subhyoid Protrusion of tongue → elevation Swallowing → elevation May see opening of a thyroglossal sinus Following removal there will be a transverse incision just above the thyroid cartilage. Branchial Cyst Failed fusion of 2nd and 3rd branchial arches Young pt. Lined by squamous epithelium Ant. margin of SCM at junction of upper and middle thirds Epidemiology - Rare - M=F st - 40% in 1 decade Complications - Infection - Sinus formation - Development of Ca - Recurrence post-op Complications - Infection - Sinus formation - Recurrence post-op Contain “glary” fluid c̄ cholesterol crystals Firm, fluctuant ovoid swelling Opaque on transillumination Surgical Excision - Bonney’s blue dye can be injected into fistula to allow more accurate excision - May be difficult due to proximity of carotids Medical - Sclerotherapy is an option May be opening from branchial sinus Chemodectoma Very rare Ant. triangle @ the angle of the jaw Tumour of the paraganglion cells of the carotid bodies: measure pH and PaO2 and PaCO2 Pulsatile Moves laterally but not vertically Located @ the carotid bifurcation Pressure can → syncope Ix - Duplex US - Angiography: splaying - CT / MRI Surgical Excision Ultrasonic surgical dissection Radiotherapy - Large tumours - Unfit for surgery Mostly benign (5% malignant) May be bilateral © Alasdair Scott, 2012 99 Posterior Triangle Lumps Lump Pathology Presentation Viva Mx Cystic Hygroma Congenital multicystic lymphatic malformation Usually paediatric Lobulated cystic swelling Soft and fluctuant Compressible Transilluminate brilliantly ↑s in size when infant coughs / cries Complications - Obstruction of swallowing - Respiratory obstruction Surgical excision Hypertonic saline sclerosant Symptoms - Regurgitation - Dysphagia Non-surgical - If small and asymptomatic Look in the oropharynx - Cyst may extend into retropharyngeal space Pharyngeal Pouch Herniation of pharyngeal mucosa through its muscular coat at its weakest point. - Pulsion diverticulum Elderly patient Killian’s dehiscence - Between thyro- and crico-pharyngeal muscles that form the inferior constrictor Palpation → gurgling Left sided cystic swelling Hallitosis Complications - Aspiration → pneumonia - Diverticular neoplasia (<1%) Surgical: Dohlman’s Procedure - Minimally invasive endoscopic stapling Ix - Ba swallow Cervical Rib Overdevelopment of transverse process of C7 Hard swelling: mostly asymmpto Occur in 1:150 Can → vascular symptoms - Due to subclavian A. compression - Subclavian steal - Raynaud’s Surgical excision Can → neurological symptoms - Compress lower roots of brachial plexus, T1 or stellate ganglion - Wasting of intrinsic hand muscles - Paraesthesia along medial arm © Alasdair Scott, 2012 100 Cervical Lymphadenopathy Examination Viva Key Features History Symptoms from the lumps e.g. EtOH-induced pain General symptoms Fever, malaise, wt. loss Systemic disease PMH Previous operations Social history Ethnic origin HIV risk factors Consistency Number Fixation Symmetry Tenderness Technique Ask pt. to drop chin to relax muscles Chin backwards → pre-auricular Down anterior cervical chain Supra- and infra-clavicular nodes Up posterior cervical chain Mastoid → occipital nodes Causes: LIST Additional Examination Face and scalp for infection or neoplasm Chest exam: infection or neoplasm Breast examination Formal full ENT examination Rest of reticuloendothelial system Lymphoma and Leukaemia Infection Sarcoidosis Tumours ENT Breast Lung Gastric Infection Bacterial Tonsillitis, dental abscess TB Bartonella henselae (Cat scratch disease) Viral EBV HIV Protozoal Toxoplasmosis Ix Blood FBC, ESR, film (atypical lymphocytes) TFTs, serum ACE Monospot test, HIV test Radiological US CT scan Pathology FNAC Excision biopsy © Alasdair Scott, 2012 101 Salivary Glands Examination Viva Inspection Hx Skin changes: swelling, scars, sinuses Swelling / discrete lump Parotid or submandibular? Bilateral or unilateral? Facial asymmetry Inside the mouth c̄ a pen torch Stenson’s duct opposite the 2nd maxillary molar Wharton’s duct adjacent to the frenulum linguae Inflammation, stone, pus Palpation Any tenderness? Palpate from behind Test muscle fixity: ask pt. to clench teeth Palpate for cervical lymphadenopathy Completion Bimanual palpation of parotid and submandibular ducts for stones. Bimanual palpation of submandibular gland Test CN7 Perform full ENT examination Differential Diffuse Swelling of Whole Gland Infection: Parotitis Autoimmune: Sjogren’s Infiltration: Sarcoid Systemic: Chronic liver disease, DM, anorexia, bulimia Localised Swelling Calculus Lipoma Salivary gland neoplasm Leukaemia: ALL Pain or swelling related to food: calculi Fever / malaise: mumps Dry eyes / mouth: Sjogren’s SOB: sarcoid Salivary Gland Neoplasms Features 80% in the parotid gland 80% benign: 80% are pleiomorphic adenomas Only 60% of submandibular gland tumours are benign Common Types Benign Pleiomorphic adenoma: 80% <50yrs Adenolymphoma: Warthin’s tumour >50yrs Smoking is important risk factor Malignant st 1 : Mucoepidermoid 2nd: Adenoid cystic Malignant Features Ix Facial nerve palsy Rapid growth and pain Hyperaemic, hot skin Hard consistency Fixity to skin or underlying muscle FNAC MRI: determine deep lobe involvement Rx Benign Superficial: superficial parotidectomy Deep: total parotidectomy Malignant Total parotidectomy ± adjuvant radiotherapy Complications Immediate Facial nerve injury Reactionary haemorrhage Early Temporary facial weakness: neuropraxia Salivary fistula Loss of pinna sensation: greater auricular nerve damage. Late: Frey’s Syndrome (gustatory sweating) Facial sweating while eating Re-innervation of divided sympathetic nerves by fibres from the secretomotor branch of auriculotemporal branch of CNV3 © Alasdair Scott, 2012 102 Hypertrophic and Keloid Scars Digital Clubbing Features Causes Scar more prominent than surrounding skin Hypertrophic Scar confined to wound margins Across flexor surfaces and skin creases Appear soon after injury and regress spontaneously Any age: commonly 8-20yrs M=F All races Keloid Scar extends beyond wound margins Earlobes, chin, neck, shoulder, chest Appear months after injury and continue to grow Puberty to 30yrs F>M Black and Hispanic Wound Associations Infection Trauma Burns Tension Certain body areas Gastrointestinal CLD: esp. PBC IBD: esp. Crohn’s Coeliac disease GI lymphoma Respiratory Chronic suppurative lung disease CF / bronchiectasis Abscess Empyema Malignancy: adenocarcinoma or mesothelioma Pulmonary fibrosis Cardiac Infective endocarditis Congenital cyanotic heart disease Fallot’s Transposition Atrial myxoma: e.g. in Carney Complex Miscellaneous Familial Thyroid acropachy Axillary artery aneurysms and brachial AVMs Pathophysiology Mx Non-surgical Mechanical pressure therapy Topical silicone gel sheets Intralesional steroid and LA injections Surgical Revision of scar c̄ closure by direct suturing © Alasdair Scott, 2012 Exact aetiology unknown Platelet clumps and megakaryocytes bypass the lungs and impact in digital capillaries. They release growth factors such as PDGF → clubbing Stages 1: bogginess of the nail bed 2: loss of the nail angle 3: ↑ curvature 4: expansion of the distal phalanx 103 Abdomen Contents Abdominal Examination ......................................................................................................................................................... 105 Inguinal Hernia ....................................................................................................................................................................... 106 Inguinal Hernia: Key Facts ..................................................................................................................................................... 107 Incisional Hernia .................................................................................................................................................................... 108 Umbilical and Paraumbilical Hernia ....................................................................................................................................... 109 Epigastric Hernia.................................................................................................................................................................... 110 Examination of a Scrotal Lump .............................................................................................................................................. 111 Hydrocele ............................................................................................................................................................................... 112 Epididymal Cyst ..................................................................................................................................................................... 113 Varicocele .............................................................................................................................................................................. 113 Testicular Tumour .................................................................................................................................................................. 114 Stomas ................................................................................................................................................................................... 115 Stomas: Key Facts ................................................................................................................................................................. 116 Surgical Scars ........................................................................................................................................................................ 117 Colonic Resections ................................................................................................................................................................ 119 Inflammatory Bowel Disease ................................................................................................................................................. 122 IBD: Key Facts for Surgery .................................................................................................................................................... 123 Surgical Jaundice................................................................................................................................................................... 124 Right Iliac Fossa Mass ........................................................................................................................................................... 125 Abdominal Masses................................................................................................................................................................. 126 © Alasdair Scott, 2012 104 Abdominal Examination The Abdomen Set-Up Pt. exposed from nipples to pubis Lying flat Inspection Peripheral Stigmata General General condition of the pt. Jaundice (BR >50mM), pallor (Hb <7g/dL) Cachexia Abdominal distension Abdominal asymmetry Drains, stomas, scars Ask pt. to cough and lift head from bed Hands CLD 1. Clubbing 2. Leukonychia 3. Terry’s nails White ground glass nail Loss of lunula Pink tips 4. Palmer erythema 5. Dupuytron’s contracture 6. Asterixis Abdominal Clubbing ∆∆ Cirrhosis: esp. c̄ PBC IBD Coeliac GI lymphoma Distension: fat, fluid, flatus, faeces, foetus Scars: describe location and healing Stomas: site, contents, lumens, spout Drains: contents, type Asymmetry: masses Palpation Kneel on floor and look @ pts. face for pain Superficial, then deep Describe any masses Liver Note consistency, edge, tenderness, pulse Percuss Spleen Role pt. towards you Percuss if palpable Kidneys Left then right Ballot c̄ respiration AAA Just to left on midline, above the umbilicus Percussion Anaemia Koilonychia Pale palmer creases Percuss any masses or organomegaly If distended, percuss for shifting dullness Pulse and BP Auscultate Bowel sounds Aortic bruits Face Eyes Keiser Fleischer rings Pale conjunctivae Jaundice Xanthelasma Palpate Ankles for Oedema Completion Mouth Telangiectasia: HHT Pigmented macules: Peutz-Jehgers Stomatitis and glossitis Ulceration Jaundice Digital rectal examination External genitalia Stand pt. to examine hernial orifices Dipstick the urine Look at the observation chart Neck Inspect for scars: venous lines Sit forward and palpate for lymphadenopathy: esp. Virchow’s node in left supraclavicular fossa Back Inspect back c̄ pt. sitting forward Spider naevi Scars: e.g. loin incisions Chest Spider naevi Gynaecomastia Loss of axillary hair © Alasdair Scott, 2012 Spider Naevi Central arteriole c̄ radiating vessels Fill from the centre Telangiectasia fill from edge Distribution of SVC >4 abnormal ∆∆: CLD, OCP, pregnancy 105 Inguinal Hernia Examination Viva Set-Up Groin Lump Differential Expose pt. from umbilicus to knees Begin c̄ pt. standing Inspection Look for any masses in groins. Ask pt. to cough. Comment on appearance of mass Site, size Features of inflammation (suggesting strangulation) Look for any scars Previous hernia operations Appendicectomy: ? risk factor for direct hernia Palpation Check if pt. in any pain. Palpate from the side of the pt. Palpate mass for cough impulse Define anatomy: relation to pubic tubercle? Above (and medial): inguinal hernia Below (and lateral): femoral hernia Does mass extend into scrotum? Inguinoscrotal hernia are more likely to be indirect Auscultate for bowel sounds Hernia may lack bowel sounds if it just contains fat. Repeat Inspection and Palpation c̄ pt. Supine Does the mass disappear when lying down? Test for Direct vs. Indirect Hernia Ask pt. to reduce hernia Place 2 fingers over deep ring and ask pt. to cough. Mid pt. of ing. lig. or 1.5cm above femoral pulse Hernia controlled = indirect Not controlled = direct Not an accurate test: definitive determination in theatre. Wash hands Complete Examination Examine external genitalia: incidental lumps, testes Examine contralateral groin Examine abdomen Evidence of ↑ IAP: masses, ascites Other hernias: paraumbilical, umbilical © Alasdair Scott, 2012 Tissue Skin Fat Connective tissue Nerves Lymphatics Veins Arteries Inguinal canal Femoral canal Testes Lump Sebaceous cyst, psoas abscess Lipoma Fibroma Neuroma of femoral N. LN Saphena varix Femoral artery aneurysm Inguinal hernia Hydrocele or lipoma of the cord Femoral hernia Undescended testis 4 distinguishing features of an inguinal hernia Above and medial to pubic tubercle Cough impulse Reducible Bowel sounds Hx Predisposing factors: cough, straining, lifting Pain Reducible Episodes of obstruction or strangulation Previous repairs Mx Conservative Manage RFs: e.g. constipation, cough Weight loss Elasticated corset or truss Surgical Open: Lichtenstein Tension Free Mesh Lap: TEP or TAPP mesh Discussion Difference between direct and indirect inguinal hernia Difference between inguinal and femoral hernias Inguinal canal anatomy Contents of the spermatic cord Recovery from inguinal hernia repair Operative techniques Complications of repair 106 Inguinal Hernia: Key Facts Definition Surgery Anatomy Open Open can be done under LA or GA: day case RCS recommends the Lichtenstein Tension Free Mesh Repair Less recurrence cf. older Shouldice Repair Protrusion of a viscus or part of a viscus into an abnormal position through a defect in its containing cavity. Inguinal Canal Ant: ext. oblique + int. oblique for lateral 3rd Post: transversalis fascia + conjoint tendon for medial 3rd Floor: inguinal ligament Roof: arching fibres of transversus and int. oblique Femoral Canal Med: lacunar ligament Lat: femoral vein Ant: inguinal ligament Post: pectineal ligament (of Cooper) Contents: fat and Cloquet’s Node Contents of Inguinal Canal M: spermatic cord + ilioinguinal N. F: round lig., ilioinguinal N., gen branch of genfem N. Contents of Spermatic Cord 3 layers of fascia 3 arteries + 3 veins 2 nerves 3 other things Operative Distinction Indirect: arise lateral to inf. epigastric vessels Direct: arise medial to inguinal ligament, through Hesselbach’s Triangle Med: rectus abdominis muscle Lat: inf. epigastric artery Inf: inguinal ligament Classification of Inguinal Hernias Open and lap approaches: lap if bilateral / recurrent Mention risk of testicular damage when consenting pt. NB. In children, simple ligation and division of the patent processus suffices: no mesh needed. Lap 2 main techniques Totally ExtraPeritoneal (TEP) Trans-Abdominal Pre-Peritoneal (TAPP) Better for bilateral hernia Complications Early Urinary retention Haematoma / seroma formation: 10% Infection: 1% Intra-abdominal injury (lap) Late Recurrence: <2% Ischaemic orchitis: 0.5% O 2 thrombosis of pampiniform plexus Chronic groin pain / paraesthesia: 5% Post-Op Recovery Pee before leaving Early mobilisation is important Can be painful: given good analgesia Avoid constipation: lactulose Keep the area clean and dry: wash carefully Can bathe immediately Work in 1-2wks (6wks if heavy lifting) Indirect: 80% Commoner in young Congenital patent processus vaginalis Emerge through deep ring Same 3 coverings as cord and descend into the scrotum Can strangulate Direct: 20% Commoner in elderly Acquired: weak posterior wall of canal Emerge through Hesselbach’s triangle Can acquire internal and external spermatic fascia Rarely descend into scrotum Rarely strangulate Clinical Distinction Femoral Hernia Commoner in females (wider femoral canal) Middle aged and elderly Neck is inferior and lateral to pubic tubercle High risk of obstruction and strangulation Mx 50% risk of strangulation w/i 1mo Urgent surgery Elective: Lockwood Low Approach Low incision over hernia c̄ herniotomy and herniorrhaphy (suture ing. ligt. to pectineal ligt.) Emergency: McEvedy High Approach Cameron, BJS 1994 High approach in inguinal region to allow inspection 56% of direct hernias were wrongly classified as indirect on and resection of non-viable bowel. examination by consultant surgeons. Then herniotomy and herniorrhaphy © Alasdair Scott, 2012 107 Incisional Hernia Examination Viva Inspection Hx Pt. may be overweight Describe scars + drain sites Any evidence of inflammation (e.g. from strangulation) Ask pt. to lift head off bed Ask pt. to cough Palpation Any tenderness? Feel for presence of defect Ask pt. to cough while feeling for an impulse Is the defect present along the whole length of the scar? Size of defect relates to risk of strangulation If a lump is present, can it be reduced? Auscultate For bowel sounds Previous surgery Post-operative wound infection or other complications Co-morbidities → ↑ risk: e.g. chronic cough Discomfort or episodes of obstruction Definition Extrusion of peritoneum and abdominal contents through a previously acquired defect. Complications Intestinal obstruction: often intermittent Become irreducible Strangulation Pain or discomfort Risk Factors Pre-operative ↑ age Comorbidities: DM, renal failure Drugs: steroids, chemo, radio Obesity or malnutrition Malignancy Intra-operative Surgical technique/skill (major factor) Too small suture bites Inappropriate suture material Incision type (e.g. midline) Placing drains through wounds Post-operative ↑ IAP: chronic cough, straining, post-op ileus Infection Haematoma Mx Surgery is not appropriate for all patients. Must balance risk of operation and recurrence c̄ risk of obstruction / strangulation and pt. choice. Usually broad-necked low risk of strangulation Conservative Manage RFs: e.g. constipation, cough Weight loss Elasticated corset or truss Surgical Pre-Op Optimise cardiorespiratory function Encourage wt. loss Nylon mesh repair: open or lap © Alasdair Scott, 2012 108 Umbilical and Paraumbilical Hernia Examination Viva Inspection Hx Pt. may be overweight Ask pt. to lift head off bed and to cough Note any associated skin damage: e.g. ulceration Note any overlying scars: may indicate recurrence Palpation Any tenderness? Feel for presence of defect Try to asses size Ask pt. to cough while feeling for an impulse If a lump is present, ask pt. to reduce it. Predisposing factors: pregnancy, ascites, obesity Pain Reducible Episodes of obstruction or strangulation Previous repairs Paraumbilical Pathogenesis Acquired defect in the linea alba just above or below the umbilicus Commoner in obese, middle-aged pts. Neck is commonly narrow Prone to becoming irreducible or strangulated Typically contain omentum ± large or small bowel May be large → necrosis of the skin Risk Factors Obesity Pregnancy Ascites Fibroids Bowel distension Mx Surgery advised due to high risk of strangulation Rx concurrent medical problems Mayo Repair Mobilise sac and reduce contents Double-breast the linea alba ± sublay mesh Umbilical Pathogenesis Congenital defect in the umbilical scar (cicatrix) Typically congenital: 3% of live births Risk Factors Afro-Caribbean Trisomy 21 Congenital hypothyroidism Can recur in adults: pregnancy, ascites Mx Usually asymptomatic and resolve by 2-3yrs Surgical repair advocated if no resolution by 3yrs Other Congenital Defects Gastroschisis Protrusion of abdo contents through defect in abdo wall to the right of the umbilicus. Not usually assoc. c̄ other abnormalities Promt surgical repair after fluid resuscitation Exomphalos Protrusion of abdominal contents w/i in a 3-layered sac Commonly assoc. c̄ other defects: cardiac, anencephaly © Alasdair Scott, 2012 109 Epigastric Hernia Examination Viva Inspection Hx Midline lump above the umbilicus when the pt. coughs or lifts head from bed. Typically small: “pea shaped” Associated scars? Incisional hernia or previous repairs Predisposing factors: pregnancy, obesity Symptoms Reducible Episodes of obstruction or strangulation Previous repairs Palpation Any pain? Feel for cough impulse Establish size of the defect Differential Incisional hernia: ?scar Divarication of the recti Widening of gap between recti muscles Not a hernia Features Abnormal protrusion of abdominal contents through a defect in the linea alba between the xiphisternum and umbilicus. Usually contain extraperitoneal fat or omentum Commoner in young (20-50yrs) Symptoms May be asymptomatic May be confused for upper GI pathology Pain: may ↑ after meals or exercise Nausea and early satiety Abdominal bloating Mx Conservative Manage RFs: e.g. constipation, cough Weight loss Surgical Reduce hernial contents and excise sac Suture or mesh repair © Alasdair Scott, 2012 110 Examination of a Scrotal Lump Set Up Best to examine pt. standing: won’t miss a varicocele Inspection Skin: scars, erythema, blue tinge, ulcers Groin lumps or scars Ask pt. to cough Palpation: 4 Key Questions 1. Can you get above it? Can’t get above an inguinoscrotal hernia 2. Is it tender? Torted testis or hydatid of Morgagni Epididymo-orchitis Strangulated hernia 3. Is testis palpable separately? No Yes Tumour Orchitis Hydrocele Varicocele Spermatocele / epididymal cyst 4. Does it transilluminate? No Yes Tumour Testis Varicocele Hydrocele Spermatocele Diagnostic Pathway Can you get above it? No Inguinoscrotal Hernia Yes Is it separately palpable? No Does it transilluminate? No Tumour Orchitis Haematocele © Alasdair Scott, 2012 Yes Hydrocele Yes Does it transilluminate? No Varicocele Spermatocele Sperm granuloma Epididymitis Yes Epididymal cyst 111 Hydrocele Examination Viva Inspection Hx Swollen scrotum Palpation Can get above it. Cannot feel testis separately Firm / tense Transilluminates Duration Pain, discomfort or other symptoms Previous testicular masses or infections Recent trauma Treatment so far Co-morbidities: e.g. heart failure Definition Accumulation of fluid w/i the tunica vaginalis Remnant of the processus vaginalis that accompanied the testicle during its descent. Forms one of the adult coverings of the testis Anatomical Classification Vaginal Accumulation in the tunica vaginalis that doesn’t extend up the cord Congenital Proximal part of processus has not obliterated and the sac communicates directly c̄ the peritoneum. Infantile Processus is obliterated at the deep ring but still extends up the cord Hydrocele of the Cord Fluid accumulates around the ductus deferens. Can be hard to distinguish from an inguinal hernia as it may extend proximal to the superficial ring. Testicular traction will pull it inferiorly (cf. inguinal hernia) Aetiological Classification Primary Caused by a patent processus vaginalis Commonest type Young men, large, tense Secondary Vaginal type can be caused by a variety of pathologies Testicular tumours Epididymo-orchitis Trauma Torsion Ix US to exclude malignancy Mx Non-Surgical Watch-and-wait (ensure no Ca) Aspiration: symptom relief only as will accumulate Surgical Lord’s Repair: plication of the tunica vaginalis Jaboulay’s Repair: eversion of the sac © Alasdair Scott, 2012 112 Epididymal Cyst Varicocele Examination Examination Inspection Inspection Normal appearing scrotum Palpation Can get above it Separate from testis: typically above and behind Firm Transilluminates Unless it’s a spermatocele Viva Normal appearing scrotum Palpation Pt. must be standing Can get above mass Separate from testis Feels like a bag of worms Doesn’t transilluminate May have palpable cough impulse Often disappear on lying supine Viva Hx Duration Pain, discomfort or other symptoms Treatment so far Features Retention cyst of a tubule of the rete testis or the epididymis. Often multiple May contain sperm: spermatocele Generally asymptomatic Mx Hx Duration Pain, discomfort or other symptoms Treatment so far Pathophysiology Dilated veins of the pampiniform plexus 98% left sided, 50% bilateral 1O: occur in up to 15% of young men Often around puberty Anatomical cause: ? nutcracker syndrome 2O: varicoceles suddenly appearing in older men can be sinister Retroperitoneal disease affecting the testicular V. E.g. renal cell carcinoma extending into L renal V. Don’t disappear when pt. lies supine Non-surgical If the cyst isn’t troublesome it shouldn’t be removed There is a risk of operative damage and post-op fibrosis → subfertility Symptoms Surgical Very large or painful cysts can be removed Excision of the entire epididymis may be indicated to prevent the recurrence of painful cysts. 98% Occur on the Left Dragging sensation, exacerbated by exertion Subfertility: commonest surgically correctable cause Left testicular vein is more vertical where it joins the left renal vein, cf. to the obliquity of the right testicular V. where it joins the IVC. Left renal vein can be compressed by the colon Left testicular vein is longer than the right Left testicular vein often lacks a terminal valve to prevent backflow. Mx Non-surgical Scrotal support Transfemoral radiological embolisation of the testicular vein Surgical Often advised as the problem usually gets worse c̄ age and can → subfertility Palomo operation High approach c̄ transverse incision slightly above and medial to ASIS Vein exposed and ligated. Inguinal approach: ligation of veins in the inguinal canal Laparoscopic approach also possible © Alasdair Scott, 2012 113 Testicular Tumour Examination Viva Inspection Hx Enlarged testis may be visible Palpation Can get above mass Inseparable from testis Hard, irregular, nodular Non-tender Doesn’t transilluminate Presentation Completion Examine contralateral scrotum Abdo exam: hepatomegaly Chest exam: thoracic mets Examine for abdominal lymphadenopathy Differential Testicular tumour Chronic infection → scarring: orchitis, TB Chronic, calcified hydrocele Pain, discomfort SOB: lung mets Back pain: para-aortic node involvement Haematospermia Hydrocele Previous history: tumour, infection Commonest malignancy in men 15-45yrs Painless lump or dull ache in one testis in young man Occasionally a Hx of trauma accompanying discovery of mass. 10% present c̄ acutely painful testis Haematospermia 2O hydrocele Classification 95% are germ cell tumours Only 50% are pure cell populations Pure seminomatous: 50% Non-seminomatous: teratoma is commonest Other types include Yolk sac: commonest testicular tumour in children Choriocarcinoma Leydig or Sertoli Cell May secrete oestrogens → gynaecomastia Lymphoma: NHL is commonest testicular mass >60yrs Present Markers Early Late Ix Seminoma: 40% 30-40yrs Usually normal DXT to para-aortic LNs ± single dose of cisplatin DXT + combi chemo: BEP Teratoma 20-30yrs ↑AFP + ↑βhCG in 90% Observation or 1-2 cycles of chemo Combination chemo: BEP Tumour markers: AFP, βhCG, placental ALP CXR: mets US scrotum: diagnostic CT abdomen: staging Mx All testicular tumours are treated c̄ orchidectomy Groin incision c̄ early clamping of spermatic cord to prevent seeding Seminoma Early: DXT to para-aortic nodes Late: DXT + combination chemo Teratoma Early: observation Late: combination chemo (Bleomycin, Etoposide, cisPlatin) © Alasdair Scott, 2012 114 Stomas Examination Viva Inspection Definition Site Contents of bag Solid stool Semi-formed or liquid stool Urine Appearance Spout Lumens Rod Mucosal health Scars No scars suggests colonoscopy assisted trephine colostomy Palpate Palpate for parastomal hernia Complete Examination Remove bag to closely inspect and digitate stoma No. of lumens Health of mucosa and surrounding skin Strictures Prolapse Examine the perineum Artificial union between conduits or between a conduit and the outside. Hx Surgery Output Pain Complications Psychosexual function Indications Exteriorisation Perforated or contaminated bowel: e.g. Hartmann’s Permanent: e.g. AP resection Diversion Protection of distal anastomosis Contamination: e.g. faecal peritonitis Anatomical: e.g. ileorectal anastomosis Acute Crohn’s Urinary diversion following cystectomy Decompression: bypass of distal obstructing lesion Feeding: gastrostomy / jejunostomy Lavage: e.g. appendicostomy Quick Distinction Ileostomy RIF Spout Watery contents Perm: Proctocolectomy Temp: Anterior resection Colostomy LIF Flush Formed faeces Perm: AP resection Temp: Hartmann’s Discussion © Alasdair Scott, 2012 Pt. preparation Complications Rehabilitation Classification 115 Stomas: Key Facts Ileostomy Located in RIF Small bowel content is an irritant ileostomies are spouted Type End Ileostomy Loop Ileostomy Features Permanent: Panproctocolectomy (no anus) Temporary: Total colectomy Temporary stoma to defunction distal bowel May be supported by bridge or rod Surgery Proctocolectomy Total colectomy c̄ later IPAA Anterior resection Bowel rest Indication UC FAP Colon Ca Crohn’s Colostomy Located in LIF or RUQ (transverse loop colostomy) Flush with skin surface Type End Colostomy Loop Colostomy Features Permanent: AP resection (no anus) Temporary: Hartmann’s RUQ: Defunctioning transverse colostomy to cover a distal anastomosis: rarely performed LIF: Apex of sigmoid exteriorised w/o a resection for inoperable Ca rectum which is likely to obstruct. Patient Preparation Explanation of the indications and complications Liaison c̄ Stoma Nurse to arrange siting Siting Done c̄ pt. standing up to ensure pt. can see stoma. Avoid Bony prominences Skin folds/creases Waistline Old wounds Umbilicus Choose A site that is accessible to the pt. Ideally below the belt line for concealment w/i the rectus: ↓ risk of hernia or prolapse Complications Early Haemorrhage Ischaemia High output (can → ↓K+) Loperamide ± codeine to thicken output Parastomal abscess Stoma retraction Delayed Parastomal hernia (on lateral side) Obstruction: adhesions or herniation through lateral space around stoma Dermatitis (esp. ileostomy) Stoma prolapse Stenosis or stricture Fistulae Psychosexual dysfunction © Alasdair Scott, 2012 Surgery AP resection Hartmann’s Anterior resection Decompression Indication Colon Ca Diverticulits Colon Ca Patient Rehabilitation Aim for a normal diet Good skin care and cleanliness Psychosexual support Classification Anatomical classification according to location Tracheostomy Gastroscopy Jejunostomy Ileostomy Caecostomy Colostomy Urostomy Urostomy Fashioned following total cystectomy Ileal Conduit: Incontinent Ureters attached to a portion of resected ileum which is exteriorised as a spouted stoma. Bowel continuity maintained by primary anastomosis. Urine collected in a bag. Indiana Pouch: Continent Pouch created from ~2ft of resected ascending colon and portion of ileum which includes the ileocaecal valve. Ureters anastomosed to colonic end and ileal end exteriorised as spouted stoma. Ileocaecal valve prevents urinary leak from the pouch. Pt. self-catheterises to drain pouch. 116 Surgical Scars Look For Examination Give correct technical name where possible Otherwise describe anatomical location and orientation Comment on whether it looks well healed or recently formed Ask pt. to lift head off bed and cough: incisional hernia Don’t guess the operation unless asked to by the examiner. Name Midline Laparotomy - Skin - Camper’s fascia - Scarpa’s fascia - Linea alba - Transversalis fascia - Pre-peritoneal fat - Peritoneum Right Paramedian Appearance Stoma and drain scars: bowel surgery Vasc. access scars: AAA, graft Use Emergency - Perforated DU - Trauma - Ruptured AAA - Hartmann’s Elective - Colectomy - AAA - Vascular bypass Not commonly used now as closure techniques have improved Features Good access Bloodless line Minimal nerve and muscle injury Long midline scar ↑ pain Closure: PDS, blunt J shaped suture, en mass Jenkin’s Rule - Length of suture = 4x length of incision - 1cm bite, 1cm apart ~3cm lateral to the midline Rectus sheath opened and rectus displaced laterally. - Rectus slips back to cover the defect Time consuming Kocher’s (Subcostal) Open cholecystectomy L Kocher’s used for splenectomy Rooftop Hepatobiliary Surgery - liver Tx - Whipple’s - liver resection Gastric surgery Pfannenstiel Gynae surgery Lower Urinary Tract McBurney’s: Oblique Lanz: Transverse Appendicectomy Muscle splitting - Skin - Camper’s fascia - Scarpa’s fascia - External oblique - Internal oblique - Transversus - Transversalis fascia - Pre-peritoneal fat - Peritoneum © Alasdair Scott, 2012 Longer to close than a midline as the incision is closed in 3 layers. May be modified to a Mercedes Benz incision Lanz incision favoured: hidden in skin crease Both follow Langer’s Lines Risk of injury to ilioinguinal and iliohypogastric nerves may predispose to inguinal hernia 117 Name Thoracoabdominal Use Oesophagogastrectomy Features Transverse Muscle Splitting Right Hemicolectomy Limited access cf. midline incision ↓ damage to rectus - segmental nerve supply means the muscle can be cut transversely w/o weakening Inguinal Hernia Incision Open Inguinal Hernia Repair Incision over the inguinal ligament Follow’s Langer’s Lines Orchidectomy High rates of chronic neuropathic pain Emergency Femoral Hernia Allows inspection of peritoneal cavity c̄ easy conversion to laparotomy if necessary McEvedy - Modified Appearance “Half” a Pfannenstiel Loin Nephrectomy Vascular Access Bypass Embolectomy EVAR / TEVAR Stent Insertion Femoral Endarterectomy Angioplasty © Alasdair Scott, 2012 118 Colonic Resections Right Hemicolectomy Features Indication: tumours in the cecum and proximal ascending colon Scars Midline laparotomy Transverse muscle splitting Laparoscopic ports Stoma: none Anastomosis: ileocolic Differential: midline laparotomy differential Extended Right Hemicolectomy Features Indication: tumours in the distal ascending colon or transverse colon Scars Midline laparotomy Laparoscopic ports Stoma: none Anastomosis: ileocolic Differential: midline laparotomy differential Left Hemicolectomy Features Indication: tumours in the descending colon Scars Midline laparotomy Laparoscopic ports Stoma: none Anastomosis: colocolic Differential: midline laparotomy differential Hartmann’s Procedure Features Indication: obstruction or perforation 2O to sigmoid tumour or diverticulitis Description Emergency procedure Sigmoid colectomy Proximal bowel exteriorised as an end colostomy Distal bowel oversewn to form a rectal stump May be reversed after 3-6mo (>50% of pts. aren’t reversed) Scars Midline laparotomy May have previous stoma scar in LIF if it has been revered Stoma: single lumen colostomy in the LIF Differential: APR © Alasdair Scott, 2012 119 Abdomino-Perineal Resection Features Indication: rectal Ca < 4-5cm from anal verge Description Sigmoid, rectum and mesorectal nodes removed via abdominal incision Anus removed via perineal incision Scars Midline laparotomy No anus Stoma: single lumen colostomy in the LIF Differential Hartmann’s Procedure Anterior Resection Features Indication: rectal Ca >4-5cm from anal verge Description Excision of part of the rectum and sigmoid colon May be high or low depending on site of tumour + Total mesorectal excision for tumours in the middle or lower 1/3 Rectal blood supply is poor colorectal anastomosis covered by temporary loop ileostomy. Scars Midline laparotomy Laparoscopic port scars Scar or stoma in RIF Stoma: double lumen loop ileostomy in RIF Differential End Ileostomy Panproctocolectomy: UC, FAP Subtotal colectomy: acute severe UC Cystectomy and ileal conduit Loop Ileostomy Temporary diversion: Crohn’s © Alasdair Scott, 2012 120 Subtotal Colectomy Features Indication: acute severe UC Description All colon excised except distal sigmoid and rectum. Temporary end ileostomy Rectosigmoid stump may be exteriorised as mucus fistula Followed after ~3mo by either: Completion proctectomy + IPAA or permanent end ileostomy Ileorectal anastomosis (IRA) Scars Midline laparotomy Laparoscopic port sites Stoma: single lumen end ileostomy in RIF Differential End Ileostomy Panproctocolectomy: UC, FAP Cystectomy and ileal conduit Loop Ileostomy Temporary diversion: anterior resection or Crohn’s Panproctocolectomy Features Indication: UC or FAP Description All colon, rectum and anus removed Permanent end ileostomy Scars Midline laparotomy Laparoscopic port sites Stoma: single lumen end ileostomy in RIF Differential End Ileostomy Subtotal colectomy: acute severe UC Cystectomy and ileal conduit Loop Ileostomy Temporary diversion: anterior resection or Crohn’s © Alasdair Scott, 2012 121 Inflammatory Bowel Disease Examination Viva Inspection Hx Peripheral General Malnutrition or wt. loss Cushingoid, evidence of steroids Hands Clubbing Leukonychia Beau’s lines Eyes Pale conjunctivae Iritis, episcleritis Mouth Aphthous ulcers Gingival hypertrophy Legs Erythema nodosum Pyoderma gangrenosum Abdominal Scars May be multiple and atypical in Crohn’s Healed stoma sites Healed drain sites Stomas or healed stoma sites Enterocutaneous fistulae Palpation Tenderness RIF mass ± hepatomegaly Completion Inspect perineum for perianal disease Examine for extra-intestinal features Large joint monoarthritis Sacroileitis Bronchiectasis Symptoms Wt. loss, fever, malaise Abdominal pain Diarrhoea, blood and/or mucus PR Peri-anal disease: abscesses, fistulae Extra-intestinal: EN, arthritis, iritis, gallstones, PSC Therapy Admissions Medical therapy Operations Ix Bloods FBC: ↓Hb, ↑WCC U+E: dehydration, ↓K LFTs: ↓ albumin, deranged LFTs Clotting: ↑INR ↑ ESR, ↑ CRP: used to monitor activity Stool Culture + CDT: exclude infective causes Campy, Yersinia, Shigella, C. diff, TB Imaging AXR Toxic megacolon in UC O Bowel obstruction 2 to strictures in Crohn’s Contrast studies Ba or Gastrograffin enema in UC Small bowel follow–through in Crohn’s MRI: perianal disease in Crohn’s Endoscopy Ileocolonoscopy + regional biopsy Ix of choice Safe in acute disease Distinguish UC from Crohn’s Assess disease severity Wireless capsule endoscopy Discussion © Alasdair Scott, 2012 Clinicopathological distinction between UC and CD Main complications of IBD Extra-intestinal manifestations Definition of severe exacerbation Indications for surgery in UC and CD Surgical options for UC and CD 122 IBD: Key Facts for Surgery Complications Pathology UC Crohn’s Distribution Strictures Rectum + colon ± backwash ileitis Contiguous No Mouth to anus esp. terminal ileum Skip lesions Yes Microscopic Inflammation Ulceration Mucosal Shallow, broad Fibrosis Granulomas Pseudoplyps Fistulae None None Marked No Transmural Deep, thin, serpiginous → cobblestone mucosa Marked Present Minimal Yes Macroscopic Location UC Crohn’s Toxic megacolon Fistulae - esp. perianal Perianal abscess Strictures Malabsorption Haemorrhage Malignancy - CRC - Cholangiocarcinoma VTE Hepatobiliary Fatty liver Chronic hepatitis → cirrhosis Gallstones PSC (3% of UC) and cholangiocarcinoma Definition of Severe Exacerbation Surgical Options for UC Truelove and Witts Criteria Principles Symptoms BMs >6 x /d Large PR bleed Systemic Signs ↑ HR >90 Pyrexia >37.8 Laboratory Values ↓ Hb <10.5g/dL ESR >30mm/Hr Toxic dilatation Curative intent IPAA or IRA offer continence but suffer from ↑ BMs, pouchitis and risk of malignancy. Subtotal colectomy c̄ end ileostomy ± mucus fistula Indications for Surgery Operation of choice for acute severe colitis All colon excised except distal sigmoid and rectum. Rectosigmoid stump may be exteriorised as mucus fistula Followed after ~3mo by either: Completion proctectomy + IPAA or end ileostomy Ileorectal anastomosis (IRA) Proctocolectomy and permanent ileostomy UC Acute Severe Megacolon: ≥6cm on AXR Perforation: 30-40% mortality Severe GI bleeding Chronic Medical Mx failure Malignancy Maturation failure in children Rectum and anus excised c̄ all of colon Only performed for pt. choice or when pt. is not suitable for restorative procedure ↑ age Impaired sphincter function Restorative Proctocolectomy Proctocolectomy or completion proctectomy Construction of ileal reservoir which is anastomosed to anus Ileal pouch anal anastomosis (IPAA) Usually covered by a diverting loop ileostomy May check pouch anastomosis c̄ water soluble contrast Crohn’s Acute Severe Obstruction 2O to stenosis Perforation Severe GI bleeding Chronic Peri-anal disease: fistulae and abscesses Intra-abdominal abscesses Medical Mx failure: temporary defunction Entero-cutaneous fistulae © Alasdair Scott, 2012 Surgical Options for Crohn’s Principles 80% need ≥1 operation in their life Never curative Must be as conservative as possible: avoid short gut syndrome Procedures Ileocaecectomy Drainage of intra-abdominal abscesses Stricturoplasty Colonic defunctioning for failed medical therapy Occasionally a subtotal colectomy + permanent end ileostomy may be needed. 123 Surgical Jaundice Examination Viva Inspection Hx Peripheral Cachexia Signs of chronic liver disease Look in sclera and at frenulum (of tongue): jaundice Palpate for Virchow’s node Post-hepatic: most likely in surgery exam Dark urine, pale stools Itching Stones: RUQ pain or biliary colic Malignancy Wt. ↓ and ↓ appetite Change in bowel habit: esp. steatorrhoea Back pain Abdominal Ascites Dilated abdominal veins Umbilical / para-umbilical hernia Hepatic EtOH intake Foreign travel: Hep A Blood transfusions, IVDU, Sex: Hep B and C Sore throat: EBV Drug Hx: OCP, Abx, neuroleptics, OTCs Palpation Hepatomegaly Splenomegaly Palpable gallbladder Pre-hepatic Anaemia: tired, SOB, palpitations, ankle swelling FH Completion Check temp: obstruction complicated by infection Dipstick urine: bilirubin, urobilinogen, Hb Commonest Differentials Pre-hepatic Unconjugated Haemolysis - SCD - HS - AIHA Hepatic Un- / Conjugated Hepatitis - EtOH - Viral Decompensated CLD Drugs - Paracetamol - Statins - Anti-TB Post-hepatic Conjugated Gallstones Ca Head Panc LNs @ porta hepatis - Ca - TB Definition Yellow discoloration of the skin and mucus membranes caused by the accumulation of bile pigments. Normal BR = 3-17uM Visible jaundice = 50uM (3 x ULN) Very high levels usually have a hepatic cause Ix of Post-Hepatic Jaundice Urine ↑↑BR, no urobilinogen Bloods LFTs: ↑cBR ↑↑↑ALP, ↑AST/ALT, ↑GGT Clotting: ↑ INR Auto-Abs: AMA, pANCA, ANA Imaging US Underlying hepatic disease Dilated ducts: >6mm Gallstones Pancreatic mass or lymphadenopathy MRCP ERCP CT: staging tumour Causes of Post-Op Jaundice Pre-hepatic: haemolysis after a transfusion Hepatic Halogenated anaesthetics Sepsis Intra- / post-operative hypotension Post-hepatic Biliary injury: e.g. in Lap Chole © Alasdair Scott, 2012 124 Right Iliac Fossa Mass Examination Viva Inspection Hx Peripheral Hands and Arms Clubbing AV fistula Eyes Pallor Jaundice Neck LNs: e.g. Virchow’s node Abdominal Asymmetry Scars: esp. Rutherford Morrison Palpation Differentiate mass before continuing c̄ rest of exam Site, size, shape Consistency: firm, soft Edge: well or poorly defined Surface: smooth, irregular, nodular Relations Can you get above and below it? Does it move c̄ respiration? Attachment to skin Attachment to abdominal muscles Ask pt. to lift head while palpating Cough impulse Inguinal nodes Percussion Resonant: e.g. bowel or retroperitoneal Dull Duration of mass and how it has changed Abdominal symptoms Gynae symptoms Systemic symptoms Co-morbidities and previous operations Differential of RIF Mass Commonest Transplanted kidney Caecal Ca Crohn’s or Appendix mass or abscess Incisional hernia (mass c̄ scar) Skin and Soft Tissues Sebaceous cyst Lipoma Sarcoma Gynaecological Ovarian tumour Fibroid uterus Male Reproductive System Undescended or ectopic testis ± tumour Urological System Ectopic kidney Bladder diverticulum Blood Vessels External iliac or common iliac artery aneurysm LNs Radiological Ix Auscultation Bruits Bowel sounds US CT 1st line Distinguish bowel mass from pelvic mass ID any LNs and abnormal blood vessels Best to view abdominal wall masses Good to assess extent of intra-abdominal malignancy MRI Good for pelvic masses Other Ix © Alasdair Scott, 2012 Bloods FBC, U+E, LFT Mantoux CXR, AXR US / CT guided biopsy 125 Abdominal Masses Epigastric RUQ Abdominal Wall and Soft Tissue Sebaceous cyst Lipoma Sarcoma Intra-abdominal Hepatomegaly Hepatic mass: cyst, abscess, hepatoma Gallbladder Right kidney Abdominal Wall and Soft Tissue Sebaceous cyst Lipoma Epigastric hernia Sarcoma GIT Gastric Ca Hepatomegaly Ca pancreas Pancreatic pseudocyst Vascular AAA LUQ Abdominal Wall and Soft Tissue Sebaceous cyst Lipoma Sarcoma Intra-abdominal Splenomegaly Left kidney Gastric Ca RIF LIF Commonest Transplanted kidney Caecal Ca Crohn’s or Appendix mass or abscess Incisional hernia (mass c̄ scar) Commonest Faecal mass Colon Ca Diverticular Mass Transplanted Kidney Abdominal Wall and Soft Tissue Sebaceous cyst Lipoma Sarcoma Abdominal Wall and Soft Tissue Sebaceous cyst Lipoma Sarcoma Gynaecological Ovarian tumour Fibroid uterus Gynaecological Ovarian tumour Fibroid uterus Male Reproductive System Undescended or ectopic testis ± tumour Male Reproductive System Undescended or ectopic testis ± tumour Urological System Ectopic kidney Bladder diverticulum Blood Vessels External iliac or common iliac artery aneurysm LNs Suprapubic Abdominal Wall and Soft Tissue Sebaceous cyst Lipoma Sarcoma Urological Bladder Bladder mass Bladder diverticulum Urological System Ectopic kidney Bladder diverticulum Blood Vessels External iliac or common iliac artery aneurysm LNs Gynae Gravid uterus Fibroid uterus Ovarian Tumour © Alasdair Scott, 2012 126 Breast Contents Breast Examination ................................................................................................................................................................ 128 Breast Lumps ......................................................................................................................................................................... 129 Post-Mastectomy Breast ........................................................................................................................................................ 130 Breast Reconstruction ........................................................................................................................................................... 131 Gynaecomastia ...................................................................................................................................................................... 132 © Alasdair Scott, 2012 127 Breast Examination Set Up Request a chaperone Expose pt. from waist up and start c̄ her sitting up Ask pt. if they have noticed lump in breast: which breast? Inspection Breast Positions Hands relaxed by sides Leaning forwards Hands behind head Hands pressing hips Shape: asymmetry, masses Skin Scars: periareolar, submammary Radiotherapy tattoos Eczema, erythema, ulceration Peau d’orange, dimpling Accessory nipples: look along the milk line Nipple: inversion, discharge, discolouration, destruction Peripheral Axillae: LN dissection Arm: lymphoedema Abdomen / Suprapubic: DIEP or TRAM flap harvest Back: lat-dorsi flap harvest Palpation Breast Pt. @ 45O with hand behind head, start c̄ normal breast Any pain or discharge? Palpate each breast quadrant, subareolar area and the axillary tail If lump found: SSS CCC TTTT FS Ask pt. to push inwards on her hip to assess tethering Axillae Right axilla: hold pts. right arm with your right hand (and vice versa) Gently palpate axillary node: Apical Anterior Posterior Medial Lateral Supraclavicular and cervical nodes Lateral Chest Wall Inflatable port sites for implants Completion Palpate / percuss spine for tenderness, masses Examine abdomen for hepatomegaly Percuss and auscultate lungs for signs of mets: e.g. effusion © Alasdair Scott, 2012 128 Breast Lumps Ix of a Lump: Triple Assessment Classification of Breast Disease Hx and Examination Malignant Presentation Lump Breast pain Skin or nipple changes Mets Bones: bone pain, #s Lungs: dyspnoea Liver: abdo pain Brain: headache, seizures Risk Factors: BOOBYS Bleeding: early menarche (<13), late menopause (>55) Oestrogen: OCP, HRT Other breast disease: previous Ca, DCIS, atypia Breast feeding: protective Young ‘un: first child >35yrs (↑ risk) Sister: FH of Ca breast Radiology <35yrs: US >35yrs: US + mammography Oblique and craniocaudal MRI Multifocal disease Cosmetic implants Pathology Solid lump: Tru-Cut biopsy Cystic lump: FNAC Reassure if clear fluid Send cytology if bloody fluid Core biopsy residual mass Core biopsy if +ve cytology Other Ix Bloods: FBC, LFTs, ESR, bone profile Imaging: help staging CXR Liver US CT scan Breast MRI Bone scan and PET-CT May need wire-guided excision biopsy © Alasdair Scott, 2012 Ductal carcinoma NOS: ~70% of cancers Lobular carcinoma: ~20% of cancers Other: mucinous, medullary, papillary Phylloides tumours Benign Congenital Supernumerary nipples Hypoplasia Stromal Tumour: fibroadenomas Epithelial Lesions ANDI: fibroadenosis, cysts Papillomas Cystic disease Inflammatory Lesions Mastitis Abscess Fat necrosis Duct ectasia and periductal mastitis Commonest Single Breast Lumps Fibroadenoma Cyst Fat necrosis Cancer Features of a Malignant Lump Irregular, nodular surface Poorly defined edge Hard / scirrhous consistency Painless Fixation to skin or chest wall Nipple involvement 129 Post-Mastectomy Breast Examination Viva Inspection Hx Note asymmetry Describe scar Look at surrounding skin and axilla Evidence of radiotherapy Ask pt. to press her hips: pec major present Arm lymphoedema Palpate Remaining breast Axilla Supraclavicular fossa What happened? Presentation Risk factors Surgery How are things now? Post-op pain, anaesthetised skin (@ T1) Arm swelling Psych Symptoms of mets What will happen in the future? Chemo and radiotherapy Reconstruction Indications for Mastectomy Completion Palpate / percuss spine for tenderness, masses Examine abdomen for hepatomegaly Percuss and auscultate lungs for signs of mets Modern oncological breast surgery involves breast conservation wherever possible. Typically WLE and SNB Mastectomy may be considered if Pt. preference Multifocal disease Large lump in small breast: e.g. >4cm Large area DCIS: e.g. >4cm Nipple involvement Types of Mastectomy Simple mastectomy Removal of breast alone: commonest type Still need to Mx the axilla Other types not performed as no survival benefit Modified radical: breast, pec minor, axilla Radical: breast, pec minor and major, axilla Extended radical: radical + internal mammary LNs Pt. Preparation Physical Mark side prior to anaesthetic Explanation including use of suction drain to close cavity and ↓ risk of haematoma or seroma formation. There will be an anaesthetised patch of skin in the upper medial part of the arm Division of intercostobrachial nerve (T1) Psychological Pts. should see breast care nurse pre-op Options for reconstruction should be discussed Drain Removal Post-op Typically 2 drains: axilla and site of surgery Left for 3-5d or until draining <50ml/d Pts. can go home c̄ drains and district nurse support. © Alasdair Scott, 2012 130 Breast Reconstruction Examination Viva Inspection Hx General Note asymmetry Arm lymphoedema Evidence of radiotherapy Evidence of axillary clearance / radiotherapy Flap Reconstruction Scars extend over back or abdominal wall Recess on back where lat dorsi has been removed Ask pt. to lift head of bead (when lying supine) to see recess in the rectus muscle Implant Reconstruction Rounder shape than normal breast Breast usually lies higher Becker implant may have palpable SC filling port in the axilla As for mastectomy Timing Immediate: single operation Delayed ↑ pt. decision time Avoidance of detrimental effects of adjuvant therapy Techniques Tissue expansion reconstruction c̄ implants Autologous tissue reconstruction c̄ myocutaneous flaps Implants Advantages Simpler technique Primary or delayed Disadvantages Cosmetic result not as good Requires plenty of available skin Lies higher than other breast Late Complications - Capsular contracture - Implant leakage - Infection requiring removal Myocutaneous Flaps Advantages Useful when little remaining skin or muscle Good cosmetic result Primary or delayed Disadvantages ↑ blood loss ↑ op time and complications Use of rectus impossible if pt. has had abdo surgery Late complications - flap necrosis and infection Types of Myocutaneous Flap Latissimus Dorsi myocutaneous flap Pedicled: skin, fat, muscle and blood supply LD mobilised and tunnelled medially to form neo-breast Supplied by thoracodorsal A. via subscapular A. Often augmented c̄ an implant Transverse Rectus Abdominis Myocutaneous (TRAM) Flap Pedicled: inf. epigastric A. Or free: attached to internal thoracic A No implant necessary and combined tummy tuck CI if poor circulation: smokers, obese, PVD, DM Risk of abdominal hernia Deep Inferior Epigastric Perforator (DIEP) Flap Evolution of the TRAM flap Free: skin and fat only, no muscle Spares the rectus: ↓ pain and ↓ risk of hernia May not be possible if small perforators © Alasdair Scott, 2012 131 Gynaecomastia Examination Viva Inspect Causes of Gynaecomastia: 3Ps Unilateral or bilateral breast swelling Palpation Must feel glandular tissue to differentiate from pseudogynaecomastia (fat). Completion Look for cause External genitalia Thyroid examination Evidence of CLD Visual fields Take Hx Prescription and recreational drugs Potions Recreational Marijuana Diazepam Anabolic steroids Prescription Spiro Digoxin Captopril Verapamil Ranitidine Physiological Especially at puberty where breast tissue may be unilaterally or bilaterally enlarged. Usually resolves by adulthood Pathological ↓ androgen production: hypogonadism Hyperprolactinaemia Renal failure Testicular atrophy Post-orchitis Bilat torsion Klinefelter’s: XXY ↑ oestrogens ↑ production Sex-cord stromal tumours Lung Ca ↑ peripheral aromatisation Chronic liver disease Thyrotoxicosis Ix Testicular Ca: AFP, βhCG Hypogonadism: testosterone and LH levels Prolactinoma: PRL level TFTs Suggestions of Breast Ca © Alasdair Scott, 2012 1% of breast Ca occurs in men Older age FH Unilateral gynaecomastia Firm or hard nodules w/i breast tissue Axillary LNs 132 Vascular Contents Venous Examination .............................................................................................................................................................. 134 Varicose Veins ....................................................................................................................................................................... 135 Post-Phlebitic Limb: Chronic Venous Insufficiency ............................................................................................................... 136 Arterial Examination ............................................................................................................................................................... 137 Chronic Limb Ischaemia ........................................................................................................................................................ 138 Abdominal Aortic Aneurysm .................................................................................................................................................. 139 Popliteal Aneurysm ................................................................................................................................................................ 140 Aneurysms: Key Facts ........................................................................................................................................................... 140 False Aneurysm ..................................................................................................................................................................... 141 Amputations ........................................................................................................................................................................... 141 Carotid Artery Disease ........................................................................................................................................................... 142 Vascular Effects of the Diabetic Foot..................................................................................................................................... 143 Gangrene ............................................................................................................................................................................... 143 Raynaud’s Phenomenon ....................................................................................................................................................... 144 Thoracic Outlet Obstruction ................................................................................................................................................... 144 Peripheral Ulcer Examination ................................................................................................................................................ 145 Venous Ulcer ......................................................................................................................................................................... 146 Ischaemic Ulcer ..................................................................................................................................................................... 146 Neuropathic Ulcer .................................................................................................................................................................. 147 Lymphoedema ....................................................................................................................................................................... 148 © Alasdair Scott, 2012 133 Venous Examination Set-Up Expose pt. from groin to toes Examine c̄ pt. standing Inspection Skin Changes and Scars Scars: esp. in groin creases Chronic Venous Insufficiency: HAS LEGS Haemosiderosis Atrophie blanche Swelling Lipodermatosclerosis Eczema Gaiter ulcers Stars, venous Site and Size of Varicosities Medial and above knee: great saphenous Posterior and below knee: short saphenous Few varicosities + prominent skin changes: calf perforators Palpation Great Saphenous Vein Anatomy SFJ - 2 finger breaths below and lat. to pubic tubercle Mid-thigh perforator of Hunter Calf perforators of Cockett - draining into post. ach vein Great Saphenous - Passing anterior to medial malleolus Pitting oedema Palpate varicosities Tenderness: thrombophlebitis Induration: thrombosis Saphena varix @ SFJ Two finger breaths below and lateral to pubic tubercle Bluish tinge, disappears on lying flat May have cough impulse (Cruveihier’s Sign) Tap test (Chevrier’s Test) Tap proximally and feel for impulse distally Distal pulses: PTA, DPA Auscultation Bruit over varicosity: AVM Doppler Place probe @ SFJ/SPJ and squeeze calf Normally hear only half second whoosh when pressure released. Long whoosh suggests valve incompetence. Completion Trendelenberg or Tourniquet Test Examine abdomen + PR Pelvis in females Tourniquet / Trendelenberg’s Test Position pt. supine, elevate leg and milk veins. Apply tourniquet as high up thigh as possible or compress SFJ Stand pt. Controlled: incompetence above tourniquet Release tourniquet to confirm filling Uncontrolled: incompetence below tourniquet e.g. SPJ or calf perforators Repeat test with tourniquet just below knee © Alasdair Scott, 2012 134 Varicose Veins Pathophysiology One-way flow from sup → deep maintained by valves Valve failure → ↑ pressure in sup veins → varicosity Fibrous tissue invades tunica intima and media, breaking up the SM Prevents maintenance of vascular tone → dilatation 3 main sites where valve incompetence occurs SFJ: 3cm below and 3cm lateral to pubic tubercle SPJ: popliteal fossa Perforators: draining GSV Chronic venous insufficiency is distinct and results from incompetency in the deep system itself. May co-exist c̄ varicose veins Causes Primary / Idiopathic: 95% Prolonged standing Pregnancy Obesity OCP Secondary: 5% Valve destruction: DVT, thrombophlebitis Obstruction: pelvic mass, DVT AVM Syndromes Syndromes Klippel-Trenaunay-Weber Abnormality of the deep venous system Varicose veins Port wine stain Bony and soft tissue hypertrophy of the limbs Parkes-Weber Syndrome Multiple AVMs c̄ limb hypertrophy AVMs can → high-output HF Symptoms Cosmetic defect Pain, cramping, heaviness Tingling Bleeding: may be severe Swelling Ix Duplex US Indications Previous Hx of DVT Signs of chronic venous insufficiency Suggests deep venous disease for which the varicosity may be the collateral. Recurrent varicose veins Difficulty in deciding whether GSV or SSV is incompetent Preparation for Surgery FBC, U+E, clotting, G+S CXR ECG © Alasdair Scott, 2012 Definition Tortuous, dilated veins of the superficial venous system CEAP Classification Classification of Chronic Venous Disease Clinical signs (1-6 + sympto or asympto) Etiology Anatomy Pathophysiology Mx Conservative Lose wt. and regular exercise Avoid prolonged standing Class II graduated Compression Stockings 18-24mmHg Skin care: emollients Minimally Invasive Therapies Indications Small below knee varicosities not involving GSV or SSV Techniques Local or GA Injection sclerotherapy: 1% Na tetradecyl sulphate Endovenous laser or radiofrequency ablation Post-Operatively Compression bandage for 24hrs Compression stockings for 1mo Surgery Indications SFJ incompetence Major perforator incompetence Symptomatic: ulceration, skin changes, pain Procedures Trendelenberg: saphenofemoral ligation SSV ligation: in the popliteal fossa LSV stripping: no longer performed due to potential for saphenous nerve damage. Multiple Avulsions Cockett’s Operation: perforator ligation SEPS: Subfascial Endoscopic Perforator Surgery Post-op Bandage tightly and elevate for 24h D/C c̄ compression stockings and told to walk daily. Complications Early Haematoma: esp. groin Wound sepsis Nerve damage: e.g. long saphenous Late Superficial thrombophlebitis DVT Recurrence: 10% @ 5yrs 135 Post-Phlebitic Limb: Chronic Venous Insufficiency Examination Viva Inspection Hx HAS LEGS Haemosiderosis Atrophie blanche Swelling Lipodermatosclerosis Eczema Gaiter ulcers Stars, venous Varicose Veins Often present as collaterals bypassing the obstruction Palpation Pitting oedema Completion Perthes’ Test Abdominal exam + PR Pelvic exam in women Perthes’ Test Tests for deep venous occlusion High tourniquet around pts. leg + walking for 5min Deep obstruction → swelling and pain Previous DVT Orthopaedic surgery Complicated obstetric course Venous Claudication “Bursting” pain in the leg after exercise Relieved by rest and elevation of limb (cf. arterial) Causes Reflux following DVT: 90% Obstruction following DVT: 10% Venous Gangrene Rare complication of DVT in the iliofemoral segment 3 phases Phlegmasia alba dolens: white leg Phlegmasia cerulea dolens: blue leg Gangrene 2O to acute ischaemia Lipodermatosclerosis Panniculitis Venous HTN → extravasation of fibrin and red cells Poor tissue oxygenation → ulceration and fat necrosis Inverted champagne bottle appearance Chronic inflam → fibrosis → distal shrinkage Venous obstruction → proximal leg swelling Ix of Deep Venous Disease Duplex: reflux and occlusion Venography Ascending: patency and perforator incompetence Descending: reflux Ambulatory venous pressures Surgical Options Reflux Trahere Transplantation Transplant segment of axillary vein c̄ valve into deep venous system of leg Wrap c̄ PTFE cuff Kistner Operation Valvuloplasty of damaged valves Obstruction Palma operation Use contralateral GSV and anastomose to femoral vein to bypass iliofemoral obstruction © Alasdair Scott, 2012 136 Arterial Examination Lower Limb Upper Limb Set-Up Inspection Expose pt. from groin to toes Start @ the toes unless told otherwise Inspection Colour: pallor or cyanosis Trophic changes Muscle atrophy, Shiny dry skin Nail dystrophy and loss of hair Ulcers Between toes Base of 1st and 5th metatarsals Heel (ask re. pain before lifting…) Gangrene Scars Medial thigh and leg Vascular access (vertical groin) Midline sternotomy or laparotomy Axilla Palpation Temperature: feel c̄ backs of both hands Pulses: as present, reduced or absent Feel pulses bilaterally if possible for comparison Aorta: just above the umbilicus Femoral: mid-inguinal point Popliteal: between the heads of gastrocnemius Dorsalis pedis: lat. to extensor hallux longus tendon (absent in ~5% of people) Post tib: postero-inferior to medial malleolus Graft + distal pulses: is the graft patent? Capillary refill: <2s Hands and Arms Tobacco staining Colour Trophic changes Ulcers and gangrene Scars Face and Neck Corneal arcus, xanthelasma High arched palate Scar over carotids Chest Mid-line sternotomy scar Palpation Temperature Pulses: rate and rhythm Radial: lat. to FCR tendon @ wrist Ulna: lat. to FCU Brachial: medial to biceps tendon Carotid: ant. to SCM at the thyroid cartilage Radio-radial delay Radio-femoral delay Stenosis, coarctation, dissection Auscultate for Bruits Carotids Graft Completion Auscultate for Bruits Aorta and renal vessels Iliac: midway from umbilicus to inguinal ligament Femoral Course of SFA if popliteal can’t be palpated Grafts Examine the rest of the vascular system Assess the pulses with a hand-held doppler Cardiovascular and neurological examination BP of both arms Difference >20mmHg suggests stenosis, CoA or dissection. Buerger’s Angle and Test Lift leg to 45O and observe for pallor and venous guttering <20O = severe ischaemia Buerger’s Test: reactive hyperaemia on lowering the leg 2O to vasodilatation of the microcirculation in response to ischaemia Completion Examine the rest of the vascular system Assess the pulses with a hand-held doppler Measure the ABPI Cardiovascular and neurological examination DM neuropathy Valve disease © Alasdair Scott, 2012 137 Chronic Limb Ischaemia Presentation Ix Intermittent Claudication Cramping pain after walking a fixed distance Pain rapidly relieved by rest Calf pain = superficial femoral disease (commonest) Buttock pain = iliac disease: internal or common Bedside ABPI ± exercise ABPI (↓ by 0.2 in PVD) ECG Critical Limb Ischaemia: Fontaine 3 or 4 Ankle artery pressure <50mmHg (toe <30mmHg) And either: Persistent rest pain requiring analgesia for ≥2wks Ulceration or gangrene Rest pain Especially @ night Usually felt in the foot Pt. hangs foot out of bed Due to ↓ CO and loss of gravity help Tissue loss: ulceration, gangrene Leriche’s Syndrome: Aortoiliac Occlusive Disease Atherosclerotic occlusion of abdominal aorta and iliacs Triad of: Buttock claudication and wasting Erectile dysfunction Absent femoral pulses Intermittent Claudication vs. Spinal Claudication Path Site Pain Exam Arterial Vascular insufficiency Usually calf or buttock Set distance: reproducible Worse up stairs Cramping Eased by standing rest Evidence of PVD Spinal Nerve compression Ill-defined / whole leg Positional onset Better up stairs Burning pain Eased sitting forward Normal Blood FBC: anaemia may worsen symptoms U+E: renovascular disease Glucose: DM Lipids: hypercholesterolaemia Imaging: assess site, extent and distal run-off Colour duplex US CT / MR angiogram: gadolinium contrast Digital subtraction angiography Invasive not commonly used for Dx only. Used for therapeutic angioplasty or stenting Non-Surgical Mx Walk through pain: may use exercise programs Optimise risk factor profile Smoking cessation Control HTN, lipids and BP Lose wt. Antiplatelet and statin for all pts. Foot care Prognosis ~80% improve or stay the same 20% deteriorate, 1% lose their limb 60% mortality @ 5yrs: cardiovascular disease Interventional Angioplasty ± stenting Chemical sympathectomy Surgical Mx Endarterectomy Bypass grafting Amputation Risk Factors Modifiable Smoking BP DM control Hyperlipidaemia ↓ exercise Non-modifiable FHx PMH Male ↑ age Ethnicity Bypass Grafting Indications V. short claudication distance (e.g. <100m) Symptoms greatly affecting pts. QoL Development of rest pain Classification Clinical Calcification: CRF, DM Normal Asymptomatic Claudication Rest pain Ulceration and gangrene Fontaine Fontaine 1 Fontaine 2 Fontaine 3 Fontaine 4 ABPI >1.4 >1 0.8-1 0.6-0.8 0.3-0.6 <0.3 Pre-op Assessment Need good optimisation as likely to have cardiorespiratory co-morbidities. Practicalities Need good proximal supply and distal run-off Saphenous vein grafts preferred below the IL More distal grafts have ↑ rates of thrombosis Classification Anatomical: fem-pop, fem-distal, aortobifemoral Extra-anatomical: axillo-fem / -bifem, fem-fem crossover © Alasdair Scott, 2012 138 Abdominal Aortic Aneurysm Examination Viva Inspection Hx Midline pulsating mass: esp. on deep inspiration Abdominal scars Presentation: usually incidental finding Symptoms Abdominal or back pain Tenderness over aneurysm Distal embolic events Leak Other peripheral or cardio-vascular disease CV risk factors Palpation Pulsatile and expasile mass on deep palpation in the epigastrium. Expansile: moves fingers laterally c̄ each pulse Estimate size using lateral margins of index fingers Palpate for other aneurysms Course of common iliacs Femorals Popliteals Definition Abnormal dilatation of the abdominal aorta to >50% of its normal diameter = ≥3cm Risk Factors Auscultation for Bruits Aortic Renal Iliac Completion Cardiovascular system Peripheral vascular system Ix Male Age >60yrs (prevalence: ~5%) Smoking HTN FHx Abdo US: used for surveillance and screening CT/MRI: Ix of choice Angio: useful to delineate relationship of renal arteries When to Operate Repair aims to avoid complications Operate when risk of complications, esp. rupture, > risk of surgery. Indications Symptomatic aneurysms Asymptomatic ≥5.5cm Expanding >1cm/yr Complications Death MI Renal failure Spinal or mesenteric ischaemia Distal trash from thromboembolism Anastomotic leak Graft infection Aortoenteric fistula Operative Mortality Open Emergency: 50% But only 50% reach hospital alive Elective: 5% (lower in specialist centres) ↑ if IHD, LVF, CRF, COPD EVAR: 1% EVAR © Alasdair Scott, 2012 ↓ perioperative mortality (1% vs. 5%) No mortality benefit after 5yrs Significant late complications: e.g. endoleaks EVAR not better cf. medical care in unfit pts. 139 Popliteal Aneurysm Aneurysms: Key Facts Examination Definition Inspection Pulsatile popliteal swelling Ischaemic patches on foot: emboli Palpation If asked just to examine the pulses, start c̄ femorals Comment on presence and character Aneurysmal popliteals are very easily palpable Popliteal aneurysm ≥2cm in diameter 50% bilateral: examine the other knee Distal pulses may not be palpable Completion Complete peripheral vascular examination Abdominal examination for AAA Present in 50% Viva Presentation Popliteal aneurysms represent 80% of all non-aortic aneurysms Lump behind the knee 50% present c̄ distal limb ischaemia: thromboembolism <10% rupture Mx Surgical Indications Symptomatic aneurysms Aneurysms containing thrombus Aneurysms >2cm Mx Acute: embolectomy or fem-distal bypass Stable: excision bypass Abnormal dilatation of a blood vessel > 50% of its normal diameter. Classification True Aneurysm Dilatation of a blood vessel involving all layers of the wall and is >50% of its normal diameter Two different morphologies Fusiform: e.g AAA Saccular: e.g Berry aneurysm False Aneurysm Collection of blood around a vessel wall that communicates c̄ the vessel lumen. Usually iatrogenic: puncture, cannulation Dissection Vessel dilatation caused by blood splaying apart the media to form a channel w/i the vessel wall. Used to be classified as “dissecting aneurysms” but not technically correct as represents a different pathology. Causes Congenital ADPKD → Berry aneurysms Marfan’s, Ehlers Danlos Acquired Atherosclerosis Trauma: e.g penetrating trauma Inflammatory: Takayasu’s aortitis, HSP Infection Mycotic: SBE Tertiary syphilis (esp. thoracic) Salmonella typhi: assoc. c̄ AAA Complications Rupture Thrombosis Distal embolisation Pressure: DVT, oesophagus, nutcracker syndrome Fistula: IVC, intestine UK Small Aneurysms Trial Powell, Greenhalgh et al., Lancet 1996 Asymptomatic aneurysms between 4-5.5cm should be monitored. Aneurysms ≥ 5.5cm should undergo repair. Risk of rupture <5.5cm: 1% /yr ≥5.5cm: 10% /yr Screening MASS trial revealed 50% ↓ aneurysm-related mortality in males aged 65-74 screened c̄ US. UK men offered one-time US screen @ 65yrs © Alasdair Scott, 2012 140 False Aneurysm Amputations Examination Examination Inspection Inspection Pulsatile mass in the groin Surgical scars or puncture sites Palpation Pulsatile, expansile swelling Define the anatomical location Usually mid-inguinal point Palpate distal pulses Auscultate for a Bruit Viva True vs. False Aneurysm Often useful to draw this Aneurysm is an abnormal dilatation of a blood vessel Stump anatomical level Stump health Evidence of chronic vascular disease Palpation Soft tissue under skin should move freely over the bone Proximal pulses Move Ask pt. to actively flex and extend the knee joint above the amputation Many pts. have a fixed flexion deformity after BKA Ask to look @ prosthesis and see pt. walk c̄ it. Completion Examine other limb for signs of PVD True: involves all layers of arterial wall False Collection of blood around a vessel wall that communicates c̄ the lumen i.e. a pulsating haematoma Fibrous tissue forms around haematoma → false sac which communicated c̄ vessel lumen Aetiology Occurs after vessel a laceration / puncture Traumatic or iatrogenic Usually in the common femoral A. following puncture for a radiological procedure. Mx Ultrasound compression Thrombin injection Surgical repair Viva Indications: 4D’s Dead: PVD (90%), thrombangiitis obliterans Dangerous: sepsis, malignancy Damaged: trauma, burns, frostbite Damned nuisance: pain, neurological damage Considerations Psychosocial implications Future mobility: 200% more effort to walk after AKA OT involvement Level of amputation must be high enough to ensure healing of the stump. But ↑ mortality c̄ AKA vs. BKA Procedures Toe: with the metatarsal head Ray Amputation Incision on either side of affected digit to the base of the metatarsal Creates a V shape and narrows foot Heals by 2O intention Used if necrosis of digit and muscles of the foot. Forefoot: transmetatarsal Below knee: aids rehabilitation Above knee Hindquarter / hemipelvicotomy Complications Pts. often have co-morbidities → ↑ risk Esp. CVD Early © Alasdair Scott, 2012 Mortality: ~20% for AK Haemorrhage Infection: cellulitis, gangrene, osteomyelitis Scar contractures → fixed flexion Phantom limb pain: try gabapentin Poor stump shape inhibiting prosthesis 141 Carotid Artery Disease Examination Viva Two Possible Options Hx Previous TIA: esp. amaurosis fugax Amaurosis fugax will be ipsilateral to stenosis Previous stroke Other CV and PV disease CV risk factors Carotid Endarterectomy Scar Beneath the angle of the mandible Parallel to SCM Carotid Bruit Along course of common carotid: medial to SCM in the anterior triangle Best heard in expiration Completion If heard bilaterally, listen over precordium to exclude AS Full peripheral vascular examination Neurological examination: cerebrovascular event Ix Bedside Urine dip: proteinuria in renovascular disease ECG: ischaemic changes, AF Blood FBC: anaemia may worsen symptoms U+E: renovascular disease Glucose: DM Lipids: hypercholesterolaemia Imaging Carotid Duplex US: site and size of stenosis MRA: more detailed carotid anatomy Echo: CVD CT or MRI brain: infarcts Complications of Carotid Stenosis TIA Sudden neurological deficit of vascular origin lasting <24h (usually lasts <1h) c̄ complete recovery Microemboli from the plaque Stroke Sudden neuro deficit of vascular origin lasting >24h 3rd leading cause of death in the West Carotid atheroembolism is the commonest cause Mx Pts c̄ severe symptomatic stenosis should have CE ASAP after the neurological event. Conservative Aspirin or clopidogrel Control risk factors Surgical: Endarterectomy Symptomatic (ECST, NASCET) ≥70% (5% stroke risk per yr) ≥50% if low risk (<3%, typically <75yrs) 6 fold reduction in stroke rate @ 3yrs Asymptomatic (ACAS, ACST) ≥60% benefit if low risk Complications 3% risk of stroke or death Haematoma MI Nerve injury Hypoglossal: ipsilateral tongue deviation Great auricular: numb ear lobe Recurrent laryngeal: hoarse voice, bovine cough © Alasdair Scott, 2012 142 Vascular Effects of the Diabetic Foot Gangrene Examination Examination Inspection Inspection Wet Dry Bilateral signs of chronic arterial disease Amputations: esp. digits Charcot joints Ulceration Palpation Pulses may be preserved due to calcification ↓ sensation in stocking distribution Putrefaction Ill-defined, spreading edge Dry and shrunken Well demarcated Features of PVD Palpation Temperature Distal pulses Completion Examine the peripheral nervous system Urinalysis: proteinuria Fundoscopy: retinopathy Viva Definition Irreversible tissue death from poor vascular supply. Viva Classification Wet: tissue death + infection Dry: tissue death only Pregangrene: tissue on the brink of gangrene Hx Control Complications Claudication Previous operations Other vascular disease Other vascular risk factors Causes of Gangrene DM: commonest Embolism and thrombosis E.g. foot trash in AAA repair Raynaud’s Thrombangiitis obliterans Injury: extreme cold, heat, trauma or pressure Diabetic Foot Syndrome Microvascular disease Macrovascular disease Predominantly below knee cf. non-DM occlusive disease. Neuropathy Infection and osteomyelitis Aetiology of Diabetic Ulcers Mx Take cultures Debridement (including amputation) Benzylpenicillin ± clindamycin Synergistic Gangrene Neuropathic: 45-60% Ischaemic: 10% Mixed neuroischaemic: 25-45% Involves aerobes + anaerobes Fournier’s: perineum Meleney’s: post-op ulceration Both progress rapidly to necrotizing fasciitis and myositis Preservation of Pulses Calcification in the walls of the vessels: mediasclerosis Preserves the pulses until late → abnormally high ABPI Use toe pressure instead: <30mmHg Similar effect is seen in CRF Problems c̄ Diabetics Undergoing Angiography Often have a degree of renal impairment which can be dramatically worsened c̄ contrast agents. Metformin must be stopped prior to the procedure to prevent lactic acidosis © Alasdair Scott, 2012 Gas Gangrene Clostridium perfringes myositis RFs: DM, trauma, malignancy Presentation Toxaemia Crepitus from surgical emphysema Bubbly brown pus Rx Debridement (may need amputation) Benzylpenicillin + metronidazole Hyperbaric O2 143 Raynaud’s Phenomenon Thoracic Outlet Obstruction Examination Examination Key Questions Inspection Arm: ↓ venous outflow Oedema: pitting Cyanosis Pallor Hand: ↓ arterial inflow Raynaud’s Patchy gangrene Fingertip necrosis Hand and Arm: neurological complications Complete claw hand T1 sensory loss Radicular pain What is the main problem you have c̄ your hands? When do symptoms occur? Is it precipitated by any specific weather conditions? Can you describe the colour changes your fingers go through? Inspection Usually bilateral Dry, red skin Brittle nails Ulceration or gangrene on the pulps Palpation Normal radial pulse Palpation Palpate for cervical rib above the supraclavicular fossa Disappearance of radial pulse on abduction and external rotation of arm Completion Ask about symptoms and look for signs of secondary causes of Raynaud’s phenomenon Viva Viva Differential of Thoracic Outlet Obstruction Arterial: Raynaud’s Venous: axillary vein thrombosis or trauma Neurological: cervical spondylosis, Pancoast’s tumour Definitions Phenomenon: characteristic cold-induced changes assoc. c̄ vasospasm Disease: primary Raynaud’s phenomenon occurring in isolation Syndrome: secondary Raynaud’s phenomenon assoc. c̄ other disease Colour Changes Cold- or emotion-induced White → Blue → Crimson Pathogenesis Ix X-Ray: cervical rib Duplex in abduction Arteriograms of subclavian artery may show kinking Nerve conduction studies Aetiology Congenital: cervical rib Acquired: clavicle #, pathological enlargement of 1st rib Overactive α sympathetic receptors Or, fixed obstruction in vessel wall Secondary Causes: BADCAT Blood: polycythaemia, cryoglobulinemia, cold agglutinin Arterial: atherosclerosis, thrombangiitis obliterans Drugs: β-B, OCP, ergotamine Cervical rib: → thoracic outlet obstruction Autoimmune: SLE, RA, SS Trauma: vibration injury Mx Conservative Wear gloves and avoid cold Stop smoking Medical CCBs: e.g. nifedipine IV prostacyclin Surgical Cervical sympathectomy Amputate gangrenous digits © Alasdair Scott, 2012 144 Peripheral Ulcer Examination Inspection: BEDS 3s Ulcer Edges Site Size Shape Base Granulation tissue Slough Floor: bone, tendon, fascia Edge Sloping: healing – usually venous Punched-out: ischaemic or neuropathic Undermined: pressure necrosis or TB Rolled: BCC Everted: SCC Discharge Serous Purulent Sanguinous Surroundings Cellulitis Excoriations Sensate LNs Palpation Limb pulses Sensation around the ulcer Completion Examine contralateral side Distal neurovascular examination ABPI: must be >0.8 for compression bandaging Causes Venous: 75% Arterial: 2% Mixed arteriovenous: 15% Neuropathic Pressure Vasculitis: e.g. PAN Malignancy: SCC, Marjolin’s Systemic: pyoderma gangrenosum © Alasdair Scott, 2012 145 Venous Ulcer Ischaemic Ulcer Examination Examination Inspection Inspection Site: medial malleolus Size: variable, can be v. large Base Shallow Pink granulation tissue Edge: sloping edge Discharge: seropurulent Surroundings Signs of chronic venous insufficiency: HAS LEGS Varicose veins Palpation Painless Warm surroundings Sensate Viva Causes Valvular disease Varicose veins Deep vein reflux: e.g. post DVT Outflow obstruction Often post DVT Muscle pump failure Stroke Neuromuscular disease Ix ABPI if possible Duplex ultrasonography Biopsy may be necessary: esp. if persistent ulcer Look for malignant change: Marjolin’s ulcer Mx Refer to leg ulcer community clinic General Measures Optimise risk factors: nutrition, smoking Analgesia Bed rest + elevate leg 4 layer compression bandaging if ABPI >0.8 Construction Non-adherent dressing + wool bandage Crepe bandage Blue line bandage: light compression Cohesive compression bandage Change bandages 1-2 x/wk Once healed use grade 2 compression stockings for life Other Options Pentoxyfylline PO: ↑ microcirculatory blood flow Desloughing c̄ larval therapy Topical antiseptics: Manuka honey Surgical: split-thickness skin grafts © Alasdair Scott, 2012 Site Tips of and between toes Base of 1st and 5th metatarsals Heel Size: mm-cm Base Deep: may be down to bone May be slough but no granulation tissue Edge: punched-out Surroundings Pale Trophic changes Palpation Painful Cold surroundings Sensate Reduced or absent distal pulses Viva Causes Large Vessel Atherosclerosis Thombangiitis obliterans (Buerger’s Disease) Small Vessel DM PAN RA Mx Analgesia Can be extremely painful Combination of drugs administered regularly Based on the analgesic ladder: titrate to pain Paracetamol + NSAIDs Weak opioids: e.g. codeine Strong opioids: e.g. morphine Risk Factor Modification Stop smoking Control DM and HTN Optimise lipids Medical Avoid drugs which may worsen symptoms: e.g. β-B Low-dose aspirin IV prostaglandins Chemical lumbar sympathectomy Chemical ablation of L1-L4 paravertebral ganglia Inhibit sympathetic-mediated vasoconstriction Relief of pain Often unsuccessful in DM: neuropathy 146 Neuropathic Ulcer Examination Inspection Site: pressure areas Tips of and between toes Base of 1st and 5th metatarsals Heel Size: variable Shape: corresponds to shape of pressure point Base: may be deep c̄ bone exposure Edge: punched-out Surroundings Skin looks normal Charcot’s joints May be signs of PVD if co-existent arterial disease Extras Blood sugar testing marks on fingers Insulin injection marks on the abdomen Palpation Normal temperature Normal peripheral pulses Absent sensation around ulcer Absent ankle jerks Completion Full peripheral vascular exam Cranial and peripheral neuro exam Viva Causes Any cause of peripheral neuropathy DM Alcohol B12 CRF Drugs: e.g. isoniazid, vincristine Every vasculitis Pathophysiology Sensory neuropathy: distal limb damage not felt by pt. Motor neuropathy: wasting of intrinsic foot muscles and an altered foot shape Claw toes + prominent metatarsal heads Autonomic neuropathy: ↓ sweating → cracked, dry foot © Alasdair Scott, 2012 147 Lymphoedema Examination Viva Inspection Limb Swelling Differential Gross leg swelling Bilateral or unilateral Thick, indurated skin Lichenification Yellow nail discoloration Palpation Initially: pitting Later: non-pitting Palpate for inguinal nodes Completion Exclude RHF ↑ JVP Hepatomegaly Take a Hx: esp. re hereditary conditions Bilateral ↑ Venous Pressure RHF Venous insufficiency Drugs: e.g. nifedipine ↓ Oncotic Pressure Nephrotic syndrome Hepatic failure Protein losing enteropathy Lymphoedema Myxoedema Hyper- / hypo-thyroidism Unilateral Venous insufficiency DVT Infection or inflammation Lymphoedema Lymphoedema Collection of interstitial fluid due to blockage or absence of lymphatics. Primary Congenital absence of lymphatics May or may not be familial Presentation Congenital: evident from birth Praecox: after birth but <35yrs Tarda: >35yrs Milroy’s Syndrome: 2% of primary lymphoedema Familial AD subtype of congenital lymphoedema F>M Secondary: FIIT Fibrosis: e.g. post-radiotherapy Infiltration Ca: prostate, lymphoma Filariasis: Wuchereria bancrofti Infection: TB Trauma: block dissection of lymphatics Mx © Alasdair Scott, 2012 Conservative Skin care Grade 3 compression stockings Treat or prevent cellulitis Physio Raise leg as much as possible Surgical Debulking operation Bypass procedures 148 Musculoskeletal Contents Hip Examination ..................................................................................................................................................................... 150 Knee Examination .................................................................................................................................................................. 151 Osteoarthritis: Key Facts ....................................................................................................................................................... 152 Hip Arthroplasty ..................................................................................................................................................................... 153 Knee Arthroplasty .................................................................................................................................................................. 154 Knee Ligament Damage ........................................................................................................................................................ 154 Hallux Valgus ......................................................................................................................................................................... 155 Lesser Toe Deformities .......................................................................................................................................................... 155 Charcot Joints ........................................................................................................................................................................ 156 Gait ........................................................................................................................................................................................ 157 Popliteal Swellings ................................................................................................................................................................. 157 Shoulder Examination ............................................................................................................................................................ 158 Hand Examination.................................................................................................................................................................. 159 Dupuytren’s Contracture ........................................................................................................................................................ 160 Carpal Tunnel Syndrome ....................................................................................................................................................... 161 Rheumatoid Hands ................................................................................................................................................................ 162 OA Hands .............................................................................................................................................................................. 163 Ulnar Nerve Palsy .................................................................................................................................................................. 164 Radial Nerve Palsy ................................................................................................................................................................ 164 Mallet Finger .......................................................................................................................................................................... 165 Trigger Finger ........................................................................................................................................................................ 165 Back Examination .................................................................................................................................................................. 166 Lumbar Disc Herniation ......................................................................................................................................................... 167 © Alasdair Scott, 2012 149 Hip Examination Set-Up Pt. should be in their underwear Note presence of walking aids Start c̄ pt. standing Look Gait Antalgic: ↓ stance-phase on affected side Trendelenberg: sideways lurch of trunk to bring body wt. over limb Examine Pt. Standing Skin Scars: esp. lateral and posterior Bruising, erythema Shape Soft tissue or bony swelling Muscle wasting: esp. gluteals Deformity: coxa vara or valga Trendelenberg Test Negative: pelvis tilts slightly up on unsupported side. Positive: pelvis drops on the unsupported side Pathology of contralateral abductor mechanism Examine Pt. Supine Square the pelvis and measure leg lengths True length: ASIS to medial malleolus Apparent length: xiphisternum to medial malleolus Galeazzi Test: tibial vs. femoral shortening. +ve Trendelenberg Test Abductor wasting 2O chronic pain Sup. gluteal N. injury: surgery Structural: DDH True Shortening #: e.g. NOF Hip dislocation Growth disturbance of tibia/fibula Osteomyelitis, #s Surgery: e.g. THR SUFE Perthes’ disease Feel Palpate for tenderness: ASIS, iliac crests and pubic rami Greater trochanter Move Abduction: 45 Adduction: 30 Flexion: 130 Internal rotation: 20 External rotation: 45 Thomas’ Test Caution if hip arthroplasty on non-test side Forced flexion can → dislocation Assesses for fixed flexion deformity Masked by compensatory movement in pelvis or lumbar spine Obliterate lumbar lordosis Angle between thigh and bed = fixed flexion deformity Completion Examine the knee and spine Perform a neurovascular assessment (esp. pulses). AP and lateral radiographs of the pelvis © Alasdair Scott, 2012 Apparent Shortening Scoliosis of the spine Hip pain Pain from hip joint usually felt in groin or ant. thigh. Pain @ back of hip is usually referred from lumbar spine. Fixed Flexion Deformity Osteoarthritis # NOF Features in OA of the Hip ± Trendelenberg gait or +ve Test Pain Stiffness ↓ ROM: esp. internal rotation Fixed flexion deformity 150 Knee Examination Set-Up Pt. should be in their underwear Note presence of walking aids Start c̄ pt. standing Look Gait Antalgic Stiff: pelvis rises during swing phase Varus thrust: medial collateral Valgus thrust: lateral collateral Examine Pt. Standing Skin Scars: arthroscopic ports, KR (midline longitudinal), menisectomy Bruising, erythema Shape Swelling: knee and popliteal fossa (Baker’s Cyst) Muscle wasting: quads, hamstrings Measure quads circumference @ 15cm from tib tuberosity Deformity Genu vara (bow legged): OA Genu valga (knock-knee): RA Examine Pt. Supine Feel Temperature Effusion: sweep test and ballot Palpate Position knees @ 90O Joint line for tenderness: meniscal pathology Patella, tendon and tibial tuberosity Popliteal fossa Knee Effusion Synovial fluid: synovitis Blood 90% = ACL rupture PCL rupture, intra-articular #, meniscal tear Bleeding diathesis Pus: septic arthritis Move Straight leg raise Extensor lag Hyperextension Fixed flexion deformity Passive flexion of knee while palpating joint for crepitus Normal range = 0-140 Special Tests Cruciate Ligaments Ant + Post drawer tests: observe for posterior sag first = PCL tear Lachman’s: ACL, more sensitive cf. drawer test (Pivot shift test: only do in theatre under anaesthetic) Collateral Ligaments In partial flexion ~30O (relax the joint capsule) and full extension Valgus stress (medial lig.) and varus stress (lateral lig.) Menisci (McMurray test) (Apley grind test) Completion Examine the hip and ankle. Perform a neurovascular assessment: esp. pulses Standing AP and lateral and skyline radiographs of the knee © Alasdair Scott, 2012 151 Osteoarthritis: Key Facts Definition Degenerative joint disorder in which there is progressive loss of hyaline cartilage and new bone formation at the joint surface and its margin. Mx MDT GP, physio, OT, dietician, orthopod Aetiology / Risk Factors Conservative Lifestyle: ↓ wt., ↑ exercise Physio: muscle strengthening OT: walking aids, supportive footwear, home mods Classification Medical Analgesia Paracetamol NSAIDs: e.g. arthrotec (diclofenac + misoprostol) Tramol Joint injection: local anaesthetic and steroids Age (80% >75yrs) Obesity Joint abnormality Primary: no underlying cause Secondary: obesity, joint abnormality Symptoms Affects: knees, hips, DIPs, PIPs, thumb CMC Pain Worse c̄ movement Background rest/night pain Worse @ end of day Stiffness Especially after rest: joint “gelling” Lasts ~30min (e.g. AM) Deformity: e.g. genu varus ↓ ROM Pathophysiology Softening of articular cartilage → fraying and fissuring of smooth surface → underlying bone exposure. Subchondral bone becomes sclerotic c̄ cysts. Proliferation and ossification of cartilage in unstressed areas → osteophytes. Capsular fibrosis → stiff joints. Ix Exclude Rheumatological Disease FBC ESR RF, ANA Check Renal Function Important before prescribing NSAIDs: esp. in elderly U+E X-ray Changes Loss of joint space Osteophytes Subchondral cysts Subchondral sclerosis Deformity © Alasdair Scott, 2012 Surgical Arthroscopic Washout Mainly knees Trim cartilage Remove loose bodies. Realignment Osteotomy Small area of bone cut out Useful in younger (<50yrs) pts. c̄ medial knee OA High tibial valgus osteotomy redistributes wt. to lateral part of joint. Arthroplasty: replacement (or excision) Arthrodesis: last resort for pain management Novel Techniques Microfracture: stem cell release → fibro-cartilage formation Autologous chondrocyte implantation OA vs. RA OA Pathology - Degenerative - Negative serology RA Pathology - Inflammatory - Positive serology Clinical - Asymmetric - Large joints - Early AM stiffness <30min - Worse PM - Hands: DIPJs and PIPJs - No extra-articular features Clinical - Symmetric - Small joints - Early AM stiffness >1hr - Worse AM - Hands: PIPJs and MCPJs - Extra-articular features Radiology - Osteophytes - Subchondral sclerosis - Subchondral cysts - Mild deformity Radiology - Soft tissue swelling - Periarticular osteopenia - Periarticular erosions - Severe deformity 152 Hip Arthroplasty History Pioneered in 60s by Sir John Charnley Types THR Replace femoral head, neck and acetabulum Usually elective joint arthroplasty Hemi-arthroplasty Replace femoral head and neck only May be uni- or bi-polar Resurfacing Replacement of surface of femoral head Complications Immediate Nerve injury Fracture Cement reaction Early DVT: up to 50% w/o prophylaxis Deep infection: 0.5-1.5% Must remove metalwork before revision. Dislocation (3%): squatting and adduction Late Loosening: septic or aseptic Leg length discrepancy Metalosis Revision: most replacements last 10-15yrs Prostheses Cemented: e.g. Thompson Recommended by NICE Uncemented: e.g. Austin-Moore Easier to revise (may be useful in younger pts.) Techniques Posterior Approach Access joint and capsule posteriorly, reflecting of the short external rotators. Gives good access May have higher dislocation rate Sciatic N. may be injured → foot drop Anterolateral Approach Incision over greater trochanter, dividing fascia lata. Abductors are reflected to access joint capsule. May have lower dislocation risk Sup. Gluteal N. may be injured → Trendelenberg gait Preventing DVT DVT is commonest complication of THR Peak incidence @ 5-10d post-op Pre-Op TED stocking Aggressive optimisation: esp. hydration Stop OCP Intra-Op Minimise length of surgery Using pneumatic compression boots Post-Op LMWH: also rivaroxaban and dabigatran Early mobilisation Good analgesia Physio Adequate hydration Hip Resurfacing Advantages Metal-on-metal bearings wear less Larger head → ↓ dislocation / ↑ stability Preserve bone stock making revision easier Disadvantages Cobalt and chromium metal ion release may cause pathology (e.g. leukaemia) Risk of NOF # if mal-positioned Indications May be used in young (<65), active people who are expected to outlive the replacement. © Alasdair Scott, 2012 153 Knee Arthroplasty Knee Ligament Damage Types Haemarthrosis Differential Can be uni- or bi-compartmental Cemented: UK Uncemented: Europe Aim Primary goal is to reduce pain The Surgery Performed under tourniquet PCL is usually preserved ACL is usually sacrificed Prosthesis is specifically designed to provide some compensation for this Metal prosthesis and an ethylene articular disc. Patella surface can be re-surfaced. Knee bending after 2-3 days. 10 days hospital stay Complications Immediate Fracture Cement reaction Vascular injury SFA Popliteal and genicular vessels Nerve injury Peroneal nerve → foot drop (1%) Early DVT Up to 50-70% w/o prophylaxis 25% c̄ prophylaxis Deep infection: 0.5-15% Must remove metalwork before revision. Late Loosening: septic or aseptic Periprosthetic #s ↓ ROM and instability Loss of ACL Surgical Mx of RA in the Knee Indicated in failed medical Mx Synovectomy and debridement Can be done arthroscopically Removal of pannus and cartilage Supracondylar osteotomy Total knee arthroplasty Primary Spontaneous w/o trauma May be 2O to coagulopathy Secondary to Trauma Immediate knee swelling 80% ACL injury 10% 2O to patellar dislocation 10% Meniscal tear Capsular tear Osteochondral # Knee Locking Differential Meniscal tear Cruciate ligament injury Osteochondritis dissecans: adolescents Loose body Presentation of ACL Injury Assoc. c̄ deceleration and rotational movements Hears a pop or feels something tear Inability to continue sport or activity Haemarthrosis w/i 4-6h Instability / giving way following injury Unhappy Triad of O’Donoghue ACL MCL Medial Meniscus Mx of Meniscal Tear Depends on Age Chronicity of injury Location and type of tear Non-Surgical Symptomatic Rx: e.g. analgesia Surgical Arthroscopic or open Partial meniscectomy Meniscal repair Mx of ACL Rupture Non-Surgical Rest and phyio to strengthen quads and hamstrings Not enough stability for many sports Surgical Gold-standard is autograft repair Usually semitendinosus ± gracilis (can use patella) Tendon threaded through heads of tibia and femur and held using screws. © Alasdair Scott, 2012 154 Hallux Valgus Lesser Toe Deformities Examination Look Hallux Unilateral or bilateral Estimate degree of valgus Rotation: nail faces medially Bunion Prominence of 1st metatarsal head ± bursa Evidence of inflammation: bursitis Extras Hammer toes Callosities on heel Feel Inflammation of bunion Localised tenderness e.g. OA of MTPJs Aetiology Imbalance between intrinsic and extrinsic toe muscles Intrinsic: lumbricals Extrinsic: long flexors and extensors F>M Commoner in pts. c̄ RA ↑ c̄ age Move Assess ROM of toe joints Completion Assess ROM of other toe joints Assess gait Examine shoes: abnormal weight-bearing Mx Non-surgical: appropriate footwear Surgical correction Flexor-to-extensor tendon transfer Arthrodesis Resection of proximal phalangeal head Viva Aetiology Familial tendency ↑ enclosed / pointed shoes Assoc. c̄ RA Ix Wt. bearing x-rays Degree of valgus OA of MTPJ Mx Non-surgical Appropriate footwear: wide, soft Physio Surgical Bunionectomy 1st metatarsal realignment osteotomy Excision arthroplasty © Alasdair Scott, 2012 155 Charcot Joints Examination Look Swelling Deformity Pressure necrosis Feel Joint is not tender or warm May feel crepitus Subluxation or dislocation of the joint Move Abnormal Completion Neurological examination of the limb Esp. pain and proprioception Dip urine for glucose Viva Definition Progressive destructive joint arthropathy 2O to disturbance of sensory innervation to the joint Painless deformed joint resulting from repetitive minor trauma. Causes Peripheral DM Peripheral N. injury Leprosy Central Syringomyelia Tabes dorsalis © Alasdair Scott, 2012 156 Gait Popliteal Swellings Phases Examination 1. 2. 3. 4. Initial contact / heel strike Stance Toe off Swing Abnormalities Gait Antalgic Trendelenberg Parkinsonian Broad-based High stepping Spastic Description ↓ stance ↑ swing Hips dip Shoulders lurch to contralateral side Slow initiation Shuffling steps Poor arm swing Slow turn Lurches to one side Foot strikes c̄ ball and slaps the ground Internal rotation Hips adducted Cause Pain Weak abductors Describe the Lump Visible popliteal swelling Describe as for lump SSS CCC TTTT FPS Pulsatile: swelling overlying popliteal A. Expansile: popliteal aneurysm Fluctuant and transilluminable: cystic Completion Continue c̄ knee exam: signs of OA Neurovascular assessment Parkinsonism Viva Cerebellar lesions Common peroneal L5 disc UMN Differential Skin + s/c tissue: lipoma Artery: popliteal aneurysm Vein: saphena varix @ SPJ Nerve: tibial nerve neuroma Enlarged bursae Above knee joint line Assoc. c̄ semimembranosus Baker’s Cyst Baker’s Cyst Posterior herniation of knee joint capsule Assoc. c̄ degenerative knee joint disease Located below knee joint line Dx: US Mx © Alasdair Scott, 2012 Aspiration possible: high recurrence 157 Shoulder Examination Set-Up Expose chest and shoulders Look Inspect shoulder girdle and axilla Skin: scars, bruising, erythema Shape Wasting: deltoid, supra- and infra-spinatous Clavicular deformity Joint swelling Deformity Joint dislocation Scapula location Winging of the scapula Feel Temperature Along clavicle from SCJ to ACJ Acromion and coracoid (2cm inf. + med. to clavicle tip) Biceps tendon in bicipital groove Scapular spine Humoral head and greater and lesser tuberosities. Winging: Seratus Anterior Weakness Long-thoracic nerve damage: e.g. axillary surgery Upper brachial plexus injury Muscular dystrophy: e.g. FSH Shoulder Differential: Pain ± ↓ROM Rotator cuff: tear, tendonitis Subacromial bursitis Adhesive capsulitis (frozen shoulder) Joints: synovitis, OA, dislocation Humeral head: #, dislocation Referred pain from diaphragm Move: active then passive Functional screen Ask pt. to put both hands behind the head Ask pt. to reach behind back and touch shoulder blades Abduction and adduction First 25O of abduction is supraspinatous, rest is deltoid Palpate acromion tip during abduction to determine GHJ movement Abduction at GHJ is ~80O, rest is scapula rotation. Pain 60-120O = impingement or rotator cuff tendonitis 140-180 = AC osteoarthritis Flexion and Extension Internal and external rotation External rotation most commonly ↓d in frozen shoulder Special Tests Jobe’s Empty Can Test: Supraspinatus Shoulder flexed @ 90O, thumb pointing down, forced flexion of shoulder Infraspinatus + Teres Minor Elbow flexed @ 90O, forced external rotation of shoulder Gerber’s Lift Off: Subscapularis Dorsum of hand placed against lumbar spine, pt. attempts to lift hand off against resistance Scarf Test: AC Joint Dysfunction Place pt’s. hand on contralateral shoulder Examiner pushes pt’s. flexed elbow posteriorly, eliciting discomfort Hawkin’s Test Shoulder: Impingement O Shoulder and elbow flexed @ 90 . Examiner pushes hand down Apprehension Test: GHJ Instability Shoulder is abducted and externally rotated to 90O Apprehension occurs as shoulder is slowly externally rotated Completion Examine the cervical spine and elbow © Perform a neurovascular assessment Alasdair Scott, 2012 158 Hand Examination Set-Up Expose pts. arms up to elbow Lay hands on a pillow Look Dorsum and palms Skin Scars: palm and carpal tunnel Erythema Calcinosis and tophi Ulceration Ganglia Muscle Wasting Median nerve: thenar eminence st Ulnar nerve: 1 dorsal interroseus Joints Swellings Heberden’s: distal Bouchard’s: proximal Deformities RA Boutonniere’s Swan neck Z-thumb Ulnar deviation @ the MCPs MCP volar subluxation Dupuytron’s Trigger Finger Mallet Finger Claw Hand Nails Onycholysis Pitting Subungual hyperkeratosis Extras Elbows: rheumatoid nodules, psoriatic plaques Scalp and behind ears: psoriatic plaques Feel Temperature Joints: pain and swelling Tendons: palm for nodules or thickening. Muscles Median nerve: thenar eminence Ulnar nerve: 1st dorsal interroseus Autonomous Sensory Areas Median: pulps of index and middle fingers Ulnar: pulp of little finger Radial: 1st dorsal web space Move Wrist Prayer and reverse prayer positions Check that fingers are opposed in prayer position Thumb Abduction Fingers Abduction and adduction (cross fingers for luck) Opposition Grip Autonomous Motor Supply Median: abductor pollicis brevis Ulnar: 1st dorsal interosseous Radial: MCP extension Function Fasten and unfasten button. Pick up coin from flat surface Write name Special Tests Median Nerve Tinel’s Phalen’s Ulnar Nerve Froment’s: flexion of thumb @ IPJ = weak ADductor policis de Quervain’s tenosynovitis (APL + EPB tendonitis) Finkelstein’s Completion Neurovascular status of the upper limb. AP and lateral radiographs © Alasdair Scott, 2012 159 Dupuytren’s Contracture Examination Viva Look Hx Often bilateral and symmetrical Tethering or pitting of palmar skin Visible tendon cords Surgical scars: Z plasties Fixed flexion of MCP and PIP joints Usually little and ring fingers Garrods Pads Thickening of dorsal skin over PIPJ Feel Palpate thickened tendons Note fixation to skin Move Assess ROM Note fixed deformities by loss of passive ROM Ask pt. to lay hand flat on table Function Ask pt. to pick up a coin and do up a button Completion Abdominal exam for signs of CLD Hx and Drug chart Other features of diffuse fibromatosis Differential Skin contracture: look for scar from previous wound Congenital contracture of little finger Ulnar nerve palsy: ↓ sensation, +ve Froment’s sign Associations Function Previous therapy Other features of diffuse fibromatosis Associations: BAD FIBERS Bent penis: Peyronie’s (3%) AIDS DM FH: AD Idiopathic : commonest Booze: ALD Epilepsy meds and epilepsy: phenytoin Reidel’s thyroiditis and other fibromatoses Ledderhose disease Fibrosis of plantar aponeurosis 5% c̄ dupuytren’s Retroperitoneal fibrosis Smoking Pathophysiology Local microvessel ischaemia → ↑ xanthine oxidase activity → ROS production. ROS → myofibroblast proliferation → collagen 3 formation Chronic inflammation → continued fibrosis Non-Surgical Mx Physiotherapy Allopurinol may help Surgical Mx Indication MCP or PIP contracture >30O Procedures Fasciotomy Partial fasciectomy Z-plasty to lengthen wound Post-op physio Can damage ulnar nerve Often recurs Dermofasciectomy + full-thickness skin grafting Lowest risk of recurrence Arthrodesis and amputation © Alasdair Scott, 2012 160 Carpal Tunnel Syndrome Examination Viva Look Hx Wasting of thenar eminence Scars from previous surgery over flexor retinaculum Symptoms Tingling / pain in thumb, index and middle fingers Pain worse @ night or after repetitive actions Relieved by shaking / flicking hand Causes Hypothyroidism Pregnancy RA Previous treatments Feel Test light touch over finger pulps Test light touch over the thenar eminence Move Opponens pollicis Abductor pollicis brevis Special Tests Causes: I WRIST Tinel’s Phalen’s Completion Hx Look for underlying cause and associations Differential More proximal median nerve lesion Cervical root lesion E.g. cervical disc herniation Ix Idiopathic: commonest Water: pregnancy, hypothyroidism Radial # Inflammation: RA, gout Soft tissue swelling: lipomas, acromegaly, amyloidosis Toxic: DM, EtOH Not typically necessary Nerve conduction studies Determine lesion location Determine lesion severity US Non-surgical Mx Mx of underlying cause Wrist splints Neutral position Esp. @ night Local steroid injections Surgical Mx Carpal tunnel decompression by division of the flexor retinaculum Complications Scar formation: high risk for hypertrophic or keloid Scar tenderness: up to 40% Nerve injury Palmar cutaneous branch of the median nerve Motor branch to the thenar muscles Failure to relieve symptoms Other Locations of Median Nerve Entrapment Pronator syndrome Entrapment between two heads of pronator teres Anterior interroseous syndrome Compression of the anterior interosseous branch by the deep head of pronator teres Muscle weakness only Pronator quadratus FPL Radial half of FDP © Alasdair Scott, 2012 161 Rheumatoid Hands Examination Viva Look Hx Hands Skin: joint erythema, palmar erythema Joint Swelling: MCPs and PIPs Muscle wasting: interossei, thenar eminence Deformity 1. Ulnar deviation @ the MCPs 2. Boutonniere deformity 3. Swan neck deformity 4. Z thumb 5. MCP volar subluxation Symptoms Early morning stiffness Pain Swelling Affect on life Extra-articular features: aNTI CCP Or RF Treatments tried so far + any complications Extra-Articular Features: aNTI CCP Or RF Surgical Scars Wrist: carpal tunnel release Thumb: joint replacement Dorsum: tendon transfer Ulna stylectomy Wrist Radial deviation Volar subluxation of the ulnar styloid Elbow Rheumatoid nodules Feel ↑ temperature of swollen joints = active synovitis Joint tenderness Median nerve sensation Move Fixed flexion on prayer position ↓ ROM Special Finkelstein’s Tinel’s and Phalen’s Function Precision: unbutton shirt, pick up coin from table Power: squeeze fingers Writing Walking aids, splints, wheelchair Completion Hx Examine for other features of RA Presentation Symmetrical deforming polyarthropathy Signs of active synovitis Signs of cause Rheumatoid nodules Psoriatic plaques Differential Psoriatic arthritis Jacoud’s arthropathy © Alasdair Scott, 2012 Nodules Tenosynovitis: de Quervains and atlanto-axial subluxation Immune: vasculitis, amyloidosis Cardiac: pericarditis ± effusion Carpal tunnel Pulmonary: fibrosis, effusions Ophthalmic: episcleritis, scleritis, Sjogren’s Raynaud’s Felty’s: RA + ↓PMN + splenomegaly Ix Bloods FBC: ↓Hb, ↓PMN ↑ESR and ↑CRP Immune: RF, anti-CCP, ANA, HLA-DR3/4 X-Ray Soft tissue swelling Periarticular osteopenia Loss of joint space Periarticular erosions Deformity Mx MDT GP, physio, OT, rheumatologist, orthopod Conservative Physio OT: aids and splints Medical Analgesia Steroids: IM, PO or intra-articular DMARDS Biologicals Other: CV risk, prevention of PUD and osteoporosis Surgical Carpal tunnel decompression Tendon repairs and transfers Ulna stylectomy Arthroplasty Anatomy of Rheumatoid Hands Boutonierre’s: rupture of central slip of extensor expansion → PIPJ prolapse through “button-hole” created by the two lateral slips. Swan: rupture of lateral slips → PIPJ hyper-extension 162 OA Hands Examination Viva Look Hx Heberden’s nodes: swelling of DIPJs Bouchard’s nodes: swelling of PIPJs Squaring of the thumb CMC Move ↓ ROM of passive and active motion Function Unbutton shirt Pick up coin from table Writing Completion Hx Examine other joints for OA Hips, lumbar spine, knees Differential RA hands Tophi Symptoms Pain Stiffness Affect on life Other joint disease Treatments so far OA of the Hands Typically affects Thumb CMC PIPJs DIPJs Bouchard’s Nodes are strongly assoc. c̄ polyarticular OA Mx of OA Hands Non-Surgical Physiotherapy Analgesia Surgical Joint arthrodesis © Alasdair Scott, 2012 163 Ulnar Nerve Palsy Radial Nerve Palsy Examination Examination Look Look Partial claw hand: little and ring fingers Wasting Hypothenar eminence Dorsal interossei Feel Loss of sensation in ulnar distribution Move Weak abduction and adduction of fingers Weak flexion of DIPJ in little and ring fingers Special Froment’s Weak adductor pollicis → flexion of thumb IPJ Compensation by FPL Elbow flex test Full elbow flexion for 1min → paraesthesia in little and ring fingers Completion Examine neck: brachial plexus injury Examine PNS of affected limb Viva Causes of Ulnar Nerve Palsy Anatomical Compression Cubital tunnel syn.: elbow Guyon’s canal syn.: wrist Trauma Supracondylar #s of humerus Elbow dislocation Wrist drop: holds hands out in front, palms down Feel Loss of sensation over the first dorsal interosseous May be sensory loss over dorsal forearm Move Low Loss of MCP extension Preserved PIPJ extension: lumbricals High: + wrist weakness Very high: + triceps weakness Completion Examine neck: brachial plexus injury Examine PNS of affected limb Viva Causes Very High → triceps paralysis + wrist drop + finger drop Just below brachial plexus Compression: crutches High → wrist drop + finger drop Occur at spiral groove Mid-shaft humerus #, Saturday night palsy Low → finger drop Occur at elbow Only involve posterior interosseous nerve sensation preserved Local wounds, # or dislocation Ulnar Paradox Proximal lesions → paralysis of ulnar half of FDP → ↓ marked clawing of hand Mx Non-surgical Avoid repetitive flexion-extension of elbow Avoid prolonged elbow flexion Night splinting of elbow in extension Surgical Ulnar nerve decompression Medial epicondylectomy © Alasdair Scott, 2012 164 Mallet Finger Trigger Finger Examination Examination Look Look Flexion deformity of distal phalanx of one or more fingers Move Terminal phalanx cannot be actively extended Can be passively extended Viva Aetiology Damage to extensor tendon of terminal phalanx. e.g. avulsion # due to hyperflexion injury when catching a cricket ball Mx X-ray: look for avulsion @ base of distal phalanx Splint c̄ distal phalanx in extension for 6wks to allow tendon reattachment. If avulsed bone is large may fix it c̄ a Kirschner wire Flexion of middle or ring finger Feel Palpate over palm proximally to digit for nodule. ~ @ level of transverse palmar crease Move Test active movement of finger Snap on passive forced extension Viva Pathology Tendon nodule which catches on proximal side of tendon sheath → triggering on forced extension. Often FDS tendon Causes Idiopathic Trauma Activities requiring repetitive forceful flexion e.g. use of heavy shears 2O to RA Mx Steroid injection: often recurs Tendon release by sheath incision © Alasdair Scott, 2012 165 Back Examination Set-Up Expose pt. to waist Begin c̄ pt. standing Look Assess gait Spinal curvature Paraspinal and trapezius muscle bulk Wall-tragus test if neck hyperflexion Feel Paraspinal muscle bulk and tenderness Spine palpation: masses, steps Spine percussion: tenderness Move Cervical spine movement Lateral flexion: normally ~30O Forward flexion: Schober’s Test Mark 5cm below and 10cm above levels of PSIS (sacral dimples, ~S2) Maximum flexion should lengthen line by ≥5cm Lie pt. Supine Assess back rotation c̄ arms folded across chest Measure leg lengths: apparent length discrepancy in scoliosis Sacroileitis Tests Lateral compression Stretch: adduction of hip, c̄ hip and knee flexed Straight Leg Raise Demonstrates lumbosacral nerve root irritation Record angle @ pain onset Lesague’s Sign ↑ pain c̄ foot dorsiflexion Quick Neurological Assessment of Lower Limb Power L4: foot inversion and dorsiflexion L5: great toe dorsiflexion S1: foot eversion and plantar flexion Reflexes S1: Ankle Sensation L5: great toe and medial dorsum S1: little toe and lateral sole Completion Complete neurological examination of lower limb Especially perineal sensation Consider a PR: exclude cauda equina compression © Alasdair Scott, 2012 166 Lumbar Disc Herniation Examination Viva Look Hx Gait: half-flexed, painful back Loss of normal lumbar lordosis Posture: sciatic list Attempt to ↓ nerve root compression by leaning to one side to open up the neural foramen Feel Erector spinae spasm or tenderness Move Pre-existing lumbar spondylosis Rupture of annulus fibrosis c̄ herniation of nucleus pulposus into spinal canal Special Tests Positive straight leg raise Neurological Risk Factors Distal weakness and sensory loss Root L5 S1 Sensory Inner foot dorsum Outer foot sole Completion Occupation Pain: site, radiation, associated injury, worse / better Neurology: weakness, numbness and paraesthesia Sphincter disturbance Hx or features of malignancy Effect on lifestyle Previous Rx: analgesia, physio, surgery Pathophysiology ↓ ROM: limited by pain Disc L4/5 L5/S1 Motor Hallux exten Foot eversion + plantarflex Reflex Ankle Complete neurological examination of lower limb Especially perineal sensation Consider a PR: exclude cauda equina compression Physiological ↑ age Poor posture Poor aerobic fitness Occupational Heavy manual labour Frequent bending, lifting, twisting Repetitive or static work postures Psychosocial Depression Non-Surgical Mx Conservative Max 2d bed rest Education: keep active, how to lift / stoop Physiotherapy: “back school” Psychosocial issues re. chronic pain and disability Warmth Medical Analgesia: paracetamol ± NSAIDs ± codeine Muscle relaxant: low-dose diazepam (short-term) Facet joint injections Surgical Mx Indications Progressive neurological deficit Severe incapacitating pain Failure of non-surgical options Procedures Percutaneous microdiscectomy Endoscopic discectomy Hemilaminotomy + discectomy © Alasdair Scott, 2012 167 Practical Surgery Contents Minimal Access Surgery ........................................................................................................................................................ 169 Enhanced Recovery After Surgery ........................................................................................................................................ 169 Surgical Complications .......................................................................................................................................................... 170 Laparoscopic Cholecystectomy ............................................................................................................................................. 171 Inguinal Hernia Repair: Hernioplasty ..................................................................................................................................... 171 Appendicectomy .................................................................................................................................................................... 172 Nissen Fundoplication ........................................................................................................................................................... 172 Gastrectomy........................................................................................................................................................................... 173 Ivor-Lewis Oesophagectomy ................................................................................................................................................. 173 Whipple’s: Pancreaticoduodenectomy................................................................................................................................... 173 Abdominal Aortic Aneurysm .................................................................................................................................................. 174 Carotid Endarterectomy ......................................................................................................................................................... 174 Bypass Grafting ..................................................................................................................................................................... 175 Transurethral Resection of the Prostate ................................................................................................................................ 175 Surgical Procedures Summary .............................................................................................................................................. 176 © Alasdair Scott, 2012 168 Minimal Access Surgery Enhanced Recovery After Surgery Advantages ERAS Smaller Incisions ↓ post-op pain ↓ risk of wound infection Faster post-op recovery ↓ hospital stay Better cosmesis May allow better visualisation and access Can visualise and operate on pelvic organs in lap appendicectomy. Dx and fix contralateral hernia in lap hernia repair. Commonly employed in colorectal and orthopaedic surgery Aims Optimise pre-op preparation for surgery Avoid iatrogenic problems (e.g. ileus) Minimise adverse physiological / immunological responses to surgery ↑ cortisol and ↓ insulin (absolute or relative) Hypercoagulability Immunosuppression ↑ speed of recovery and return to function Recognise abnormal recovery and allow early intervention Disadvantages Different anatomy ↓ tactile feedback (can’t feel colon tumours) 2D view of 3D structures Technically challenging and old skills may be lost Complications (e.g. haemorrhage) may be harder to Mx Expensive May take longer Common Procedures Lap cholecystectomy Lap appendicectomy Lap hernia repair Lap colectomy (~25%) Lap fundoplication Relative Contraindications Pneumoperitoneum may not be tolerated by pts. c̄ severe cardiorespiratory insufficiency. ↓ venous return, ↓ diaphragm movement Bleeding disorders Shocked patients Multiple adhesions © Alasdair Scott, 2012 Pre-op: optimisation Aggressive physiological optimisation Hydration BP (↑ / ↓) Anaemia DM Co-morbidities Smoking cessation: ≥4wks before surgery Admission on day of surgery, avoidance of prolonged fast Carb loading prior to surgery: e.g. carb drinks Fully informed pt., encouraged to participate in recovery Intra-op: ↓ physical stress Short-acting anaesthetic agents Epidural use Minimally invasive techniques Avoid drains and NGTs where possible Post-op: early return to function + mobilisation Aggressive Rx of pain and nausea Early mobilisation and physiotherapy Early resumption of oral intake (inc. carb drinks) Early discontinuation of IV fluids Remove drains and urinary catheters ASAP 169 Surgical Complications Surgical Complications Wound Infection 5-7d post-op Organisms: S. aureus and Coliforms Immediate (<24h) Intubation → oropharyngeal trauma Surgical trauma to local structures Primary or reactive haemorrhage Early (1d-1mo) Secondary haemorrhage VTE Urinary retention Atelectasis and pneumonia Wound infection and dehiscence Antibiotic association colitis (AAC) Late (>1mo) Scarring Neuropathy Failure or recurrence Colonic Surgery Early Late Ileus AAC Anastomotic leak Enterocutaneous fistulae Abdominal or pelvic abscess Adhesions → obstruction Incisional hernia Haemorrhage Classification Primary: continuous bleeding starting during surgery Reactive Bleeding at the end of surgery or early post-op 2O to ↑ CO and BP Secondary Bleeding >24h post-op Usually due to infection Operative Classification Clean: incise uninfected skin w/o opening viscus Clean/Cont: intra-op breach of viscus (not colon) Contaminated: breach of viscus + spillage or opening of colon Dirty: site already contaminated – faeces, pus, trauma Risk Factors Pre-operative ↑ Age Comorbidities: e.g. DM Pre-existing infection: e.g. appendix perforation Pt. colonisation: e.g. nasal MRSA Operative Op classification and wound infection risk Duration Technical: pre-op Abx, asepsis Post-operative Contamination of wound from staff Mx Wound Dehiscence Presentation Occurs ~10d post-op Preceded by serosanguinous discharge from wound Risk Factors Pre-Operative Factors ↑ age Smoking Obesity, malnutrition, cachexia Comorbs: e.g. BM, uraemia, chronic cough, Ca Drugs: steroids, chemo, radio Operative Factors Length and orientation of incision Closure technique: follow Jenkin’s Rule Suture material Post-operative Factors ↑ IAP: e.g. prolonged ileus → distension Infection Haematoma / seroma formation Mx © Alasdair Scott, 2012 Regular wound dressing Abx Abscess drainage Replace abdo contents and cover c̄ sterile soaked gauze IV Abx: cef+met Opioid analgesia Call senior and arrange theatre Repair in theatre Wash bowel Debride wound edges Close c̄ deep non-absorbable sutures (e.g. nylon) May require VAC dressing or grafting 170 Laparoscopic Cholecystectomy Principals 1. Establish Pneumoperitoneum Dissect down to and open the peritoneum @ umbilicus Insert lap port and establish pneumoperitoneum Insert 3 further ports under direct vision Epigastrium R costal margin R flank 2. Identify and Clip CA and CD Retract gallbladder upwards and identify Calot’s triangle Sup: inferior edge of liver Med: CHD Inf: cystic duct Contains: cystic artery, Calot’s/Lund’s node ± aberrant RHA Key to ID cystic duct and cystic artery and differentiate from CBD and RHA – “critical view of safety” Clip CD and CA. May use operative cholangiogram to confirm absence of stones in CBD. 3. Dissect and Remove GB Gallbladder dissected off liver and removed via umbilical port. Complications Conversion to open procedure: 5% CBD injury: 0.3% Bile leak Retained stones Intra-abdominal haemorrhage May be controlled by compressing the hepatic artery in the free edge of the Foramen of Winslow Pringle’s Manoeuvre Jaundice After Cholecystectomy Post-hepatic Gallstone retention Biliary sepsis Thermal injury: blunt dissection preferred Ligation of common hepatic or common bile duct Pre-hepatic Haemolysis after transfusion Hepatic Halogenated anaesthetics Inguinal Hernia Repair: Hernioplasty 6% of all general surgical operations 15% of all general surgical outpt. consultations Open: Lichtenstein Repair Can be performed under LA or GA 1. Enter inguinal canal Skin incised along Langer lines from external ring ~5cm towards ASIS. Incise Camper’s (fatty), then Scarpa’s (membranous) Incise external oblique to enter inguinal canal. 2. Mobilise and retract spermatic cord 3. Identify and dissect hernial sac Dissect hernial sac off cord May incise carefully and check for viscera Invaginate sac into peritoneal cavity. 4. Cover defect and posterior wall c̄ tension-free mesh Laparoscopic Repair 2 Main Repair Techniques Totally ExtraPeritoneal (TEP) Use balloon to blunt dissect extraperitoneal space posterior to recti. Reduce hernial sac and cover defect c̄ mesh Trans-Abdominal Pre-Peritoneal (TAPP) Mesh placed through incision in peritoneum Advantages Allows ID and repair of contralateral hernia which may or may not have been diagnosed. Quicker recovery ↓ acute pain ↓ complications ↓ chronic pain Disadvantages Technically challenging Longer operation More expensive Complications Early Late Urinary retention Haematoma / seroma formation: 10% Infection: 1% Intra-abdominal injury (lap) Recurrence (<2%) Ischaemic orchitis: 0.5% 2O thrombosis of pampiniform plexus Chronic groin pain / paraesthesia: 5% Post-op Day cases unless co-morbidities Discharge c̄ mild analgesics and mild laxatives Return to work @ 1-2wks © Alasdair Scott, 2012 171 Appendicectomy Nissen Fundoplication Open Aim 1. Access the peritoneum Transverse (Lanz) incision centred on McBurney’s point Incise Camper’s and then Scarpa’s fascia Muscle splitting incisions through abdominal muscles Incise transversalis fascia, pre-peritoneal fat and peritoneum. 2. Deliver caecum and find appendix ID caecum and follow taenia coli convergence at appendicular base. Prevent reflux, repair diaphragm Procedure Usually laparoscopic approach Wrap gastric fundus around lower oesophagus Close any diaphragmatic hiatus Complications Gas-bloat syn.: inability to belch / vomit Dysphagia if wrap too tight 3. Ligate mesoappendix and excise appendix Identify, clamp, divide and ligate Mesoappendix and appendicular artery. Clamp, divide and ligate appendix @ base. Cauterise appendix mucosa and bury stump in caecum c̄ purse-string (absorbable suture) 4. Peritoneal lavage and close abdomen Close abdomen in layers If appendix is macroscopically normal Remove anyway 20% have microscopic inflammation Avoids appendicitis in the future Search for other cause Meckel’s Gynae pathology Complications Abscess formation Right hemicolectomy (e.g. for carcinoid, caecal necrosis) Laparoscopic Advantages Visualise and operate on pelvic organs ↓ pain and quicker recovery ↓ wound infection Improved cosmesis Commonest Appendix Positions Retrocaecal: 65% Pelvic:30% Subcaecal:3% Anteileal: 2% © Alasdair Scott, 2012 172 Gastrectomy Ivor-Lewis Oesophagectomy Two-stage surgical procedure for removing tumours of the distal two 3rds of the oesophagus. Antrectomy Bilroth I: simple anastomosis Billroath II / polya: duodenal stump oversewn + gastrojejunostomy Procedure 1st: abdominal roof-top incision Assess for sub-diaphragmatic spread Mobilisation of the stomach to form a gastric conduit Resect para-oesophageal and cardiac LN 2nd: right thoracotomy Mobilisation and resection of the oesophagus End-to-end anastomosis of gastric conduit to remaining oesophagus Whipple’s: Pancreaticoduodenectomy Total Gastrectomy Subtotal Gastrectomy Performed for Ca of the head of the pancreas Removal of: Gastric antrum Gallbladder Head of the pancreas Proximal duodenum Regional lymph nodes Complications Physical Ca: ↑ risk of gastric Ca Reflux or bilious vomiting (improves c̄ time) Abdominal fullness Stricture Stump leakage Metabolic Dumping syndrome Abdo distension, flushing, n/v, fainting, sweating Early: osmotic hypovolaemia Late: reactive hypoglycaemia Blind loop syndrome → malabsorption, diarrhoea Overgrowth of bacteria in duodenal stump Vitamin deficiency ↓ parietal cells → B12 deficiency Bypassing proximal SB → Fe + folate deficiency Osteoporosis Wt. loss: malabsorption of ↓ calories intake © Alasdair Scott, 2012 173 Abdominal Aortic Aneurysm Carotid Endarterectomy Open Repair Indications Exposure of aorta through midline laparotomy Aortic and iliac clamping Replacement of aneurysmal segment c̄ dacron graft Complications Mortality Elective: 5% Emergency: 50% MI Renal failure Anastomotic bleeding Graft infection Spinal or mesenteric ischaemia Distal trash from thromboembolisation Aortoenteric fistula Endovascular Repair: EVAR Can be carried out under regional anaesthesia or GA Involves interventional radiology and vascular surgeons Endograft inserted through femoral artery over a guide-wire into the aneurysmal segment. Proximal and distal stents are expanded → fixation Symptomatic (ECST, NASCET) ≥70% (5% stroke risk per yr) ≥50% if low risk (<3%, typically <75yrs) Perform w/i 2wks of presentation Asymptomatic (ACAS, ACST) ≥60% benefit if low risk Principals Usually performed under LA LA allows direct monitoring of neurological status Under GA, transcranial US can monitor MCA flow EEG may also be used under GA Internal, external and common carotid arteries are clamped. May use temporary shunt to ensure cerebral perfusion Lumen of internal carotid opened and plaque is removed. Complications 7% risk of stroke or death w/i 30d Haemorrhage → haematoma MI Hypoglossal nerve damage: rare Tongue deviates towards affected side Fasciculations Complications MI Spinal or mesenteric ischaemia Renal failure Graft migration or stenosis Endoleaks: leak into aneurysm sac 1: perigraft leakage at proximal/distal attachment 2: retrograde flow from collaterals – lumbar, IMA 3: leakage between graft components 4: leakage through graft fabric Advantages ↓ perioperative mortality (0.5-2% vs. 5%) ↓ stress in high risk pts. ↓ hospital stay Improved cosmesis Disadvantages No data on long-term outcomes Not all aneurysms amenable E.g. need adequate infra-renal neck (≥15mm) ↑ in late procedure-related complications Life-long monitoring c̄ CT for endoleaks No ↓ all-cause mortality at 5yrs due to fatal endograft failures (EVAR 1 and DREAM). No ↓ all-cause mortality vs. medical therapy for pts. ineligible for open repair (EVAR 2) More expensive © Alasdair Scott, 2012 174 Bypass Grafting Transurethral Resection of the Prostate Indications Indications V. short claudication distance Symptoms greatly affecting pt’s. QoL Development of rest pain Practicalities Need good proximal supply and distal run-off More distal grafts have ↑ rates of thrombosis Saphenous vein graft preferred below inguinal lig Either reversed or valves destroyed in situ Must tie off tributaries first Prosthetic grafts may be employed Above IL: Dacron Below IL: PTFE Procedures Aorta / double iliac occlusion Aorto-bifem Axillo-fem (less stressful to pt.) Single iliac Aorto-fem Fem-fem crossover Axillo-fem SFA / PF Fem-pop Fem-distal (distal to popliteal, i.e. tibial A.) Complications Haematoma Distal embolism Thrombosis © Alasdair Scott, 2012 Surgical Rx of choice for BPH when medical Rx has failed. Principals Performed under spinal anaesthetic Cystoscopic inspection Locate external urethral sphincter and use as distal resection landmark Electrosurgical resection of prostatic tissue under direct vision Send chippings for histology Insert 3-way catheter post-op to irrigate bladder Complications Immediate TUR syndrome Absorption of large quantity of fluids → ↓Na Haemorrhage Early Haemorrhage Infection Clot retention: requires bladder irrigation Late Retrograde ejaculation: common ED: ~10% Incontinence: ≤10% Urethral stricture: LUTS following TURP Recurrence 175 Surgical Procedures Summary Upper GI Name Dohlman’s Procedure Nissen Fundoplication Heller’s cardiomyotomy Ramstedt’s pyloromyotomy Ivor-Lewis Whipple’s Pathology Pharyngeal pouch GORD Achalasia Congenital pyloric stenosis Oesophageal Ca Pancreatic Ca Procedure Minimally invasive endoscopic stapling Wrap fundus around distal oesophagus Longitudinal incision through muscularis propria @ the LOS Longitudinal incision through muscularis propria @ the pylorus Two-stage oesophagectomy Pancreaticoduodenectomy Pros and Cons Can → dysphagia Can → GORD Lower GI Name Mayo Repair Pathology Umbilical Hernia Lockwood Approach Femoral Hernia McEvedy Approach Femoral Hernia TEP TAPP Inguinal Hernia Inguinal Hernia Lat. Sphincterotomy Anal fissure Delorme’s Procedure Rectal prolapse Procedure Double-breast the linea alba ± sublay mesh. Low incision over hernia c̄ herniotomy and herniorrhaphy. High approach in inguinal region Herniotomy and herniorrhaphy Totally ExtraPeritoneal lap hernia repair Trans-Abdominal Pre-Peritoneal lap hernia repair Division of internal anal sphincter @ 3 O’clock Perineal approach c̄ mucosal excision Pros and Cons Used electively Used in emergency situation Allows inspection and resection of non-viable bowel Used when medical Mx fails SE: minor faecal incontinence Vascular Name Trendelenberg Op Cockett’s Op Trahere Transplantation Pathology Varicosities Varicosities Chronic venous insufficiency Procedure SFJ ligation Perforator ligation Transplant of axillary vein c̄ valve into deep venous leg veins Venous valvuloplasty Bypass venous obstruction c̄ contralateral GSV Pros and Cons Name Palomo Operation Pathology Varicocele Pros and Cons Lord’s Repair Jaboulay’s Repair Dartos Pouch Procedure Hydrocele Hydrocele Undescended testis Procedure High retroperitoneal approach for ligation of testicular veins Transverse incision at the level of the ASIS centred on the mid-inguinal point. Plication of the tunica vaginalis Eversion of the tunica vaginalis Mobilisation of testis and placement in a s/c pouch via a hole in the dartos muscle. Kistner Operation Palma Operation Urology Dartos prevents retraction Head and Neck Name Sistrunk’s Operation © Alasdair Scott, 2012 Pathology Thyroglossal cyst Procedure Excision of cyst and thyroglossal duct Pros and Cons 176 Surgical Radiology Contents Achalasia ............................................................................................................................................................................... 178 Oesophageal Cancer ............................................................................................................................................................. 178 Pharyngeal Pouch: Zenker’s Diverticulum ............................................................................................................................. 179 Sliding Hiatus Hernia ............................................................................................................................................................. 179 Small Bowel Obstruction ........................................................................................................................................................ 180 Large Bowel Obstruction ....................................................................................................................................................... 181 Volvulus ................................................................................................................................................................................. 182 Other AXRs ............................................................................................................................................................................ 182 Perforated Viscus................................................................................................................................................................... 183 Tension Pneumothorax .......................................................................................................................................................... 183 Diverticulosis .......................................................................................................................................................................... 184 Colorectal Cancer .................................................................................................................................................................. 184 Ulcerative Colitis .................................................................................................................................................................... 185 Crohn’s Disease..................................................................................................................................................................... 185 Gallstones .............................................................................................................................................................................. 186 Nephrolithiasis ....................................................................................................................................................................... 188 Subdural or Extradural Haematoma ...................................................................................................................................... 189 Digital Subtraction Angiogram ............................................................................................................................................... 190 Cervical Spine ........................................................................................................................................................................ 191 Hip Fracture ........................................................................................................................................................................... 191 Shoulder Dislocation .............................................................................................................................................................. 192 Femoral and Tibial Fractures ................................................................................................................................................. 192 Colles’ Fracture ...................................................................................................................................................................... 193 Other Fractures ...................................................................................................................................................................... 193 Fracture Complications .......................................................................................................................................................... 194 © Alasdair Scott, 2012 177 Achalasia Oesophageal Cancer Image Image Proximal dilatation of the oesophagus c̄ smooth distal tapering – the bird’s beak appearance. May be food particles visible. Significant negative: apple-core stricture suggestive of oesophageal SCC. Occurs in ~3% of pts c̄ achalasia Irregular, shouldered stricture of the oesophagus An “apple-core” lesion Where? Distal third: adenocarcinoma (commoner) Proximal third: SCC Key Facts Key Facts Epidemiology M>F = 5:1 ↑ in Transkei and China Definition Focal motility disorder of the oesophagus caused by degeneration of the myenteric plexus of Auerbach Pathophysiology 65% adenocarcinoma Lower 3rd GORD → Barrett’s → dysplasia → Ca 35% SCC Upper and middle 3rds Assoc. c̄ EtOH and smoking Commonest type worldwide Spread Local → LNs → blood Causes Usually idiopathic May be 2O to Chagas disease Presentation Ix Dysphagia to liquids then solids Retrosternal cramps Regurgitation: esp. @ night ± aspiration pneumonia Wt. loss Major Risk Factors Ba swallow CXR: wide mediastinum + double RH boarder Manometry: failure of relaxation + ↓peristalsis OGD: exclude oesophageal SCC GORD → Barrett’s EtOH and smoking Achalasia Plummer-Vinson: 20% risk of SCC Presentation Mx Progressive dysphagia Wt. loss Upper 3rd: hoarseness + bovine cough Med: CCB, nitrates Int: botox injection, endoscopic balloon dilatation Surg: Heller’s cardiomyotomy (open or lap) Ix Dx: OGD + biopsy Staging: CT, EUS, laparoscopy, mediastinoscopy Mx MDT Oesophagectomy: 25% have resectable tumours Ivor-Lewis 2 stage McKeown 3 stage 15% 5 year survival Palliation: 75% of pts. Analgesia Laser coagulation Stenting 5% 5 year survival © Alasdair Scott, 2012 178 Pharyngeal Pouch: Zenker’s Diverticulum Sliding Hiatus Hernia Image Dilated pouch (the hernia) below a smooth, short, symmetric, ring-like constriction (the GOJ). May be assoc. c̄ smooth area f concentric narrowing in the distal oesophagus: reflux-stricture. Significant negative: apple-core stricture Image Contrast filling of blind-ended pouch adjacent to and in continuity c̄ the oesophagus. Key Facts Pathophysiology Out-pouching between crico- and thyro-pharyngeal components of the inf. pharyngeal constrictor. Pulsion diverticulum Area of weakness = Killian’s dehiscence Key Facts Classification Sliding (80%) Gastro-oesophageal junction slides up into chest Often assoc. c̄ GORD Rolling (15%) Gastro-oesophageal junction remains in abdomen but a bulge of stomach rolls into chest alongside the oesophagus LOS remains intact so GORD uncommon Can → strangulation Mixed (5%) Presentation Dysphagia Swelling on left side of neck Regurgitation Halitosis Mx Excision Dohlman’s Procedure: endoscopic stapling Presentation Often asymptomatic Sliding hernias → GORD: dyspepsia Rolling hernias → strangulation Ix CXR: gas bubble and fluid level in chest Ba swallow: diagnostic OGD: assess for oesophagitis 24h pH + manometry Exclude dysmotility or achalasia Confirm reflux Rx Conservative: ↓wt., raise head of bed, stop smoking Medical: PPIs, H2RAs Surgical If intractable symptoms despite medical Rx. Should repair rolling hernia (even if asympto) as it may strangulate. © Alasdair Scott, 2012 179 Small Bowel Obstruction Image Dilated loops of bowel ≥3cm in width Centrally located Valvulae coniventes: lines go completely across Valvular flaps projecting into SB lumen Many loops Many fluid level State orientation of pt.: erect or supine No gas in LB Mx Resuscitate: Drip and Suck Admit NBM Aggressive rehydration c̄ 0.9% NS Significant 3rd space losses On-going requirements Electrolyte disturbances Catheterise: aim for 0.5ml/kg/hr NGT Decompress upper GIT Stops vomiting Prevents aspiration Analgesia: e.g. paracetamol + codeine phosphate Abx: if evidence of strangulation or perforation Differential Common Mechanical Adhesions: 60% Hernias Non-mechanical / Ileus Hx Other Intraluminal Impacted faeces FB Gallstone Mural Benign stricture Malignant stricture Congenital atresia Extra-mural Pancreatic pseudocyst Abscess Congenital bands Ileus Post-op Peritonitis Pancreatitis / local inflammation Poisons: e.g. TCAs Metabolic: ↓K, ↓Na, ↓Mg, uraemia Mesenteric ischaemia Vomiting Absolute constipation Colicky abdominal pain Abdominal distension Past Hx: surgery or hernias Examination Dehydration Features of strangulation or perforation Surgical scars and hernias Bowel sounds: mechanical vs. non-mechanical Ix Bloods FBC, CRP, amylase: inflammatory markers U+E: dehydration and electrolyte abnormalities VBG: ↑ lactate indicates strangulation G+S, clotting: anticipation of surgery Imaging AXR Erect CXR CT c̄ oral contrast: transition point Gastrograffin follow-thru: may be therapeutic if adhesional obstruction Mx Mechanical Regular clinical examination: signs of strangulation Consider need for parenteral nutrition ~80% resolve w/o surgery Laparotomy + adhesiolysis ± resection ± stoma Failure of conservative Mx: up to 72hrs Development of sepsis Peritonitis Evidence of strangulation Ileus Correct any underlying abnormalities Electrolytes Drugs Consider need for parenteral nutrition © Alasdair Scott, 2012 180 Large Bowel Obstruction Image Resuscitate: Drip and Suck Admit NBM Aggressive rehydration c̄ 0.9% NS Significant 3rd space losses On-going requirements Electrolyte disturbances Catheterise: aim for 0.5ml/kg/hr NGT Decompress upper GIT Stops vomiting Prevents aspiration Analgesia: e.g. paracetamol + codeine phosphate Abx: if evidence of strangulation or perforation Dilated loops of bowel ≥6cm in width Peripherally located Haustra: lines go partially across Sacculations caused by shorter taenia coli No gas in rectum Differential Common Mechanical Carcinoma: 60% Diverticular stricture: 20% Volvulus Other Intraluminal Impacted faeces FB Mural Benign stricture Malignant stricture Extra-mural Adhesions Hernia Abscess Haematoma Tumour: e.g. ovarian Ileus Pseudo-obstruction: Ogilvie’s syndrome Metabolic: ↓K, ↓Na, ↓Mg, uraemia Poisons: e.g. TCAs Mesenteric ischaemia Hx Symptoms Vomiting Absolute constipation Colicky abdominal pain Abdominal distension Cause Ca: change in bowel habit, ↓wt., PR bleed Diverticulitis Examination Dehydration Features of strangulation or perforation Masses: neoplastic or inflammatory Bowel sounds: mechanical vs. non-mechanical PR: rectal mass, impacted stool, blood Ix Bloods FBC, CRP, amylase: inflammatory markers U+E: dehydration and electrolyte abnormalities VBG: ↑ lactate indicates strangulation G+S, clotting: anticipation of surgery Imaging AXR CT c̄ oral contrast: transition point Gastrograffin enema: mechanical obstruction Mx Regular clinical examination: signs of strangulation Consider need for parenteral nutrition Non-surgical: endoscopic stenting May offer bridge to surgery (CREST Trial) Surgical Indications Closed loop obstruction Obstructing neoplasm Strangulation or perforation Failure of conservative Mx Hartmann’s procedure O Colectomy + 1 anastomosis Palliative bypass procedure © Alasdair Scott, 2012 181 Volvulus Other AXRs Image Chronic Pancreatitis Inverted U / Coffee bean sign Emerging from LIF: sigmoid (commoner) Emerging from RIF: caecal Key Facts Pathophysiology Long mesentery c̄ short base predisposes to torsion Vascular supply may be compromised → strangulation ↑ risk in psychogeriatric pts.: disease and Rx Typically a long Hx of constipation Presentation Often elderly pts. c̄ comorbidities Grossly distended, tympanic abdomen Mx Resuscitate: drip and suck Sigmoid Detorse c̄ flatus tube May need sigmoid colectomy Often recurs Caecal ~ 10% can be detorsed by colonoscopy often needs surgery Caecostomy O Right hemi c̄ 1 ileocolic anastomosis Gastric Volvulus Film Gastric dilatation Double bubble on erect films Horizontal speckled calcification @ ~ L1/L2 Differential: Pancreatic Ca Causes Alcohol Genetic: CF, HH Immune: lymphoplasmacytic sclerosing pancreatitis ↑ TGs Structural: obstruction by stone AAA Fusiform calcification in the midline Gallstones Cluster of circular calcifications @ ~L1 Rigler’s Triad SBO Pneumobilia Gallstone in RIF Rigler’s Sign Air on both sides of bowel wall Looks like double contrast Is falciform ligament also visible? Foreign Bodies Unstable: theatre Stable Endoscopic removal Watch and wait c̄ serial radiographs Batteries Oesophagus: remove Stomach: safe Large sharp objects May consider laparotomy Presentation Vomiting Pain Failed attempts to pass NGT Risk Factors Rolling hiatus hernia Gastric / oesophageal surgery Mx Endoscopic manipulation Emergency laparotomy © Alasdair Scott, 2012 182 Perforated Viscus Tension Pneumothorax Image Image Differential Extras Air under the diaphragm Rigler’s Sign Spontaneous: perforated DU Iatrogenic: laparotomy / laparoscopy Traumatic Miscellaneous: e.g. via female genital tract Key Facts Presentation Sudden onset, severe epigastric pain Vomiting Peritonitic abdomen Ix Absent peripheral lung markings Mediastinal shift away from abnormality Surgical emphysema Evidence of cause: e.g. rib #s Key Facts Mx: surgical emergency Decompressive thoracostomy 14G Venflon in 2nd ICS mid-clavicular line Continue resuscitation of pt. Insert a chest drain Clinical Signs Bloods FBC, CRP, amylase U+E G+S, clotting Imaging Erect CXR Upright for 15min first 70% show free air AXR: Rigler’s sign Mx: surgical emergency Resuscitation Admit NBM Aggressive fluid resuscitation 3rd space + on-going losses Titrate to UO NGT Abx: local guidelines (probably cef+met) Analgesia: morphine + cyclizine Preparation for Surgery Anaesthetist and book theatre Bloods: clotting + G&S Consent DVT prophylaxis ECG: if >55yrs or cardiovascular disease Respiratory distress ↑JVP, ↓BP Tracheal shift + displaced apex Hyper-resonance to percussion ↓ breath sounds ↓ vocal resonance Pathophysiology One way flap valve allows air to be drawn into pleural cavity on each inspiration without escape. Mediastinal shift compresses the great vessels, preventing filling of the heart → shock. Types of Pneumothorax Traumatic Open: may be sucking Closed Either may be under tension Spontaneous 1O: no underlying lung disease 2O: underlying lung disease Laparotomy DU: abdominal washout + omental patch repair GU: excise ulcer and repair defect Send specimen for histology to exclude Ca Conservative May consider if pt. isn’t peritonitic Careful monitoring, fluids, Abx Omentum may seal perforation spontaneously f/up Test and Treat for H. pylori: +ve in ~90% of perfed DUs © Alasdair Scott, 2012 183 Diverticulosis Colorectal Cancer Image Image Typically double-contrast enema Out-pouchings of mucosa Especially around sigmoid colon Extras Typically double-contrast enema Apple-core stricture c̄ shouldered margins Extras Evidence of perforation Evidence of obstruction: proximal flow of contrast Evidence of UC: lead-piping Evidence of stricturing Evidence of perforation: contrast leak Key Facts Key Facts Definition Risk Factors Out-pouching of tubular structure False: composed of mucosa only Diet: ↓ fibre + ↑ refined carbohydrate IBD: CRC in 15% c̄ pancolitis for 20yrs Familial: FAP (5), HNPCC (2), Peutz-Jeghers (19) Smoking Genetics No relative: 1/50 CRC risk One 1st degree: 1/10 NSAIDs / Aspirin (300mg/d): protective Pathophysiology 30% of Westerner’s by 60yrs F>M High intraluminal pressures → herniation of mucosa through muscularis propria @ points of weakness where perforating arteries enter. May be part of Saint’s Triad Diverticular disease Hiatus hernia Cholelithiasis Presentation (left-sided) Diverticular Disease Altered bowel habit Left-sided colic: relieved by defaecation Rx High-fibre diet, mebeverine may help Elective laparoscopic sigmoid colectomy Diverticulitis Left-sided abdominal pain and localised tenderness Pyrexia Ix CT has very high sensitivity and specificity Water soluble contrast studies may occasionally be helpful Hinchey Grading 1: small confined pericolic abscess (<5% mortality) 2: large abscesses extending into pelvis (<5%) 3: purulent peritonitis (~15%) 4: faecal peritonitis (~45%) Mx Resus: admit, NBM, fluids, Abx 1-2: surgery rarely needed 3: on table washout may suffice 4: Hartmann’s Other Complications Perforation Abscess Fistula Bleeding Stricture Prognosis 10-30% recurrence w/i a decade © Alasdair Scott, 2012 Change in bowel habit PR mass: 60% Obstruction: 25% Tenesmus PR bleed Systemic: wt. loss, malaise Dukes Staging Sir Cuthbert Dukes: St. Mary’s Pathologist Spread Confined to bowel wall Through bowel wall but no LNs Regional LNs Distant mets A B C D % 5ys 90 60 30 <10 Mx MDT Colonoscopy: allows biopsy to grade tumour Stage c̄ CT or MRI 60% amenable to radical therapy Excision depends on lymphatic drainage, mobility of bowel and blood supply @ excision margins. Laparoscopic resection under ERAS pathway is current standard of care. Adjuvant 5-FU for Dukes C: ↓ mortality by 25% Screening FOB 60-75yrs Home testing every 2yrs + colonoscopy if +ve ↓ risk of dying from CRC by 25% Flexi Sig Introduced in 2011/12 55-60yrs One of flexi sig ↓ mortality by ~45% 184 Ulcerative Colitis Crohn’s Disease Image Image Small bowel follow through or enteroclysis Replaced by CT enterography or CT enteroclysis Rose-thorn ulcers String sign of Kantor: narrow terminal ileum Cobble-stoning: ulceration of mural oedema Skip lesions Usually a double contrast enema Lead-piping: no haustra Mucosal thickening ± thumb-printing Pseudopolyps Extras Transition point to normal bowel Apple-core lesion Extras Evidence of perforation: contrast leak Key Facts Key Facts Pathology Pathology Mucosal inflammation Contiguous disease: rectum proximally Broad, shallow ulceration Pseudopolyps: islands of regenerating mucosa No strictures, fistulae, granulation Transmural, non-caseating granulomatous inflammation Non-contiguous: anywhere from mouth to anus Predilection for terminal ileum Deep, serpiginous ulceration + mucosal oedema → cobblestone mucosa Prominent strictures, fistulae Severe Attack: Truelove and Witts Criteria Hx: motions >6/d + large PR bleed o/e: temp >37.8 + HR >90 Ix: ESR >30 + Hb <10.5 Severity Clinical: ↑ temp, ↑HR, wt. loss Ix: ↑EXR/CRP, ↑WCC, ↓albumin, ↓Hb Acute Mx Resus: NBM, IV hydration, analgesia Hydrocortisone: IV + PR LMWH Monitoring: examination, stool chart, bloods Improving: PO steroids + mesalazine Deteriorating: ciclosporin, infliximab, surgery Acute Mx Complications Toxic megacolon Haemorrhage Ca: CRC in 15% c̄ pancolitis @ 20yrs Resus: NBM, IV hydration, analgesia Hydrocortisone: IV ± PR Abx: metronidazole LMWH Dietician review: elemental diet or parenteral nutrition Monitoring: examination, stool chart, bloods Improving: PO steroids Deteriorating: methotrexate, infliximab, surgery Complications Fistulae Strictures Abscesses Malabsorption Extra-Intestinal Features of IBD © Alasdair Scott, 2012 Skin Clubbing Erythema nodosum PG (esp. UC) Mouth Aphthous ulcers Eyes Anterior uveitis Episcleritis Joints Large joint arthritis Sacroileitis Hepatic Other AA amyloidosis Oxalate renal stones Fatty liver Chronic hepatitis → cirrhosis Gallstones (esp. CD) PSC + cholangiocarcinoma (esp. UC) 185 Gallstones Imaging Key Facts US Epidemiology Stones → acoustic shadow Dilated ducts: >6mm ± stones in ducts Inflamed GB: wall oedema ~8% of the population >40yrs Incidence ↑ over last 20yrs: western diet Slightly ↑ incidence in females 90% of gallstones remain asymptomatic Formation ERCP Endoscopic retrograde cholangiopancreatography Side-viewing endoscope Cannulation of sphincter of Oddi Injection of radiocontrast allows biliary tree imaging Film Filling defects: stones Duct dilatation Stricturing PSC Lap chole Cholangiocarcinoma Extrinsic compression: Ca pancreas Therapeutics Sphincterotomy + trawling of ducts allows stone removal. Strictures may be stented or dilated Complications Pancreatitis: 5% Bleeding: esp. in jaundiced pts. Check clotting first Bowel perforation Contrast allergy MRCP MR cholangiopancreatography Non-invasive and no contrast necessary No therapeutic capabilities: Dx only Film Filling defects Strictures Duct dilatation General Composition Phospholipids: lecithin Bile pigments (broken down Hb) Cholesterol Aetiology Lithogenic bile: Admirand’s Triangle Biliary sepsis GB hypomotility → stasis Pregnancy, OCP TPN, fasting Cholesterol Stones: 20% Large Often solitary Formation ↑ according to Admirand’s Trangle ↓ bile salts ↓ lecithin ↑ cholesterol Risk factors Female OCP, pregnancy ↑ age High fat diet and obesity Racial: e.g. American Indian tribes Loss of terminal ileum (↓ bile salts) Pigment Stones: 5% Small, black, gritty, fragile Calcium bilirubinate Associated c̄ haemolysis Mixed Stones: 75% Often multiple Cholesterol is the major component PTC Percutaneous transhepatic cholangiography Injection of contrast into biliary tree via needle directly through skin. Not commonly performed now Contrast fills from proximal to distal (cf. ERCP) Look for presence of needle cannulating a duct. No endoscope visible Complications In the Gallbladder 1. Biliary Colic 2. Acute cholecystitis ± empyema 3. Chronic cholecytsitis 4. Mucocele 5. Carcinoma 6. Mirizzi’s syndrome In the CBD 1. Obstructive jaundice 2. Pancreatitis 3. Cholangitis In the Gut 1. Gallstone ileus © Alasdair Scott, 2012 186 Pancreatitis Acute Cholecystitis Common Causes Pathogenesis Presentation Presentation Gallstones: 45% Alcohol: 25% Idiopathic: 20% (?microstones) Stone or sludge impaction in Hartmann’s pouch → chemical and / or bacterial inflammation 5% are acalculous: sepsis, burns, DM Vomiting + severe epigastric pain Fever Hypovolaemia Bruising: Cullen’s and Grey-Turner’s Modified Glasgow Criteria Valid for EtOH and Gallstones Assess severity and predict mortality Ranson’s criteria are only applicable to EtOH and can only be fully applied after 48hrs. PANCREAS PaO2 Age Neutrophils Ca2+ Renal function Enzymes Albumin Sugar Ix <8kPa >55yrs >15 x109/L <2mM U>16mM LDH>600iu/L AST>200 iu/L <32g/L >10mM 1 = mild 2 = mod 3 = severe Urine: ↑ cBR, ↓ urobilinogen Bloods FBC, amylase, CRP (>150 in 1st 48hrs = severe) U+E: dehydration LFTs: cholestatic picture Ca, glucose, ABG: scoring Imaging CXR: exclude perfed DU, ARDS AXR: sentinel loop, pancreatic calcification US: gallstones + dilated ducts Contrast CT: Balthazar severity score Ix Continuous severe RUQ pain → right scapula Fever Murphy’s sign Boas’ sign: hyperaesthesia below R scapula Urine: ↑ cBR, ↓ urobilinogen Bloods FBC, amylase, CRP U+E: dehydration LFTs Clotting and G+S: anticipation of surgery Imaging Erect CXR: exclude perfed DU US: stones, inflammation, dilated ducts Mx Conservative NBM IV hydration and correction of electrolyte abnormalities Analgesia: e.g. paracetamol + pethidine Abx: cefuroxime + metronidazole 80-90% settle over 24-48hrs Surgical If <72hrs: may perform “hot gallbladder” Otherwise, elective lap chole @ 6-12wks Empyema High fever RUQ mass Percutaneous drainage: cholecystostomy Mx Principals Mx @ appropriate level: e.g. ITU if severe Constant reassessment is key: esp. fluid balance Conservative Aggressive fluid resuscitation + UO monitoring NBM + NGT Analgesia: pethidine via PCA Penems if suspicion of sepsis Interventional ERCP may be needed if 2O to gallstones Complications Early Late Hypovolaemia → shock and renal failure SIRS → ARDS and DIC Metabolic: ↑ glucose, ↓Ca Pseudocyst: 20% Pancreatic necrosis, infection and abscess Bleeding: e.g. from splenic artery Thrombosis: e.g. portal vein Fistula formation: e.g. pancreatico-cutaneous © Alasdair Scott, 2012 187 Nephrolithiasis Image Key Facts IVU Stone Types Failure of distal flow of contrast Standing column of contrast Clubbing of calyces Delayed, dense nephrogram Visible stone Ask to see KUB control film 90% of stones radio-opaque Technical 600x radiation dose of KUB Urograffin contrast injection Immediate film + 30min + 1h Contraindications to IVU Contrast allergy Pregnancy Severe asthma Metformin Significant renal impairment Alternative Non-contrast CT-KUB is gold standard 99% of stones visible Calcium oxalate: 75% Triple phosphate (struvite): 15% Ca Mg NH4 – phosphate May form staghorn calculi Assoc. c̄ proteus infection Urate: 5% (radiolucent) Double if confirmed gout Cystine: 1% (faint) Assoc. c̄ Fanconi Syn. Pathophysiology ↑ concentration of urinary solute ↓ urine volume Urinary stasis Common Anatomical Sites Pelviureteric junction Pelvic brim Vesicoureteric junction Ureteric Colic Severe loin pain radiating to the groin Assoc. c̄ n/v Pt. cannot lie still Mx Initial Analgesia IV or oral fluids Conservative: <5mm in lower 1/3 of ureter 90-95% pass spontaneously Sieve urine for OPD stone analysis Medical Expulsive Therapy: 5-10mm Nifedipine or tamsulosin Most pass w/i 48h Active Stone Removal Indications Stones >10mm Persistent obstruction Renal insufficiency Infection Procedures Extracorporeal shockwave lithotripsy Ureterorenoscopy + Dormier basket removal Percutaneous nephrolithotomy Lap or open stone removal Febrile c̄ Renal Obstruction Surgical emergency Percutaneous nephrostomy or ureteric stent IV Abx: e.g. cefuroxime 1.5g IV TDS © Alasdair Scott, 2012 188 Subdural or Extradural Haematoma Imaging Key Facts Axial Non-Contrast CT Head Brain Injury Extradural: lentiform opacification Subdural: sickle-shaped opacification Extras Midline shift Associated cerebral contusion: coup + contra-coup Associated sub-arachnoid haemorrhage Colour of haematoma White (hyperdense): acute Pale grey (hypodense): chronic (~3wks) Ask to bony window to accurately assess for skull # Primary Occurs @ time of injury as result of direct injury Diffuse Concussion: temporary ↓ in brain function Diffuse axonal injury Focal Contusion Intracranial haemorrhage Secondary Occur after primary injury Causes ↑ ICP Infection Hypoxia or hypercapnoea Hypotension Monroe-Kelly Doctrine Cranium is rigid box total volume of intracranial contents must remain constant if ICP is not to change. ↑ in volume of one constituent → compensatory ↓ in another: CSF Blood (esp. venous) These mechanisms can compensate for a volume change of ~100ml before ICP ↑. As autoregulation fails, ICP ↑ rapidly → herniation. Cushing Reflex: imminent herniation Hypertension Bradycardia Irregular breathing NICE Indications for Head CT Basal or depressed skull # Amnesia >30min retrograde Neurology: seizures, focal weakness, blown pupil GCS: <13 @ scene or <15 2h after trauma Sickness: persistent vomiting Any amnesia or LOC + 1 of Dangerous mechanism >65yrs Coagulopathy © Alasdair Scott, 2012 189 Digital Subtraction Angiogram Image Vessel stenosis Distal filling by collaterals Extras Aortoiliac occlusion → Leriche Syndrome Key Facts Definitions Acute: ischaemia <14d Incomplete: limb not threatened (e.g. thrombosis) Complete: limb threatened (e.g. embolism) Loss of limb unless intervention w/i 6hrs Irreversible: requires amputation Chronic: stable ischaemia >14d Critical: ankle pressure <50mmHg + either Persistent pain requiring opioid analgesia Ulceration or gangrene Presentation Acute Pain Pulseless Pallor Cold Paraesthesia Paralysis Chronic Asymptomatic Intermittent claudication Rest pain Ulceration and gangrene Leriche Syndrome ED + buttock claudication Risk Factors Modifiable Smoking BP DM control Hyperlipidaemia ↓ exercise Non-modifiable FH and PMH Male ↑ age Genetic Mx of Chronic Ischaemia Non-surgical CV risk factor control Antiplatelet agents Analgesia Graded exercise programs: walk through pain Interventional Angioplasty ± stenting Surgical Reconstruction Endarterectomy Amputation Mx of Acute Ischaemia Resus: NBM, hydration, analgesia UH IVI: prevent thrombus extension Angiography: only if incomplete occlusion Surgery Embolectomy c̄ Fogarty catheter Emergency reconstruction Complications Reperfusion injury → compartment syndrome Chronic pain syndromes Treat cause e.g. warfarinise Mx CV risk © Alasdair Scott, 2012 190 Cervical Spine Hip Fracture Imaging Imaging Views Lateral AP Open-mouth “Peg” view Adequacy Must see C7-T1 junction May need swimmer’s view c̄ abducted arm Alignment: 4 lines Ant. vertebral bodies Ant. vertebral canal Post. vertebral canal Tips of spinous processes Bones: shapes of bodies, laminae, processes Cartilage: IV discs should be equal height Soft tissue Width of soft tissue shadow anterior to upper vertebrae should be 50% of vertebral width. Clearing the C-Spine Clinical Clearance Indication: NEXUS Criteria Neurological deficit Spinal tenderness in the midline Altered consciousness Intoxication Distracting injury Method Examine for bruising or deformity Palpate for deformity and tenderness Ensure pain-free active movement Radiological Clearance Indications Pt. doesn’t meet criteria for clinical clearance Modalities Radiograph initially Clear if normal radiograph and clinical exam CT C-spine if abnormal radiograph or clinical exam Need orthogonal views: AP + Lat Follow Shenton’s lines Intra- or extra-capsular? Displaced or non-displaced: Garden classification Extras Osteopaenic? Osteoarthritic? Check for pelvic ring #s Key Facts Epidemiology 50% >80yrs F>M=3:1 30% mortality @ 1yr 50% never regain pre-morbid functioning Classification Intracapsular: subcapital, transcervical, basicervical Extracapsular: Intertrochanteric, subtrochanteric Garden Classification of Intracapsular Fractures 1. Incomplete #, undisplaced 2. Complete #, undisplaced 3. Complete #, partially displaced 4. Complete #, completely displaced Initial Mx: Optimise the Pt. Resus: hydration, neurovascular status, analgesia Anaesthetist and book theatre Bloods: FBC, U+E, clotting, x-match 2u CXR DVT prophylaxis ECG Films: orthogonal x-rays Get consent Surgical Mx Intracapsular 1,2: ORIF c̄ cancellous screws 3,4: <55: ORIF c̄ screws. f/up in OPD and do arthroplasty if AVN develops (in 30%) >55: THR or hemiarthroplasty Extracapsular ORIF c̄ DHS Discharge Involve OT and physios Discharge when mobilisation and social circumstances permit. Specific Complications © Alasdair Scott, 2012 AVN of fem head in displaced #s: 30% Non / mal-union: 10-30% Infection Osteoarthritis 191 Shoulder Dislocation Femoral and Tibial Fractures Imaging Imaging Typically anterior dislocation c̄ humeral head located antero-inferiorly. Bankhart lesion: damage to glenoid labrum Hill-Sachs lesion: cortical depression in posterolateral part of humeral head. Request AP and lateral Key Facts Mx Key Facts Presentation Severe pain Loss of shoulder contour Humeral head palpable in infraclavicular fossa Mx Resuscitate Analgesia Assess NV deficit: 5% axillary nerve injury Reduction under sedation: e.g. propofol Hippocratic: Longitudinal traction c̄ arm in 30O abduction and counter traction @ the axilla Kocher’s: external rotation of adducted arm, anterior movement, internal rotation Sling for 3-4wks Physio Complications Recurrent dislocation 90% of pts. <20yrs with traumatic dislocation Axillary N. injury Resuscitate and Mx life-threatening injuries first Assess neurovascular status of limb Urgent angiography if distal pulses compromised X-match: femoral – 4u, tibial – 2u Open Analgesia: morphine and metoclopramide Assess: NV status + photo Asepsis: wash, cover c̄ sterile soaked gauze Alignment: reduce and splint Abx: augmentin 1.2g IV Anti-tetanus Debridement and fixation in theatre ORIF Ex-Fix Gustillo Classification of Open #s 1. Wound <1cm in length 2. Wound ≥1cm c̄ minimal soft tissue damage 3. Extensive soft tissue damage Clostridium perfringes Most dangerous complication of open # Wound infections and gas gangrene ± shock and renal failure Rx: debride, benpen + clindamycin Other Complications Femoral Hypovolaemic shock NV: SFA and sciatic nerve Tibial NV injury Compartment syndrome Fat embolism © Alasdair Scott, 2012 192 Colles’ Fracture Other Fractures Imaging Monteggia Extra-articular # of the distal radius Dorsal displacement of distal fragment Dorsal angulation of distal fragment ± avulsion of ulna styloid Extras ↓ radial height (normal = 11mm) ↓ radial inclination (normal = 22O) Loss of volar tilt (normal = 11O volar) Key Facts Eponym Described clinically by Irish surgeon Abraham Colles in 1814. Dinner fork deformity Mx Resuscitate + Mx life-threating injuries Assess NV injury: median N. and radial A. Reduction + fixation Haematoma block or Bier’s block (c̄ prilocaine) Dorsal backslab c̄ 3-point pressure Fracture clinic appointment for ortho assessment # of proximal 3rd of ulna shaft Anterior dislocation of radial head at capitellum May → palsy of deep branch of radial nerve → weak finger extension but no sensory loss Galleazzi # of radial shaft between middle and distal 3rds Dislocation of distal radio-ulna joint Supracondylar Humeral # Classification Extension: distal fragment displaces posteriorly Flexion: distal fragment displaces anteriorly Complications NV: brachial artery and median nerve mainly Compartment syndrome Malunion: gunstock deformity (cubitus varus) Proximal Humerus # Surgical neck: axillary nerve damage Shaft: radial nerve → wrist drop Mx: collar and cuff or ORIF Specific Complications Median N. injury Frozen shoulder / adhesive capsulitis Tendon rupture: esp. EPL Carpal tunnel syn. Mal- /non-union Distal Fibula Weber Classification Relation of # to joint line A: below joint line B: at joint line C: above joint line B and C represent possible injury to the syndesmotic ligs between tib and fib → instability Growth Plate Damage to physis → abnormal bone growth SH2 is commonest (~75%) SH5: biggest risk to physis Salter-Harris Classification 1. Straight across 2. Above 3. Lower 4. Through 5. CRUSH Pelvic Fracture Young and Burgess Classification Lateral compression: ipsilateral pubic rami #s AP compression: open book # Vertical shear: inherently unstable © Alasdair Scott, 2012 Complications Haemorrhage Urethral injury Bladder injury 193 Fracture Complications General Complications Nerve Injury Tissue Damage Haemorrhage and shock Infection Muscle damage → rhabdomyolysis Seddon Classification Neuropraxia: temporary interruption of conduction Axonotmesis Disruption of axon c̄ preservation of connective tissue framework Recovery possible Neurotmesis Disruption of entire nerve fibre Recovery incomplete Anaesthesia Anaphylaxis Damage to teeth Aspiration Prolonged Bed Rest Chest infection, UTI Pressure sores and muscle wasting VTE ↓ BMD Compartment Syndrome Oedema → ↑ compartment pressure → vascular compromise Compartment pressure > capillary pressure → ischaemia Pain > clinical findings and pain on passive stretch Mx Specific Complications Immediate Neurovascular damage Visceral damage Early Compartment syn. Infection (worse if assoc. c̄ metalwork) Fat embolism → ARDS Late Problems c̄ union AVN Growth disturbance Post-traumatic osteoarthritis Complex regional pain syndromes Myositis ossificans Elevate limb and remove bandages and cast Fasciotomy Problems c̄ Union Delayed union: union takes longer than expected Non-union: # fails to unite Mal-union: # unites in imperfect position Causes: 5Is Infection Ischaemia Interfragmentary movement Interposition of soft tissue Intercurrent illness Mx Optimise biology: infection, bone graft, blood supply, bone graft, BMPs Optimise mechanics: ORIF Myositis Ossificans Heterotopic ossification of muscle @ sites of haematoma formation → restricted, painful movement Commonly affects the elbow and quadriceps Rx: excise Complex Regional Pain Syndrome 1: Sudek’s Atrophy Presentation Wks – months after injury Affects neighbouring area Pain, hyperalgesia and allodynia Vasomotor: hot and sweaty or cold and cyanosed Skin: swollen or atrophic NM: weakness, contractures Mx © Alasdair Scott, 2012 Usually self-limiting May need amitriptyline / gabapentin 194 Instruments Contents Vascular Access .................................................................................................................................................................... 196 Phlebotomy ............................................................................................................................................................................ 198 Airways and Breathing ........................................................................................................................................................... 199 Perioperative Mx .................................................................................................................................................................... 202 General Surgery..................................................................................................................................................................... 205 Urology................................................................................................................................................................................... 209 Trauma and Orthopaedics ..................................................................................................................................................... 212 Miscellaneous ........................................................................................................................................................................ 216 © Alasdair Scott, 2012 195 Vascular Access Peripheral Venous Cannula Triple Lumen Central Venous Catheter Indication Indication Peripheral administration of fluid and drugs Features Colour Yellow Blue Pink Green Grey Brown Gauge 24 22 20 18 16 14 Flow Rate (ml/min) 15 30 60 90 230 270 Poiseuille’s Law Flow rate Proportional to the r4 Inversely proportional to length Method Inserted into a peripheral vein under ANTT Complications Haematoma Malplacement Blockage Superficial thrombophlebitis CVP measurement: fluid balance Drugs requiring central administration Amiodarone, mannitol TPN Method Inserted using the Seldinger technique under US Trendelenberg position Sterile Under LA Use US guidance Order a CXR afterwards Internal jugular, Subclavian and Femoral veins Complications Immediate Pneumothorax Arrhythmia Malposition into an artery Early Haematoma formation Infection Catheter occlusion Late Thrombosis Sympathetic chain → Horner’s syndrome Phrenic nerve damage → hiccough, weak diaphragm Other Procedures Using Seldinger Technique Angiography Chest drain insertion Percutaneous endoscopic gastrostomy © Alasdair Scott, 2012 196 PICC Line Tessio Catheter Indication Haemodialysis Indication Long-term central access: abx, chemo, TPN Method Inserted into a peripheral vein: e.g. cephalic Advanced until the tip sits in the SVC. X-ray to confirm position Complications Early Arrhythmias Bleeding Late Thrombosis Catheter occlusion Infection Hickman Line Features Tunnelled subcutaneously Cuffs promote tissue reaction → better seal Arterial limb takes blood to machine Venous limb takes dialysed blood back to pt. Method Sterile insertion under x-ray guidance Arterial limb sits more proximally to ↓ recirculation Complications Early Pneumothorax Arrhythmias Bleeding Late Thrombosis Catheter occlusion Infection Port-a-Cath Indication Long-term central access: abx, chemo, TPN, dialysis Method Indications Complications Features Tunnelled under skin to enter IJV and lay in SVC Early Pneumothorax Arrhythmias Bleeding Long-term chemotherapy or antibiotics Centrally placed catheter Subcutaneous port made of self-sealing silicone rubber Accessed c̄ 90O Huber point needle V. low infection risk as skin breech is very small Late Thrombosis Catheter occlusion Infection © Alasdair Scott, 2012 197 Phlebotomy Blood Culture Bottles Indications Investigate a patient c̄ pyrexia Features Red: anaerobic culture medium Blue: aerobic culture medium Method Take blood using ANTT Replace needle with a clean one Wipe top of bottles c̄ alcohol Fill anaerobic (red) bottle first Fill in pt. details and send to path lab Some hospitals have specific teams that take cultures Post-Op Pyrexia Early: 0-5d post-op Blood transfusion Physiological: SIRS from trauma: 0-1d Pulmonary atelectasis:24-48hr Infection: UTI, superficial thrombophlebitis Drug reaction Delayed: >5d post-op Collections Pneumonia DVT / PE Wound infection: 5-7d Anastomotic leak: 7d Examination of Post-Op Febrile Pt. Observation chart, notes and drug chart Wound DRE Legs Chest Lines Urine Stool Vacutainers Purple Contains: EDTA Prevents clotting and keep cells alive Use FBC, CD4, cross-match i.e. things you want to do c̄ cells Yellow Contains: Activated gel Promotes clotting Gel facilitates easy separation of serum and red cells. Use Serum chemistries, enzymes Red Contains: Nothing, glass tube “a clotted sample” Use Immunology, Abs, Ig, protein electrophoresis Green Contains: Li heparin Anticoagulant Use Plasma chemistries, enzymes Blue Contains: Citrate Chelates Ca2+, preventing clotting Use Coagulation determinates Special Ca2+ is added back to sample to allow clotting. Therefore need precise blood volume Grey Contains Fluoride: inhibit glycolysis Oxalate: anticoagulate Use Glucose Black Contains: citrate Anticoagulant Use ESR Special Need precise blood volume Order of Draw © Alasdair Scott, 2012 Blood cultures Blue Yellow Green Purple Grey 198 Airways and Breathing Endotracheal Tube McKintosh Laryngoscope Indications To acquire a definitive airway in elective or emergency situations Abdominal surgery Head injury Features Cuffed Adults Secured tube and prevents aspiration Uncuffed Children Avoid damaging the larynx Size Female: 7.5 Male: 8.5 Double lumen Allow single lung ventilation Used in thoracic surgery Radio-opaque line: blue Method Pt. is pre-oxygenated, sedated and a muscle relaxant may be used. Inserted into the trachea under direct vision using a laryngoscope. Crichoid pressure may ↓ risk of aspiration Bougi may be used for difficult airways Smaller Anterior curvature Can feel tracheal rings with tip Position confirmed and tube secured c̄ tape Indications ET intubation Features Handle + light source Removable blade: come in different sizes McKintosh = Curved (preferred) Miller = Straight Method Pt. is appropriately sedated and muscle relaxed. Inserted with left hand, tongue displaced laterally Tip inserted into valecular Light source allows direct vision of vocal cords for intubation. Complications Oropharyngeal trauma Laryngeal trauma C-spine injury: e.g. c̄ atlanto-axial instability Check Position Inspect for symmetrical chest movements Listen over epigastrium for gurgling Listen over each lung for air entry Use CO2 monitor CXR: just above carina Complications Early Oropharyngeal trauma Laryngeal trauma C-spine injury: e.g. c̄ atlanto-axial instability Oesophageal intubation Bronchial intubation Delayed Sore throat Tracheal stenosis Difficult wean Definitive Airway Airway which is protected from aspiration Types Orotracheal or nasotracheal airway Surgical: tracheostomy, cricothyroidotomy © Alasdair Scott, 2012 199 Temporary Tracheostomy Tube Laryngeal Mask Airway Indications Non-definitive airway used in short day-case surgery where a pt. doesn’t require intubation. May also be used in an emergency situation if not able to insert ET tube. Features Inflatable cuff to create a seal over the larynx Method Indications Definitive surgical airway Acutely: maxillofacial injuries Electively: ITU pts. c̄ prolonged ventilation Features Obturator Cuff to prevent aspiration Flange to secure to pts. neck Insufflation port. Method Transverse incision ~1cm above sternal notch Dissect through fascial planes and retract ant. jugular veins and strap muscles Divide thyroid isthmus Stoma fashioned between 2nd and 4th tracheal rings by removing anterior portion of tracheal ring Insert trachy c̄ obturator Secure with tapes. Advantages over ET Tube Easier to wean pts. No need for sedation ↓ discomfort Easier to maintain oral and bronchial hygiene ↓ risk of glottis trauma ↓ dead space reduces work of breathing Complications Immediate Haemorrhage Surgical trauma: oesophagus, recurrent laryngeal N. Pneumothorax Early Tracheal erosion Tube displacement Tube obstruction Surgical emphysema Aspiration pneumonia Late Tracheomalacia Tracheo-oesophageal fistula Tracheal stenosis © Alasdair Scott, 2012 Cuff is deflated and lubricated c̄ aquagel Inserted c̄ open end pointing down towards the tongue Sits in orifice over the larynx Cuff inflated and tube secured with tape Complications Dislodgement Leak Pressure necrosis in airway Aspiration: non-definitive airway Oropharyngeal / Guedel Airway Indications Airway adjunct used in pts. with impaired level of consciousness to maintain a patent airway e.g. during extubation Method Sized from incisors to angle of mandible Insert upside down and rotated once in the oral cavity Complications Oropharyngeal trauma Gagging → vomiting Nasopharyngeal Airway Indications Airway adjunct used in pts. with impaired level of consciousness to maintain a patent airway Method Sized according to diameter of pts. little finger Inserted into the nasopharynx using a rotational action Safety pin and flared end prevents the tube becoming irretrievable. Complications Bleeding: trauma to nasal mucosa Intracranial placement Contraindications Absolutely contraindicated in pts. c̄ facial injuries or evidence of basal skull # Racoon eyes Battles’ Sign: mastoid bruising Haemotympanum SCF rhinorroea or otorrhoea 200 Oxygenation Ventilation Nasal Prongs Types 1-4L/min = 24-40% O2 Simple Face Mask Variable O2 concentration depending on O2 flow rate Non-rebreathing Hudson Mask Reservoir bag allows delivery of high concentrations of O2. 60-90% at 10-15L Venturi Mask Uses the Bernoulli Principle ↑ speed of flow → ↓ pressure Altering O2 flow speed can entrain a known concentration of air for dilution Provide precise O2 concentration at high flow rates Yellow: 5% White: 8% Blue: 24% Red: 40% Green: 60% Non-invasive: tight-fitting mask Invasive: ET or tracheostomy Indications Respiratory failure refractive to less invasive Rx At risk airway Elective post-op ventilation Physiological control (e.g. hyperventilation in ↑ICP) Complications Cardiovascular compromise Pneumothorax Fluid retention VILI VAP Complications of artificial airway: e.g. tracheal stenosis CPAP Tight fitting mask connected to reservoir or high O2 flow allowing FiO2 ~1. Positive pressure is applied continuously to the patient’s airway. Benefits Recruitment of collapsed lung units ↓ shunt → ↑PaO2 ↑ lung volume → improved compliance → ↓ work of breathing. CPAP usually has little effect on PaCO2 © Alasdair Scott, 2012 201 Perioperative Mx Ryles Nasogastric Tube Feeding NG Tube Indications Indications Draining the stomach Part of the “drip and suck” for the management of bowel obstruction. Pts. c̄ persistent vomiting: e.g. pancreatitis Features Wide-bore Stiffer Radio-opaque line Metal tip Metal Tip Acts as lead point to facilitate advancement of NGT Weights the NGT down in the stomach Radio-opaque on x-ray aiding visualisation Method Size tube by measuring from tip of pts nose to epigastrium, going around the ear. Gain consent and explain the procedure Lubricate the tip c̄ aquagel Insert the tube and ask pt. swallow c̄ water when they feel it at the back of their throat. Secure c̄ tape when position confirmed Check Location Aspirate gastric contents and check pH (<4) Insufflate air and auscultate for bubbling Best not to do this in bowel obstruction CXR: tip below diaphragm Complications Nasal trauma Malposition: airway, cranium (CI in cribriform plate #s) Blockage Contraindication Any suspicion of basal skull # Provide enteral nutrition Catabolic: sepsis, burns, major surgery Coma/ITU Malnutrition Long-term feeding Dysphagia: stricture, stroke Features Fine-bore Soft silicone Contains radio-opaque guide-wire to stiffen the tube and aid insertion. Method Size tube by measuring from tip of pts nose to epigastrium, going around the ear. Gain consent and explain the procedure Lubricate the tip c̄ aquagel Insert the tube and ask pt. swallow c̄ water when they feel it at the back of their throat. Remove guidewire and secure c̄ tape when position confirmed Check Location Aspirate gastric contents and check pH (<4) Insufflate air and auscultate for bubbling CXR: tip below diaphragm Complications NGT Nasal trauma Malposition: airway, cranium (CI in basal skull #s) Blockage Feeding Refeeding syndrome Electrolyte imbalance Feed intolerance → diarrhoea Contraindication Any suspicion of basal skull # © Alasdair Scott, 2012 202 Types of Nutritional Supplementation Refeeding Syndrome Life-threatening metabolic complication of refeeding via any route after a prolonged period of starvation. Enteral Nutrition Oral supplements Polymeric: e.g. osmolite, jevity Intact proteins, starches and long-chain FAs Disease Specific e.g. ↓ branched chain AAs in hepatic encephalopathy Elemental Simple AAs and oligo/monosaccharides Require minimal digestion and used if abnormal GIT: e.g. in Crohn’s Parenteral Nutrition May be “Total” or used to supplement enteral feeding Combined c̄ H2O to deliver total daily requirements Indications Unable to swallow: e.g. oesophageal Ca Prolonged obstruction or ileus (>7d) High output fistula Short bowel syndrome Severe Crohn’s Severe malnutrition Delivery Delivered centrally as high osmolality is toxic to veins Short-term: CV catheter Long-term: Hickman or PICC line Pathophysiology ↓ carbs → catabolic state c̄ ↓insulin, fat and protein catabolism and depletion of intracellular PO4 Refeeding → ↑ insulin in response to carbs and ↑ cellular PO4 uptake. → hypophosphataemia Rhabdomyolysis Respiratory insufficiency Arrhythmias Shock Seizures Chemistry ↓K, ↓Mg, ↓PO4 At-Risk Patients Malignancy Anorexia nervosa Alcoholism GI surgery Starvation Rx Identify at-risk pts in advance and liaise c̄ dietician Parenteral and oral PO4 supplementation Rx complications Monitoring Standard Wt., fluid balance and urine glucose daily Zn, Mg weekly Initially Blood glucose, FBC and U+E 3x /wk LFTs 3x /wk Once stable Blood glucose, FBC and U+E daily LFTs weekly Contents 2000Kcal: 50% fat, 50% carb 10-14g nitrogen Vitamins, minerals and trace elements Complications Line-related Pneumothorax / haemothorax Cardiac arrhythmia Line sepsis Central venous thrombosis → PE or SVCO Feed-related Villous atrophy of GIT Electrolyte disturbances: e.g. refeeding syndrome Hyperglycaemia and reactive hypoglycaemia Vitamin and mineral deficiencies © Alasdair Scott, 2012 203 Thromboembolic Deterrent Stockings Major Fluids Indications Crystalloid Used to prevent VTE All patients undergoing surgery All immobile pts Method Available in different sizes Width: widest point of calf Length: heel to buttock fold Often used in conjunction c̄ LMWH NS 0.9% NaCl = 9g/L 154mM NaCl Use: normal daily fluid requirements + replace losses 5% Dextrose 50g dextrose /L Use: normal daily fluid requirements Complications Dextrose-Saline 4% dextrose = 40g/L 0.18% NaCl = 31mM NaCl Use: normal daily fluid requirements Preventing DVT Hartmann’s / Ringer’s Lactate Na: 131mM Cl: 111mM K: 5mM Ca: 2.2mM Lactate / HCO3: 29mM Use: Trauma, Burns (Parkland) Contraindicated in pts c̄ arterial disease DVT is commonest complication of THR Peak incidence @ 5-10d post-op Pre-Op Pre-op VTE risk assessment TED stockings Aggressive optimisation: esp. hydration Stop OCP 4wks pre-op Intra-Op Minimise length of surgery Use minimal access surgery where possible Intermittent pneumatic compression boots Post-Op LMWH Early mobilisation Good analgesia Physio Adequate hydration Daily Requirements 3L dex-saline c̄ 20mM K+ in each bag 1L NS + 2L dex c̄ 20mM K+ in each bag Each bag over 8h = 125ml/h Problems Give 1L NS → ~210ml remaining IV Give 1L D5W → ~70ml remaining IV Acidosis or electrolyte disturbances Fluid overload Colloid Synthetic Gelofusin Volplex Haemaccel Voluven Natural Albumin Blood Use Fluid challenge Hypovolaemic shock Burns: Muir and Barclay Problems Anaphylaxis Volume overload © Alasdair Scott, 2012 204 General Surgery Surgical Drains Indications Prophylactic Prevent fluid accumulation Therapeutic Drainage of established collections Drain a viscus: e.g. bladder Collect blood for autotransfusion Robinson Type: closed, passive Use: abdominal surgery Risk of infection Contamination: faeces or pus Types Open or Closed Open e.g. corrugated rubber or plastic sheets Fluid collects into dressing or stoma bag Closed e.g. chest drains, Robinson or Redivac Tube attached to a container Redivac Type: closed, active Use Breast surgery: prevent seroma or haematoma Thyroid surgery: risk of haematoma Active or Passive Active: driven by suction e.g. Redivac drain Passive: no suction, driven by pressure differential e.g. Robinson drain Removal Remove drain once drainage stopped or <25ml/d Perioperative bleeding and haematoma: 24-48hrs Intestinal anastomosis: >5d T-tube: 6-10d T-tube cholangiogram first to ensure distal patency of CBD Shortening: removal of drain by 2cm/d to allow tract to heal gradually. Bile Bag Type: closed, passive Use NGT T-tube Complications May ↑ risk of infection Damage may be caused by mechanical pressure or suction. May limit pt. mobility. Pemrose Drain Type: open, passive Use: abdominal surgery Tissue Drain Type: open, passive Use: large cavities © Alasdair Scott, 2012 205 Sutures Dever’s Retractor Suture Types Monofilament Advantages ↓ risk of infection ↓ friction in tissues Disadvantages Harder to handle: stiff and has more memory Knots may slip Less tensile strength Braided Advantages Easier to handle: less memory Knots slip less Greater tensile strength Disadvantage ↑ risk of infection ↑ friction in tissues Indications Surgical instrument used in open abdominal surgery to retract viscera and ↑ the field of view Method Curved end inserted into abdomen and placed carefully to retract the viscera. Can be bent to a suitable shape Complications Natural Damage to skin and internal structures Absorbable Catgut / Chromic Self-Retaining Retractor Non-absorbable Silk: braided suture that may be used to secure drains Synthetic Absorbable Name Monocryl Vicryl Material Poliglecaprone Polyglactin Construction Mono Braided PDS Polydioxanone Mono Use Subcuticular skin closure Subcutaneous closure Bowel anastomosis Closing abdominal wall Non-Absorbable Name Prolene Material Polypropelene Construction Mono Ethilon Metal Nylon Steel Mono Clips or mono Use Skin wounds Arterial anastomosis Skin wounds Skin wounds Sternotomy closure Suture Removal Indications Used to retract a surgical excision and retain the incision open. E.g. in hernia repair or and appendicectomy Complications Compression of nerves of vessels Needle Holders Further away from heart = longer time Face and neck: 3-5d Scalp: 5-7d Trunk: 10d Arms: 7d Legs 10-14d Pts. c̄ poor wound healing may need longer Needles Straight: hand-held, used for skin closure Curved: require needle-driver Diameter Fine: GI and vascular surgery Medium: general closure Heavy: hernia repair Tip Blunt: abdominal wall closure Shape J-shaped: abdominal wall closure © Alasdair Scott, 2012 Indications Forceps designed to hold the needle, allowing the surgeon to suture accurately. 206 Disposable Proctoscope Disposable Rigid Sigmoidoscope Indications Investigation and management of pts. c̄ perianal pathology: e.g. haemorrhoids, low rectal Ca Examination of the anal canal and lower rectum ± biopsy Therapeutic: banding, sclerotherapy Features Obturator to aid insertion Attachment for a light source Method Consent pt. and explain procedure. Examine perineum and perform DRE c̄ pt. in left-lateral position. Lubricate scope c̄ aquagel, attach light source Hold in left hand and insert into the rectum. Complications Haemorrhage Perforation Indications Allows endoscopic examination of the rectum and rectosigmoid junction c̄ possible biopsy. Can be used in the outpatient or inpatient setting Investigation of Rectal bleeding Colonic Neoplasia IBD Features Graduated plastic tube c̄ an obturator to aid insertion Method Shouldered / Gabriel Syringe For good views a suppository should be given prior to examination Consent pt. and explain procedure. Examine perineum and perform DRE c̄ pt. in left-lateral position. Ensure no obstruction to scope Lubricate scope c̄ aquagel and insert into anal canal Remove obturator Attach light source, bellows and eye piece and insufflate air Visualise mucosa as scope withdrawn Complications Indications Injection of haemorrhoids with 5% phenol in almond oil Sclerosant Method Consent and explain procedure to pt. Pt. placed in left lateral position and syringe used c̄ proctoscope to enable haemorrhoid visualisation 2ml of phenol is injected above dentate line: insensitive Complications Immediate Pain if injected below dentate line Damage to nearby structures Primary haemorrhage Perforation Mechanical: pushing against bowel wall Pneumatic: over-inflation Bleeding PR Bleeding Differential Commonest Perianal: haemorrhoids, fissure Diverticular disease Malignancy Other IBD Infection Upper GI bleed Angiodysplasia Late Prostatitis Impotence © Alasdair Scott, 2012 207 Laparoscopic Port Circular Bowel Stapler Indications Access the abdomen during laparoscopic surgery E.g. lap chole Features Trocar ± sharp blades CO2 insufflation port Instrument port with rubber flanges Method Small incision made in the abdominal wall Either trocar used to enter abdomen or surgical entry is made Laparoscope usually inserted @ the umbilicus Abdomen inflated c̄ CO2: cheap, soluble, inert gas Complications Visceral trauma on insertion Advantages of MAS Smaller Incisions ↓ post-op pain ↓ risk of wound infection Faster post-op recovery ↓ hospital stay Better cosmesis May allow better visualisation and access Can visualise and operate on pelvic organs in lap appendicectomy. Dx and fix contralateral hernia in lap hernia repair. Disadvantages of MAS Different anatomy ↓ tactile feedback (can’t feel colon tumours) 2D view of 3D structures Technically challenging and old skills may be lost Complications (e.g. haemorrhage) may be harder to Mx Expensive © Alasdair Scott, 2012 Indications Rectal anastomosis Gastrectomy Haemorrhoids Rectal prolapse Features Anvil sutured into proximal limb c̄ purse string suture Anvil fits into stapler and provides counterpoint for staple insertion. Complications Anastomotic leak Checking the Integrity of an Anastomosis Intra-operative Fill pelvic cavity with saline Insufflate rectum c̄ air and look for bubbles in the saline. Post-operative Water-soluble contrast enema 208 Urology General Catheterisation Indications Diagnostic Measure urine output Sterile urine sample Renal tract imaging Therapeutic Urinary retention Immobile patients Bladder irrigation Intermittent decompression of neuropathic bladder Foley Catheter Features One port for drainage and one to fill the distal balloon c̄ sterile water. Distal balloon sits in the bladder and prevents displacement of the catheter. Material Usually latex Silastic better for long-term placement ↓ blockage and ↓ infection Method Consent and explain the procedure to the patient. Use smallest diameter possible to achieve adequate drainage French = circumference of catheter in mm Male: 16-18F Female: 12-14F Clean perineal area Use ANTT and insert the catheter c̄ the aid of instilagel Ensure that urine is draining before inflating the balloon (10ml of water) Replace foreskin to prevent paraphimosis May give a STAT dose of Gentamicin IV to prevent transient bacteraemia. Mx of Non-draining catheter Bypassing catheter: consider condom catheter Blocked: flush c̄ 20ml sterile 0.9% NS or consider 3way Slipped into prostatic urethra: flushes but won’t drain Catheter has perforated the lower tract on insertion and is not in the bladder Renal or pre-renal failure TWOC After 24-72 hrs in AUR May be performed as a urology outpt. if retention likely. Tamsulosin ↓s risk of retention after TWOC Indications for Long-Term Catheterisation Chronic bladder outlet obstruction Neurogenic bladder c̄ chronic retention Complications of incontinence Refractory skin breakdown Palliative care Pt. preference Clean Intermittent Self-Catheterisation Alternative to indwelling catheter in CUR Also useful in pts. who fail to void after TURP Indications Chronic retention Neuropathic bladder MS DM neuropathy Spinal trauma Complications Early Creation of false tract Urethral rupture Paraphimosis Haematuria Delayed Infection Blockage Contraindications Urethral trauma Blood @ urethral meatus High-riding prostate Scrotal haematoma Pelvic fracture Other Catheter Types Coude catheter: angled tip may help in big prostates Condom catheter © Alasdair Scott, 2012 209 3-Way Irrigation Foley Catheter Acute Urinary Retention (AUR) Indication Clinical Features Irrigate bladder in pts @ risk of clot retention E.g. after TURP or in pts c̄ haematuria Suprapubic tenderness Palpable bladder Dull to percussion Can’t get beneath it Large prostate on PR Check anal tone and sacral sensation <1L drained on catheterisation Features 3 ports Balloon inflation Drainage (middle) Irrigation Suprapubic Catheter Ix Blood: FBC, U+E, PSA (prior to PR) Urine: dip, MC+S Imaging US: bladder volume, hydronephrosis Pelvic XR Mx Conservative Analgesia Privacy Walking Running water or hot bath Indications Urethral injuries Urethral obstruction BPH Ca prostate Method US guided insertion of catheter under LA Trocar inserted into catheter and unit advanced through skin. Complications Viscus perforation Haemorrhage Malignancy seeding Catheterise Use correct catheter: e.g. 3-way if clots STAT gent cover Hrly UO + replace: post-obstruction diuresis Tamsulosin: ↓ risk of recatheterisation after retention TWOC after 24-72h May d/c and f/up in OPD More likely to be successful if predisposing factor and lower residual volume (<1L) TURP Failed TWOC Impaired renal function Elective Advantages ↓ UTIs ↓ stricture formation TWOC w/o catheter removal Pt. preference: ↑ comfort Maintain sexual function Disadvantages More complex: need skills Serious complications can occur CI Known or suspected bladder carcinoma Undiagnosed haematuria Previous lower abdominal surgery → adhesion of small bowel to abdo wall © Alasdair Scott, 2012 210 JJ or Ureteric Stent Indication Relieve ureteric obstruction Stones Tumours May be inserted intra-op during renal Tx Method Retrograde: cystoscopic guidance Anterograde: percutaneous Complications Infection Blockage Displacement / migration © Alasdair Scott, 2012 211 Trauma and Orthopaedics Chest Drain Tube and Trocar Chest Drain Bottle Indications Indications Drainage of the pleural cavities PTX Traumatic Ventilated Following needle decompression of tension Persistent after aspiration Pleural effusion: malignant, pus, blood, lymph Post-op: thoracotomy, post-oesophagectomy Method Consent and explain procedure to pt. Commonly insert smaller drains c̄ Seldinger technique Morphine analgesia Clean and drape area ID safe triangle: 4th-6th ICS, just anterior to mid-axillary line, posterior to pectoralis major muscle. Infiltrate 1% lignocaine to rib below and pleura of ICS. Check that air or fluid can be aspirated. Make small 1cm incision just above rib below, blunt dissect c̄ Spencer-Wells down to pleura, sweep finger to clear adhesions and check location. Attach drain to bottle and advance it into pleural cavity, directing it postero-inferiorly. Close wound and ICD using modified mattress suture. Get patient to cough and take deep breaths, check for swinging and bubbling. CXR to check location. As for chest drain tube Method Fill bottle to prime level c̄ sterile water Connect to drain to bottle Underwater seal allows one-way flow out of pleural cavity May add suction → active drainage Complications Lifting the bottle above the pt can → retrograde flow into chest. Complications of chest tube insertion Complications Early Pain due to inadequate analgesia Haemorrhage due to NV bundle damage Organ perforation Incorrect location: e.g. abdomen Late Failure: bronchopleural fistula Long-thoracic N. damage → winged scapula Wound infection Blockage Removal Remove when no longer swinging or bubbling and CXR confirms resolution of PTX Using two people, remove in forced expiration and use mattress suture to close wound. CXR to check no new PTX. © Alasdair Scott, 2012 212 Fracture Plate Hemi-Arthroplasty Prosthesis: Austin Moore Indications Internal fixation of fractures This particular type can be used to fix tibial #s Method Requires open reduction Plate aligned with orientation of bone Screws used to fix plate to bone Complications Relate to #, procedure and the plate The Plate Infection Failure Malposition of the remodelled fracture Other Types of Fixation POP Continuous traction: collar and cuff External fixation Intramedullary nail K wires DHS Cannulated screws Indications Intracapsular # NOF: Garden 3/4 Features Fenestrated stem for osseous integration Non-cemented Shouldered Large head Method Placed in theatre under GA Posterior or anterolateral (commonest) approaches Head of femur resected femoral shaft reamed Stem is cemented (Thompson) or uncemented (Austin Moore) Head relocated and joint function and stability assessed before closure. Complications of the Prosthesis Complications involve the fracture, the procedure and the prosthesis. Early Cement reaction Deep infection Fracture Dislocation (3%): squatting and adduction Late Loosening: septic or aseptic Failure: stem # Revision: most replacements last 10-15yrs © Alasdair Scott, 2012 213 Total Arthroplasty Prosthesis Indications OA hip Features Femoral component with small head Polyethylene acetabular component Most are cemented Method Placed in theatre under GA Posterior or anterolateral (commonest) approaches Head of femur resected Acetabulum and femoral shaft are reamed Stems and cups are trialled to find most suitable Head relocated and joint function and stability assessed before closure. Complications of the Procedure and Prosthesis Immediate Nerve injury Fracture Cement reaction Early DVT: up to 50% w/o prophylaxis Deep infection Must remove metalwork before revision. Dislocation (3%): squatting and adduction Late Loosening: septic or aseptic Failure: stem #, wear Revision: most replacements last 10-15yrs © Alasdair Scott, 2012 Intramedullary Nail Indications Form of internal fixation used in the Mx of long-bone #s Femur, tibia, humerus Features Titanium or titanium alloy Screws insert proximally and distally provide rotational and longitudinal stability Curve fits contour of tibia Dynamisation Removal of one or more screws in order to allow collapse ↑ loading of fracture site → quicker union Method Inserted under GA Nail hammered into medulla of bone Screws lock nail in place Complications of the Prosthesis Fracture during nail insertion Infection Fat embolus Delayed or non-union Fat Embolism Syndrome Presentation: SOB, petechial rash, confusion Typically 24-72h between injury and onset Resp: dyspnoea ± chest pain Petechial rash: upper anterior trunk, arms, neck CNS: headache, confusion, agitation Renal: oliguria, haematuria Ix ABG: hypoxia, hypocapnoea FBC: ↓ plats, ↓Hb CT chest Mx Supportive: O2, volume resuscitation Steroids 214 Stiff Neck Collar Mannitol Indications Indications Stabilise the cervical spine in trauma pts. Used c̄ two sandbags and tape Features Comes flat packed and must be assembled Hole at front allows access to the trachea Method Sized by measuring the number of fingers from the clavicle to the angle of the mandible “Key dimension” then compared to the sizing peg on the hard collar. Osmotic diuretic Lower intracranial pressure ↓ IOP in hyphema Method Given centrally Complications May ↑ ICP in the long-term CI in severe cardiac failure and pulmonary oedema Complications Incorrect placement Neck not in neutral alignment Chin not flush c̄ end of chin piece Clearing the C-Spine Clinical Clearance Indication: NEXUS Criteria Neurological deficit Spinal tenderness in the midline Altered consciousness Intoxication Distracting injury Method Examine for bruising or deformity Palpate for deformity and tenderness Ensure pain-free active movement Radiological Clearance Indications Pt. doesn’t meet criteria for clinical clearance Modalities Radiograph initially Clear if normal radiograph and clinical exam CT C-spine if abnormal radiograph or clinical exam © Alasdair Scott, 2012 215 Miscellaneous Swan Ganz Catheter Tru-Cut Biopsy Needle Indications Indications Flow directed pulmonary artery catheter Measure the pulmonary capillary wedge pressure Indirect measure of LA filling pressure Measure cardiac output Used in cardiogenic or septic shock when accurate haemodynamic data is required Its use has not been shown to improve outcome Used to take histological specimens from lesions Part of triple assessment of breast lumps Liver Kidney Prostate: transrectally Method Consent and explain procedure to pt. Anaesthetise area c̄ LA Needle advanced under US guidance Spring handle is pressed, advancing the specimen tray into the target lesion Further pressure fires the surrounding sheath, obtaining a biopsy Method Used in the intensive care setting Inserted into a central vein. Fogarty Embolectomy Catheter Complications Bleeding Pain Cancer seeding Renal Biopsy Indications Indication Mx of acutely ischaemic limb 2O to embolus Method Vascular access gained to femoral artery @ groin. Catheter passed distal to embolus Balloon is inflated and catheter withdrawn. CI Unexplained ARF/CRF Acute nephritic syndrome Unexplained proteinuria / haematuria Systemic disease c̄ renal involvement (e.g. SLE) Suspected Tx rejection Abnormal clotting Single kidney (except Tx) Small kidneys from CRF (↑ bleeding risk + too late) Renal neoplasms Procedure Stop aspirin (1wk) and warfarin (2d) in advance Check FBC, clotting and G&S US-guided Tru-Cut needle biopsy Complications Macroscopic haematuria in 1% Transfusion needed in 0.1% © Alasdair Scott, 2012 216 Key Anatomy Contents Chest Wall ................................................................................................................................................................................. 218 Thoracic Cavity .......................................................................................................................................................................... 219 Inguinal Region.......................................................................................................................................................................... 220 Abdominal Wall and Surface Anatomy ...................................................................................................................................... 221 The Bowel.................................................................................................................................................................................. 222 Abdomen Neurovascular Supply ............................................................................................................................................... 223 Gastrointestinal Adnexae .......................................................................................................................................................... 223 Urinary Tract .............................................................................................................................................................................. 224 Head and Neck .......................................................................................................................................................................... 225 The Thigh .................................................................................................................................................................................. 226 The Leg ..................................................................................................................................................................................... 227 The Arm ..................................................................................................................................................................................... 228 © Alasdair Scott, 2012 217 Chest Wall Surface Landmarks Superior angle of scapula : T2 Inferior angle of scapula: T8 Sternal angle: T4/5 Subcostal plane: L3 Nipples: 4th ICS Surface Markings Pleura: 8th, 10th and 12th ribs Lung: 6th, 8th and 10th ribs Oblique fissure T4 in midline posteriorly 5th rib laterally 6th costal cartilage anteriorly Horizontal fissure Follows contour of 4th rib anteriorly The Breast Attached between rib 2-6 Axillary tail follows lower margin of pec major Breast Mammary glands and connective tissue stroma Anterior to ribs 2–6 and extend superolaterally to the mid-axillary line. Mammary glands Ducts and secretory lobules converge to form 15-20 lactiferous ducts which each open onto the nipple. Connective tissue Surrounds mammary glands Suspensory lgts. (of Cooper) are continuous with the dermis and support the breast. Layer of loose connective tissue (retromammary space) separates the breast from the deep fascia and allows some movement over the underlying structures. Arterial Supply Laterally: vessels from the axillary artery Medially: branches from the internal thoracic artery nd th 2 – 4 intercostals via superficial perforating branches Lymphatic Drainage 75% drain superolaterally into axillary nodes Remainder into deep parasternal nodes Thoracic Plane: T4/5 – Sternal Angle Aortic arch: beginning and end SVC enters the RA Bifurcation of the pulmonary arterial trunk Carina 2nd costosternal joint Division of superior and inferior mediastinum © Alasdair Scott, 2012 218 Thoracic Cavity The Diaphragm Recurrent Laryngeal Nerve Superior Mediastinum Chylothorax 3 main openings Aortic hiatus: T12 Oesophagus: T10 Vena Cava: T8 Congenital hernia Morgagni: anterior Bochdalek: posterior Boundaries Sup: thoracic inlet Inf: angle of Louis: T4/5 (Thoracic Plane) Lat: pleura Ant: manubrium Post: T1-4 Contents Arteries: aortic arch and branches Veins: brachiocephalics, SVC Nerves: vagi, phrenics, L recurrent laryngeal Organs: thymus, trachea, oesophagus, thoracic duct, LNs Anterior Mediastinum Anterior to pericardium Thymus and LNs Posterior Mediastinum Descending aorta Azygous vein and hemiazygous Thoracic duct Esophagus Sympathetic trunks RLN supplies all intrinsic laryngeal muscles except cricothyroid (external branch of sup. laryngeal N.) Left nerve recurs around the ligamentum arteriosum (remnant of ductus arteriosum) Right nerve recurs around right subclavian artery Damage may occur during thyroid or parathyroid surgery or due to bronchogenic Ca Unilateral palsy → hoarseness (bilat → aphonia) Thoracic duct drains whole lymphatic field below diaphragm and left half of lymphatics above it. Surgical procedures involving the posterior mediastinum or neck can → lymph leak into thoracic cavity. Venous System at the Thoracic Outlet Subclavian veins join internal jugular veins behind SCJs Brachiocephalic veins form SVC behind right 1st sternocostal joint. SVC enters RA @ right 3rd sternocostal joint Oesophagus 25cm long muscular tube (40cm from GOJ → lips) Path Starts at level of cricoid cartilage (C6) Lies in the visceral column in the neck Runs in posterior mediastinum and passes through right crus of diaphragm @ T10. Continues for 2-3cm before entering the cardia 4 locations of narrowing Level of cricoid: junction c̄ pharynx Posterior to aortic arch Posterior to left main bronchus LOS Histology rds Divided into 3 : reflects change in musculature from striated → mixed → smooth. Lined by non-keratinising squamous epithelium. Z-line: transition from squamous → gastric columnar Gastro-oesophageal Sphincter 3 main components to prevent reflux LOS: 4cm long hypertrophied smooth muscle Extrinsic Sphincter: skeletal muscle of R crus of diaphragm Physiologic sphincter Distal component projects into abdominal cavity and ↑ IAP → compression Angle of His also forms valve preventing reflux. © Alasdair Scott, 2012 219 Inguinal Region Deep Ring 1.5cm above femoral pulse, or Mid-point of inguinal ligament (ASIS → PT) Superficial Ring Split in external oblique aponeurosis just superior and medial to the pubic tubercle. Inguinal canal 4cm long Floor: inguinal ligament Roof: arching fibres of internal oblique and transversus abdominis Anterior: external oblique aponeurosis + internal oblique for lateral 3rd Posterior: transversalis fascia + conjoint tendon for medial 3rd Laterally: deep ring Medially: pubic tubercle Conjoint tendon: combined insertion of internal oblique and transversus abdominis into pubic crest and pectineal line Contents M: ilioinguinal N. + spermatic cord F: ilioinguinal N. + genital branch of genitofemoral N. + round lig. of uterus Ilioinguinal N. (L1) Enters canal directly through anterior wall: does not pass through the deep ring Exits through the superficial ring Supplies skin at the root of the penis and the scrotum (or the labia majus) and small area of skin of upper inner thigh. Genital branch of the genitofemoral N. (L1/2) Supplies cremaster muscle and scrotal skin or the labia majus. Spermatic Cord 3 layers of fascia External spermatic: from external oblique Cremasteric: from internal oblique Internal spermatic: from transversalis fascia 3 arteries Testicular: from aorta Cremasteric: from inf. epigastric Artery of the vas: from inf. vesicular A. 3 veins Pampiniform plexus (R→IVC, L→ Left renal) Cremasteric vein Vein of the vas 2 nerves Nerve to cremaster: from genito-femoral N. Sympathetic fibres from T10-11 (Ilioinguinal N. is on the cord) 3 other structures The vas deferens Lymphatics of the testis (→para-aortic nodes) Obliterated processus vaginalis Femoral Sheath In femoral triangle, femoral artery, vein and lymphatics are enclosed w/I femoral sheath. Sheath continuous superiorly c̄ transversalis fascia Each structure has its own compartment Most medial compartment = femoral canal Ant: inguinal ligament Post: pectineal lig (lig. of Cooper) + pectineus Med: lacunar lig. and pubic bone Lat: femoral vein Contents: fat and Cloquet’s node Operative Anatomy Inferior epigastric vessels Arise from external iliac vessels immediately superior to inguinal ligament. Can be seen passing deep to the posterior wall (transversalis fascia) Sac arises lateral to vessels = indirect hernia Sac arises medial to vessels = direct hernia Hesselbach’s triangle Area of entry for direct hernias through posterior wall Laterally: inf. epigastric artery Medially: rectus abdominis muscle Inferiorly: inguinal ligament © Alasdair Scott, 2012 220 Abdominal Wall and Surface Anatomy Abdominal Wall Surface Anatomy Layers Skin Camper’s fascia: fatty Scarpa’s fascia: membranous External oblique Internal oblique (nerves and vessels) Transversus abdominis Transversalis fascia Pre-peritoneal fat Parietal peritoneum L1: Transpyloric Plane of Addison Midway between jugular notch and pubic symphysis 9th costal cartilage Pyloric orifice and D1 DJ flexure Fundus of the gallbladder Left and right colic flexures Neck of the pancreas Lower part of left renal hilum, upper part of right Origin of the SMA and coeliac trunk Innervation Intercostal nerves: T7-T11 Subcostal nerve: T12 Ilio-inguinal and ilio-hypogastric nerves: L1 Blood Supply Superiorly Superficial: musculophrenic A Deep: superior epigastric A. Both terminal branches of int. thoracic A. Inferiorly Superficial: superficial epigastric + superficial circumflex iliac As.: branches of the femoral A. Deep: Inf. epigastric + deep circumflex iliac As.: branches of the external iliac A. Rectus Sheath Arcuate line of Douglas: midway between umbilicus and pubic symphysis Above the arcuate line the sheath completely encloses the rectus muscle. Below the arcuate line the sheath is deficient posteriorly and the rectus is in direct contact c̄ transversalis fascia. This arrangement allows expansion of pelvic contents into the abdomen. Semilunar lines: aponeurosis of ext. oblique at its line of division to enclose the rectus. © Alasdair Scott, 2012 L3: Subcostal Plane th Joins lowest points of the 10 ribs Origin of IMA L4: Intercristal Plane Joins the highest points of the iliac crests Bifurcation of the aorta Surface Markings Umbilicus Inconsistent position Normally L3/L4 disc Liver Upper border at the level of the fifth ICS on each side Lower border from tip of 10th rib on right to just medial to mid clavicular line in the left 5th ICS Gallbladder Where the mid clavicular line meets the right costal margin: 9th costal cartilage Spleen Underlies ribs 9-11 on the left. 221 The Bowel Duodenum 4 parts Mostly retroperitoneal D1 D2 D3 D4 Duodenal cap Commonest place for DUs Overlapped by gallbladder Stones can erode into D1 → ileus Descending part Contains Major Duodenal Papilla (mid → hind gut) Inferior part Can be compressed by SMA aneurysm Ascending part Ends at DJ flexure / Ligament of Trietz PUD Perforation Posterior DU can erode into GDA → massive haematemesis Anterior DU → pneumoperitoneum and peritonitis Jejunum Proximal 2/5 Larger diameter + thicker wall Less prominent arcades Longer vasa recta Ileum Distal 3/5 Narrower diameter + thinner wall More prominent arcades Shorter vasa recta Appendix Base is consistently found @ confluence of the caecal taenia coli Position of rest of appendix is highly variable Retro-caecal: 75% Sub-caecal and pelvic: 20% Retro- or pre-ileal: 5% Appendicular artery runs in the mesoappendix and is a branch of the ileocolic artery. Appendicitis Pain Initially visceral pain carried by sympathetic afferents in the lesser splanchnic nerve which refers to T10 dermatome Later peritonitis → somatic pain and localisation to RIF. Meckel’s Diverticulum Ileal remnant of vitellointestinal duct Joins yoke sac to midgut lumen A true diverticulum 2 inches long 2 ft from ileocaecal valve on antimesenteric border 2% of population 2% symptomatic: PR bleed, diverticulitis, intussusception Contain ectopic gastric or pancreatic tissue © Alasdair Scott, 2012 Distinguishing Features of Large Bowel Large diameter Condensation of longitudinal muscle → taenia coli Epiploic appendages Sacculations / Haustra Rectum 12cm Sacral promontory to levator ani muscle The 3 tenia coli fuse around the rectum to form a continuous muscle layer. Anal Canal 4cm Levator ani muscle to anal verge Upper 2/3 of canal Lined by columnar epithelium Insensate Sup. rectal artery and vein Internal iliac nodes Distal 1/3 of canal Lined by squamous epithelium Sensate Middle and inf. rectal arteries and veins Superficial inguinal nodes Dentate line = squamomucosal junction White line = where anal canal becomes true skin Anal Sphincters Internal Thickening of rectal smooth muscle Involuntary control External Three rings of skeletal muscle Deep Superficial Subcutaneous Voluntary control Anorectal Ring Deep segment of external sphincter which is continuous c̄ puboretalis muscle (part of levator ani) Palpable on PR ~5cm from the anus Demarcates junction between anal canal and rectum. Must be preserved to maintain continence Common Areas for Collections Subphrenic recess Hepatorenal recess: Morrison’s pouch Lesser sac Paracolic gutters Small bowel (interloop spaces) Pelvis: Pouch of Douglas 222 Abdomen Neurovascular Supply Gastrointestinal Adnexae Arteries Liver L1: Coeliac Trunk Left gastric Common hepatic Splenic L1: SMA Inf. pancreaticoduodenal Ileal and jejunal vessels Middle colic Right colic Ileocolic L1: Renal Vessels L3: IMA Left colic Sigmoidal branches Superior rectal artery Marginal Artery of Drummond Anastomotic artery between middle colic and ascending branch of left colic May maintain hind-gut blood supply even when IMA stenosed. Functionally divided by line through gallbladder fossa and IVC. Split into 8 Couinaud segments 4 on Right 3 on Left Caudate lobe is functionally distinct Gallbladder Stores and concentrates ~50ml of bile Supplied by cystic artery but also receives rich supply from the gallbladder bed: gangrene is rare Calot’s Triangle Sup: inferior edge of liver Med: CHD and RHD Inf: cystic duct Contains Cystic artery Calot’s/Lund’s node Aberrant RHA Nerves Sympathetic Thoracic an d lumbar splanchnic nerves Parasympathetic Vagus nerve Pelvic splanchnic nerves Splanchnic Nerves Greater Splanchnic Nerve (T5-T10): foregut Lesser Splanchnic Nerve (T10-T11): midgut Least Splanchnic Nerve (T12): kidneys Lumbar Splanchnic Nerve (L1-L2): hindgut Enteric NS Independent of CNS but does receive some sympathetic and parasympathetic input. Two layers Myenteric plexus of Auerbach Submucosal plexus of Meisner Lymphatics Follow arteries Para-aortic nodes associated c̄ each major branch Drain superiorly to cisterna chyli → thoracic duct © Alasdair Scott, 2012 223 Urinary Tract Ureter Course 25cm long Start at renal pelvis: L1 on left, slightly lower on right Runs inferiorly on the psoas muscle anterior to the tips of the transverse processes of the lumbar vertebrae Cross sacroiliac joints passing anterior to iliac bifurcation Pass posteriorly to the ischial spines then anteriorly to the bladder. Ureteric Narrowings Pelviureteric junction Crossing the iliac vessels at the pelvic brim Vesicoureteric junction Male Urethra 20cm long 4 main parts Pre-prostatic: internal urethral sphincter Prostatic Openings of ejaculatory ducts Widest part Membranous External urethral sphincter Narrowest part Spongy: longest part (for most) Coverings of the Vas Deferens in the Scrotum Skin Superficial scrotal fascia (Dartos fascia) External spermatic fascia Cremasteric fascia Internal spermatic fascia Pre-peritoneal fat Tunica vaginalis Vas © Alasdair Scott, 2012 224 Head and Neck Neck Fascia Superficial: platysma Investing Completely surrounds neck Encloses SCM and trapezius Pre-vertebral Surrounds vertebral column and associated muscles Pre-tracheal Surrounds trachea, oesophagus and thyroid Carotid Sheath Surrounds internal carotid, internal jugular + CNX Thyroid Gland Lies over 3rd-4th tracheal cartilages Invested in pretracheal fascia Strap muscles lie anterior Parathyroid glands posteriorly 2 arteries Sup. thyroid (ECA) Inf. thyroid (thyrocervical trunk) 3 veins: sup, middle and inf. thyroid veins Larynx Innervation Motor Recurrent laryngeal N. supplies all intrinsic muscles except cricothyroid External branch of superior laryngeal N. supplies cricothyroid. Sensory Int. branch of superior laryngeal N.: above folds Recurrent laryngeal N.: below folds Branches of the External Carotid Artery Superior thyroid Ascending pharyngeal Lingual Facial Occipital Posterior auricular Superficial temporal Maxillary Facial Nerve Arises in medulla and emerges between pons and medulla to travel in the internal auditory canal. Exits the internal auditory canal and forms the geniculate ganglion in the middle ear Traverses the length of the temporal bone, giving off 3 branches Greater superficial petrosal N.: lacrimation Nerve to stapedius: lesions → hyperacusis Chorda tympani: anterior 2/3 taste Exists temporal bone via stylomastoid foramen and runs into parotid gland. Gives off nerves to post. belly of digastric and stylohyoid Divides into 5 motor branches Temporal Zygomatic Buccal Mandibular Cervical Upper motor neurone lesions spare the forehead as suprapontine crossover → bilateral representation Semon’s Law Transection of RLN → complete paralysis c̄ cords half aducted / abducted Cannot speak or cough Trauma but not transection of RLN → partial paralysis c̄ cords adducted Cannot breath if bilateral Triangles of the Neck Anterior Ant. margin of SCM Midline Ramus of the mandible Roof: investing fascia Submandibular Mental process Ramus of the mandible Line between two angles of the mandible Posterior Post. margin of SCM Ant. margin of trapezius Mid 1/3 of clavicle © Alasdair Scott, 2012 225 The Thigh Hip Joint Structure Ball and socket synovial joint between the head of the femur and the lunate surface of the acetabulum. Lgt. teres connects fovea on femoral head to acetabular fossa and transmits the artery lgt. teres (from obturator A.). Fibrous capsule composed of three lgts (ilio-, ischio and pubofemoral lgts.) and extends from margin of acetabulum to intertrochanteric line of the femur. Muscles Movement Segment Nerve Muscles Flexion L2/3 Femoral Iliopsoas Rectus femoris Sartorius Extension L4/5 Inf. gluteal Gluteus maximus Adduction L2/3 Obturator Adductors Abduction L4/5 Sup. gluteal Gluteus minimus Gluteus medius Int. rotation L2/3 Obturator Adductors Ext. rotation L5/S1 Various Short ext. rotators Gluteus maximus Blood Supply to the femoral head 1. Intramedullary vessels 2. Retinacular vessels from the medial and lateral circumflex femoral arterie Distal → proximal in the capsule. 3. Artery of the ligamentum teres from the obturator artery (only contributes in children) Femoral Triangle: SAIL Lateral: medial margin of Sartorius Medial: medial margin of Adductor longus Base: Inguinal Ligament Floor: pectineus and adductor longus Apex: continuous c̄ Hunter’s canal Contents: femoral N., A., V. and canal Hunter’s (Adductor) Canal Anterolateral: vastus medialis Posterior: adductor longus and magnus Roof and medially: Sartorius Contents: SFA, femoral V., saphenous nerve Anterior Compartment of the Thigh Function Flex the hip: L2-3 Extend the knee: L3-4 Nerve Femoral N.: L2-L4 Muscles Iliopsoas Sartorius: ASIS → pes anserinus Rectus femoris: AIIS → patellar lgt. Vastus muscles Medial Compartment of the Thigh Gluteal Region Muscles Abductors: superior gluteal N. Gluteus medius Gluteus minimus Extensor: inferior gluteal N. Gluteus maximus Short external rotators Piriformis Obturator internus Quadratus femoris Gemelli: inf. + sup. Sciatic N.: L4-S3 Enters via greater sciatic foramen below piriformis Found in lower medial quadrant of gluteal region Motor Hamstrings Hamstring part of adductor magnus Muscles of leg and foot Sensory Lateral leg and foot Sole and dorsum of foot © Alasdair Scott, 2012 Function Adduct and externally rotate the hip: L2-3 Nerve Obturator N.: L2-L4 Muscles Pectineus (femoral N.) Adductor brevis, longus and magnus Gracilis Obturator externus Posterior Compartment of the Thigh Function Extend the hip: L4-5 Flex the knee: L5-S1 Nerve Tibial division of sciatic.: L4-S3 Muscles Biceps femoris Semitendinosus Semimembranosus 226 The Leg The Knee Joint Posterior Compartment of the Leg Structure Weight-bearing articulation between femur and tibia Articulation between patella and femur ↓ tendon wear ↑ moment around knee joint. Function Plantarflexion of the foot: S1-2 Flex the toes and invert the foot Menisci 2 fibrocartilaginous menisci Medial meniscus attached at its margin to medial collateral lgt. Bursae Suprapatellar bursa: continuous c̄ joint capsule Subcutaneous prepatellar bursa Can → housemaids knee Deep and superficial infrapatallar bursae Ligaments Patellar lgt.: inf. patella to tibial tuberosity Collaterals: medial and lateral Anterior cruciate Prevents anterior displacement of the tibia relative to the femur Posterior cruciate Prevents posterior displacement of the tibia relative to the femur Muscles Movement Segment Nerve Muscles Flexion L5/S1 Sciatic (Tibial) Hamstrings - biceps femoris - semimem - semiten Sartorius ( fem) Extension L3/4 Femoral Quads - Vastus muscles - Rectus femoris Popliteal Fossa Superior Medial: semitendinosus and semimembranosus Lateral: biceps femoris Inferior Medial: medial head of gastrocnemius Lateral: lateral head of gastrocnemius + plantaris Floor: capsule of knee joint Roof: deep fascia (continuous c̄ fascia lata) Nerve Tibial nerve Muscles Superficial Gastrocnemius Plantaris Soleus Deep Popliteus FHL FDL Tibialis posterior (L5) Lateral Compartment of Leg Function Evert the foot: S1 Nerve Superficial fibular N. Muscles Fibularis longus Fibularis brevis Anterior Compartment of Leg Function Dorsiflexion of the foot: L5-S1 Extension of the toes and eversion of the foot: S1 Nerve Deep fibular N. Supplies skin between great and 2nd toe Muscles Tibialis anterior EHL EDL Fibularis tertius Contents Popliteal artery and vein Tibial nerve Common fibular nerve Blood Supply Popliteal artery → anterior + posterior tibial arteries Anterior tibial Supplies anterior compartment of leg Palpable as dorsalis pedis A. Posterior tibial Supplies posterior compartment of leg Gives rise to fibular A. (supplies lat compartment) Palpable behind the medial malleolus © Alasdair Scott, 2012 227 The Arm Brachial Plexus C5-T1 Roots leave vertebral column between scalenus anterior and medius. Divisions occur under the clavicle, medial to coracoid process. Plexus has intimate relationship c̄ subclavian and brachial arteries. Median N. is formed anterior to brachial artery. Anatomical Snuff Box Lateral: APL and EPB Medial: EPL Proximal: radial styloid process Floor: scaphoid and trapezium Contents: radial artery, cephalic vein, dorsal cutaneous branch of radial nerve. Carpal Tunnel C5 Lat MC C6 Post C7 Axillary Median Radial C8 Med T1 Divisions (6) Roots (5) Cords (3) Trunks (3) Ulnar Carpal tunnel formed by flexor retinaculum and carpal bones. Contains 4 tendons of FDS 4 tendons of FDP 1 tendon of FPL Median N. Median N. supplies LLOAF (aBductor pollicis brevis) Palmer cutaneous branch travels superficial to flexor retinaculum → spares sensation over thenar area. Anterior Compartment of the Arm Function: forearm flexion (C5-6) Nerve: musculocutaneous Muscles Biceps brachii Coracobrachialis Brachialis Posterior Compartment of the Arm Function: forearm extension (C7) Nerve: radial Muscle: triceps Antecubital Fossa Superficial: median cubital vein Deep Radial nerve Brachial artery Median nerve Anterior Compartment of the Forearm Function: wrist and finger flexion (C7-8) Nerve: mostly median N. Muscles Superficial Pronator teres FCR Palmaris longus FDS FCU (ulnar N.) Deep FDP (ulnar and median Ns.) FPL Pronator quadratus © Alasdair Scott, 2012 228