By Laura Parker To be able to define Asthma and COPD To have an understanding of the pathogenesis of each disease and the common causes / risk factors associated To be able to recognise the presentation of patient with Asthma or COPD To be able to manage an acute exacerbation of Asthma / COPD To understand the long term management options available for clinicians for Asthma / COPD Asthma: chronic inflammatory disease of the lungs characterised by airway obstruction that is reversible Extrinsic Immune Onset childhood Eosiniphilia blood & sputum Intrinsic Abnormal autonomic reulation of airways Onset Adulthood Eosinophilia sputum Assoc w/ chronic bronchitis • 5.4 million receive treatment UK (~5%) Most common chronic medical condition in children • Risk Factors • • • Personal history of atopy Family history of asthma or atopy SYMTPOMS • • • • • • • Wheeze Cough Difficulty breathing Chest tightness ?diurnal variation ?triggers ?atopy SIGNS • • • Normal between attacks Prolonged expiration Wheeze Respiratory distress I G V I T A M I N D Idiopathic or Iatrogenic Genetic: Vascular: Infective: Trauma: Autoimmune: Metabollic: Inflammatory: Neoplastic: Degenerative: Anaphylaxis eg penicillin allergic patient given penicillin alpha 1 Antitrypsin disease PE, Anaemia Pneumonia, Bronchiectasis Tension pneumothorax Autoimmune: Metabollic: COPD, Asthma Lung Ca Fibrosis Inpatient • Peak flow • Sputum • Urine • Bloods • ABG • ECG • CXR • Pulmonary Function Tests • +/- further imaging ( CT, HRCT) A,B,C,D,E… • OXYGEN • • NEBS • • • • Sats 94-98% BETA AGONIST IPRATROPIUM STERIODS +/• • oral / IV IV MgSO4 ABX if suspicious infective exacerbation Aims: No symptoms during the day No waking at night due to symptoms No exacerbations No need for rescue medication No exercise limitation Normal lung function Yearly Asthma Review Smoking status Triggers and avoidance Concordance Inhaler technique Stepwise approach…. Chronic Obstructive Pulmonary Disease (COPD): collective term for an inflammatory lung disease in which airway obstruction is progressive and only partially reversible by bronchodilators Chronic Bronchitis: persistent cough with sputum production for > 3months/year for 2 years Emphysema: permanent enlargement of air spaces distal to the terminal bronchiole due to alveolar septal destruction • • • • Est 3 million people UK Prevalence 1.5% population Risk factors SMOKING (effects approx 15% smokers) Increases with age More common in men More common deprived communities SYMPTOMS • • • • • • • Wheeze Chronic cough SOBOE Regular sputum production Frequent winter 'bronchitis” ? >35yrs old ?hx of smoking SIGNS • • • • • • Pink puffers / blue bloaters Respiratory distress Hyper-expansion Hyper-resonant Prolonged expiration Wheeze Anaphylaxis eg penicillin allergic patient given penicillin alpha-1 Antitrypsin PE, Anaemia Pneumonia, Bronchiectasis Tension pneumothorax Autoimmune: Metabollic: COPD, Asthma Lung Ca Fibrosis • • • • • • • • • Inpatient Peak flow Sputum Urine Bloods ABG ECG CXR Pulmonary Function Tests +/- further imaging ( CT, HRCT) A,B,C,D,E Controlled oxygen therapy Aim Saturations 88-92% Nebulised bronchodilators Oral corticosteroids +/ABX NIV Multi-Disciplinary Smoking Cessation Vaccination Mucolytics Oral bronchodilators eg theophylline (nb narrow therapeutic window) therapeutic range of theophylline is 10-20 mg/litre Oxygen LTOT / SBOT NIV Surgery: bullectomy, lung volume reduction surgery and lung transplantation To be able to define Asthma and COPD To have an understanding of the pathogenesis of each disease and the common causes / risk factors associated To be able to recognise the presentation of patient with Asthma or COPD To be able to manage an acute exacerbation of Asthma / COPD To understand the long term management options available for clinicians for Asthma / COPD 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Remove cap Shake the device If you have not used the inhaler for a week or more, or it is the first time you have used the inhaler, spray it into the air before using to check that it works Hold the inhaler upright with you forefinger on the top Big breath out Place the mouthpiece in your mouth between your teeth, and close your lips around it Start to breathe in slowly and deeply, at the same time, press down on the canister releasing a “mist” Hold your breath for as long as is comfortable, then breathe out as normal. If you need 2 puffs, wait 30 seconds then repeat Do not release two puffs at the same time Replace cap Accurate History Pack year = no. cigarettes smoked per day 20 X no. years smoked Assess “readiness to change” Cessation Nicotine Replacement Therapy • Patches Bupropion (nb reduces seizure threshold) • Varenicline (champix) (nb use in caution in a Pt w/ psych hx) • E-cigarettes: evidence controversial, recent BMJ article suggest they encourage and glamourize smoking, not available by prescription at present • A 64 year old gentleman presents to A&E with increasing SOB over the last 3 days. This is associated with a cough productive of thick, green sputum. He has a past medical history of “asthma”, but he has smoked 50 cigarettes a day for the past 40 years. Obs: RR 30 O2 sats 85% on 21% HR 120 BP 138/82. O/E he is using his accessory muscles to breathe, bilateral diffuse coarse crepitations and widespread wheeze Differential diagnoses? Initial management? Investigations? Treatment? Patient is successfully treated for infective exacerbation of COPD and discharged from hospital. You see him in your GP surgery a few weeks later for a medication review. How may you optimise the management of this patient? http://emedicine.medscape.com/article/296301-overview http://www.patient.co.uk/doctor/bronchial-asthma British Guideline on the Management of Asthma. British Thoracic Society and the Scottish Intercollegiate Guidelines Network. (Revised January 2012). Available online at http://www.britthoracic.org.uk Regulation in chronic obstructive pulmonary disease: the role of regulatory T-cells and Th17 cells: Nina Lane*, R. Adrian Robins*, Jonathan Corne† and Lucy Fairclough* Clinical Science (2010) 119, (75–86) Chronic Obstructive Pulmonary Disease (2010). Clinical Gudeline 101. National Institute for Health and Care Excellence. Available online athttp://www.nice.org.uk/CG101 How to use inhaled devices: http://www.medicines.org.uk/guides/pages/how-to-use-yourinhaler-videos BNF Are There Any Questions?