THORACIC INCISIONS PRESENTER: DR ANEFU, N. E MODERATOR:DR S. EDAIGBINI AHMADU BELLO UNIVERSITY TEACHING HOSPITAL,ZARIA,NIGERIA OUTLINE • INTRODUCTION • HISTORICAL PERSPECTIVES • ANATOMY OF THE CHEST • BASIS • • • • • GENERAL PRINCIPLE TYPES OF THORACIC INCISIONS CURRENT TREND FUTURE TREND CONCLUTION INTRODUCTION • Incision;- Is a surgical wound made by a surgeon on the skin, with intension of gaining access to a lesion beneath or cavity. • Such wounds created anywhere on the chest (thoracic) wall is thoracic incision Historical perspective • Development evolution thoracic incision is closely related to the development of thoracic surgery • Used in ancient time for draining abscesses in the chest Anatomy of the chest CHEST WALL • Bony rib cage;- manubrum, sternum, 12 pair of rib, coastal cartilage & thoracic vertebrae • Soft tissue covering:- muscles, neurovascular bundles, other connective tissues • Two aperture • Superior=root of the neck • Inferiorly=separated from abdominal cavity by diaphragm Lungs surface markings in the ribcage • In spite of the large intra-thoracic space, separate pleural spaces &rigid- ribbed chest wall, its anatomy makes specific incision selection crucial to the ease & safety of a given thoracic procedure • Respiration is still possible; due to the nature of the joint & muscular attachments General principles • Patient evaluation & clinical assessment – History, P.E, Lab & Radiological investigations-LFT, Spirometric measurement,SPO2,CXR, – Performance score rating • Patient education/counseling/consent • Start Chest physiotherapy • Peri-op monitoring/medications Gen. principles • Anaesthesia(G.A,double lumen ETT or single lung intubation) • Analgesia( epidural catheters,intercostal nerve block) • Surgery • Antibiotics prophylaxis • Follow-up Analgesia CTU-ABUTH • Taken very seriously • Intra-op =I.V pentazoxine • Post-op =Triple px – Opioid; pentazoxine – NSAIDs;diclofenac – Acetaminophen;PCM Prophylactic Antibiotics-CTU • Intra-op =3rd generation cephalosporin e.g ceftriaxone + metronidazole, repeated after 8hrs, • Post-op =same extended X 2-3/7 Surgical principles • • • • To allow a successful surgical outcome Adequate exposure Preserve chest-wall function & appearance Incision along langers line or positioned to minimize visibility • Closure-rigid approximation & strict layered closure • Optimal approach depends on Bony anatomy Location & extent of pathology Location of the hilum Objective of the procedure Chest drainage Types of thoracic incisions • Sternotomy • Thoracotomy • Axillary thoracotomy • Anterior mediastinotomy • Thoracoabdominal incision Types cont… • Bilateral Trans-sternal thoracotomy( clam-shell incision) • Extra-thoracic approaches to the thorax Sternotomy incisions • Partial –Hemisternotomy (spares 6-8cm skin) • Complete –Suprasternal notchï xyphoid process –Cosmetically appealing type of incision e.g inframammary (bikini type) incision Median sternotomy incision Sternal spreader applied Median sternotomy Indications exposure of ant. & middle mediast lower cervical procedures Tracheal resection& reconstruction Indications • Excision of thyroid masses & parathyroid adenomas • Excision of cervical oesophageal tumours • Exposure of heart & great vessels • In cardiopulmonary bypass Advantages • • • • • Quick to perform Excellent exposure Safe Heals quickly Less incisional pain Disadvantages • Many finds the vertical incision unsighty • Gives limited exposure of the lower chest & posterior mediastinum • May lead to post-op complications-unsteable sternum, infections Technique • Standard sternotomy • Open sternotomy • Re-operative sternotomy • Partial sternal split CLOSURE:Interlucking wire suture technique Less invasive sternotomy incisions • Hemisternotomy- suprasternal notch,tee-off to the R at interspace 4 or xyphoid,tee-off,R, at interspace 2 • Full sternotomy with skin sparing • Bikini-type (inframammary) incision- cosmesis Less invasive sternotomy incisions Post-op care • ICU MANAGEMENT/MONITORING • O2 DELIVERY VIA NEBULIZER • PAIN MANAGEMENT( I.Vanalgesics,Eidural nr block) • PHYSIOTHERAPY COMPLICATIONS • Anaesthetic:- arrhythmias, laryngeal spasm Specific :- Early; haemorrhage,injury to contiguous structures, pneumothorax, haemothorax, Late; infection, empyema thoracis, post surgery pain Complications • Mediastinitis (S.aureu31%,E.coli3%,enterococcus 2%) • Sternal osteomyelitis • Brachial plexus injury,incidence:1.4-6.5% Thoracotomy • Standard thoracotomy incisions • Defined arbitrarily in relation to the position of Latissismus dorsi muscle,which is laterally sited on the chest wall Types of thoracotomy incisions • • • • • • Lateral Anterior Anterolateral Posterolateral Posterior others The numenclature for std thoracotomy incisions Indications for posterolateral incision • Standard thoracotomy incisions can be used for a wide range of surgical procedures involving; • The Heart • Oesophagus • Mediastinum • Ipsilateral lung Advantages • Flexibility of the incision • Wide range of intra-thoracic exposure • Proven experience with these incisions has made them the standard thoracic incisional approach Disadvantages • Has potential for poor exposure , if wrong interspace is chosen • Unilateral hemithorax exposure • Incisional pain • Disability related to division of chest wall muscles • Detrimental effect on pulmonary function Technique (posterolateral) • Induction using single/double lumen tube • Appropriate monitoring • Anaesthesia-G.A+ETT • Positioning –lateral decubitus position • Cleaning/drapping • • • • • Crescent or “lazy-S”incision, transversely Dissected down & scapular retracted Pleural space entered Pleural/mediastinal drainage Thoracotomy closure Option for entering the pleural space after posterolateral thoracotomy • Intercostal approach-incising i.c muscles • Utilizing intercostal incision but to divide one or more ribs • To resect a rib, enter through its periosteal bed Anterior & anterolateral thoracotomy • • • • • • Indications Has greater use historically Used for pulmonary resection Cardiac procedures Management of mediastinal masses Oesophageal pathology Technique • Monittoring • Anaesthesia are same as posterolatral • Supine position • Chest elevated at 30-45 • Curved submammary incision, extended laterally(anterolateral) Anterolateral thoracotomy incisions Lateral thoracotomy • Within confines of latissimus dorsi • Transverse incision • 1-2cm inferior to the scapular Complications • • • • • Post thoracotomy incision pain Wound infection Wound dehiscence Bronchopleural fistula-8% Empyema thoracis-2.2% Muscle-sparing thoracotomy • Indications –As in std thoracotomy –Variant of std thoracotomy –Well established –Has less complications Muscle sparing anterolateral thoracotomy incision Advantages • • • • • Less early post-op pains Greater shoulder girdle strength Most result in quick closure Preserve chest wall muscle Prevent chest wall deformity Axillary thoracotomy • Indications –1st rib disection –Apical bleb Dx –Mgt of spontaneous pneumothorax with apical pleurectomy or pleurodesis –Staging of lung cancer Patient positioning & incision for a vertical axillary incision ADVANTAGES • • • • • Small incision Quickly performed Muscle sparing Cosmetically appealing Ideal for pt with poor pulmonary function Disadv • Limited exposure • Intercostobrachial nerve injury • Proximal lung thorcic nerve injury Complications • Very minimal • Infection-0.7% • Limited shoulder mobility-0.5% Anterior mediastinotomy (chamberlain procedure) • Used in scalene lymph node biopsy • Exploratory thoracotomy • In cases of lung cancer( inoperable) Anterior mediastinotomy(Chamberlain) Thoracosternotomy(Clam shell) Left thoracoabdominal incision • provides excellent exposures for procedures involving • the spleen • Stomach • L hemidiaphragm • Aorta • lower oesophagus Current trend Towards minimally invasive procedures Thoracic- VATS (video asst thoracoscopic surgery) e.g TEF LIGATION Cardiac- OPCAB (off-pump coronary art. Bypass) MIDCAB (mini invas dir coron art. Bypass) • Endoscopic aortic/mitral valve replacement Conclusion • Great achievement has been made in cardiothorcic surgery • Emphasy now is on minimally invasive/thoracoscopic procedures • We still use thorcic incisions due to our own limitations • There is great hope for the future. Thank you for listening