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level: Thoracoscopy, Mediastinoscopy

Questions and Answers List

level questions: Thoracoscopy, Mediastinoscopy

QuestionAnswer
What are things to be aware of in thoracic sympathectomy?- Horner’s syndrome (ptosis, myosis, enophtalmy, and palpebral anhydrosis), - Reactive hyperhydrosis of the lower body, - Dry skin of the upper body
What are important anatomic landmarks and surgical techniques for thoracoscopic surgery?Intercostal arteries come from descending aorta. • Classical thoracotomy techniques (5th intercostal space incision), big and multiple retractors used: - invasive, - trauma to chest wall muscles, - trauma to intercostal nerves with longterm consequences (chest wall paresthesia) due to retractors and closure stitches, - chronic pleuritic pain (weather changes). • Minimally invasive video-assisted techniques (VATS) avoid most of these side effects.
What are advantages of VATS?• Less invasive. • Less traumatic to chest wall muscles and intercostal nerves. • Less pleuritic pain. • Less pulmonary post-operative complications. • Less cardiac post-operative complications. • Faster recovery. • Less hospital stay
What are thoracoscopic surgery general principles?• General anesthesia. • Oro-tracheal selective intubation: double-lumen tube (Carlens, Malinckrodt®) Instruments: Trocars Patient Positioning (triportal trocar positioning)
What are indications of VATS?• Diagnostic pleuroscopy. • Pleural biopsies. • Lung biopsies. • Mediastinal biopsies. • Resection of pleural adhesions: (empyema, hemothorax, chronic effusion) • Pleurectomy (recurrent pneumothorax.) • Pleurodesis: (pleural carcinosis, recurrent benign pleural effusion) • Pericardial effusion (pericardial biopsy, pericardiocenthesis (posterior loculations), creation of a pleuro-pericardial window (drainage of benign pericardial effusion into the pleura). • Bullae resection: (emphysema (obstructive disease), bullous disease of the pulmonary apex (blebs)) • Pulmonary resections: nodule, wedge, lobectomy, pneumonectomy)
What is indication for VATS thoracic sympathectomy?- Hyperhidrosis of the hands, - Erythrophobia (increased reactivness of the face: excessive redness), - Raynaud’s disease (isolated), - Ischemic disease of digits.
Table of indications of VATS dX?.
Table of indication of VATS tx?.
Table of CI of VATS?.
What are indications of VATS in sponteneous pneumothorax bleb rupture?- Persistent air leak after adequate drainage, - Recurrent pneumothorax (1st episode), - Bilateral pneumothorax, - First episode of pneumothorax, for socioprofessional obligations (divers, pilots, etc…). use apical bullectomy, mechanical pleurodesis, pleurectomy
What is important indicator in pleural effusion?pleural protein/ serum protein (if >0.5: exudative effusion) LDH pleural/ LDH serum (if >0.6 : exudative effusion)
How is mediastinal lymph node biopsies using VATS?Anterior mediastinum reach periaortic lymph nodes through 2nd intercostal space, mediastinal lymph nodes reach by midaxillary incision
What are indications of Lobectomy VATS?• Clinical stage I lung cancer. • Tumor size < 5 cm. • Benign disease (e.g., giant bulla, bronchiectasis). • Physiologic operability
What are CI for VATS lobectomy?• Chest wall or mediastinal invasion (T3 or T4 tumor). • Endobronchial tumor seen at bronchoscopy. • Positive mediastinoscopy. • Neoadjuvant chemotherapy. • Neoadjuvant radiation therapy.
What are things to be aware of in thoracic sympathectomy?- Horner’s syndrome (ptosis, myosis, enophtalmy, and palpebral anhydrosis), - Reactive hyperhydrosis of the lower body, - Dry skin of the upper body
What are main mediastinal considerations in mediastinoscopy?Ant; lymphoma and gioter, middle lymphoma
What are indications for mediastinoscopy?• Staging of lung cancer: - suspicion of N3 (contra-indication to resection), - search for N2 (induction chemotherapy before resection), - suspicion of small cell lung carcinoma(contra-indication for surgery). • Typing of tumors: - lung cancer: if bronchoscopy is non contributive, - mediastinal tumors: histological typing (lymphoma, thyroid goiter or neoplasm, etc). • Diagnosis of inflammatory diseases: sarcoidosis (biopsy of mediastinal lymph nodes)
What are complications of mediastinoscopy?• Hemorrhage (innominate vein or aorta). • Tracheal or bronchial lacerations. • Esophageal lacerations. • Recurrent nerve lesion (sectioned or electrocoagulated). • Pneumothorax. • Skin infection