AMPLE-3: IPC Plus Talc vs VATS in Management of Malignant Pleural Effusion

Video-assisted thoracoscopic surgery is a type of key-hole surgery performed under general anaesthetic and usually single lung ventilation by a cardio-thoracic surgeon. This is expected to take about 1 hour. Between one and three ports are used to insert a camera and instruments into the chest cavity. Adhesions can be broken down if present and the lining of the lung (visceral pleura) can sometimes be removed (decortication) to facilitate lung re-expansion. The surgeon can then perform either mechanical abrasion or talc poudrage to induce inflammation and subsequent pleurodesis. A chest drain is left in situ post-operatively and is removed when the fluid draining is below a certain volume depending on local practice.

Once the indwelling pleural catheter is inserted, the pleural fluid will be evacuated as completely as possible. If the lung fully re-expands, 4-5g of sterile graded talc will be instilled via the IPC. The participant will then be discharged on a daily drainage regimen for 14 days. At review in clinic on day 14, the participant will be assessed for spontaneous pleurodesis (\<50ml drainage on 3 consecutive drainage attempts). If pleurodesis has occurred and there is no residual symptomatic effusion, arrangements will be made for IPC removal. Otherwise the participant will switch to a symptom-guided drainage regimen. If the lung does not fully re-expand following complete fluid evacuation, they will be discharged on a symptom-guided regimen without instillation of talc. The drainage regimen will continue for the duration of the study and beyond if pleurodesis has not occurred and pleural fluid continues to accumulate.