Definition and Surgical Technique
A bronchopleural fistula (BPF) is an abnormal connection between the bronchial tree and the pleural space, allowing continuous air leakage from the lung into the chest cavity, often accompanied by infection or empyema. The surgical repair of a BPF via video-assisted thoracoscopic surgery (VATS) involves identifying and closing the fistula through small chest incisions, using either direct suturing or tissue flap techniques depending on the size and location of the defect.

