[Treatment of pneumothorax].

Pneumothorax is defined as air in the pleural space, i.e. between the lung and the chest wall. Primary pneumothoraces (PSP) arise in otherwise healthy people without any lung disease. Secondary pneumothoraces (SSP) arise in subjects with underlying lung disease. Observation alone is recommended only in patients with small primary or secondary pneumothoraces of less than 1 cm depth or isolated apical pneumothoraces in asymptomatic patients. In symptomatic patients observation alone is inappropriate and active intervention is required. Although simple aspiration may be an option for first-line treatment in clinically stable patients with PSP, intercostal tube drainage is strongly recommended in all primary and secondary pneumothoraces requiring intervention. There are two objectives in the surgical management of pneumothorax. The first widely accepted objective is resection of blebs or the suture of apical perforations to treat the underlying defect. The second objective is to create a pleural symphysis to prevent recurrence. While video-assisted thoracic surgery may be the preferred surgical procedure for young, fit people with complicated or recurrent primary pneumothoraces, it is less reliable in cases of secondary pneumothorax. For the latter, open thoracotomy and repair is still the recommended approach.