VIDEOTHORACOSCOPIC OPERATION FOR SECONDARY SPONTANEOUS PNEUMOTHORAX

Thoracotomy for the management of a secondary spontaneous pneumothorax is associated with a high perioperative risk related to the presence of underlying lung disease. Videothoracoscopy offers the potential therapeutic benefits of a minimally invasive approach. We report on a series of 22 patients (19 men and 3 women) with a mean age of 70 years (range, 46 to 92 years) who underwent videothoracoscopic surgical procedures for the treatment of secondary spontaneous pneumothorax. All patients had emphysema; their mean preoperative forced expiratory volume in 1 second was 48% of predicted and their mean forced vital capacity was 64% of predicted. Eighteen patients presented with a persistent air leak and their mean preoperative hospital stay was 18 days (range, 6 to 40 days). Pleurectomy was performed in all 22 patients, together with bullectomy in 20 patients, with a mean overall operating time of 57 minutes (range, 24 to 90 minutes). General anesthesia was used in each patient. Single-lung ventilation, used in the majority, was found to be superior to high-frequency jet ventilation. The postoperative analgesic requirement was minimal (average, 15 mg of morphine in the first 12 hours), and no patient required reventilation. A revisional thoracotomy for the management of a persistent postoperative air leak was required in 4 patients, one of whom subsequently died in respiratory failure. The mean postoperative stay was 9 days (range, 3 to 26 days). At a mean follow-up of 8.6 months (range, 2 to 15 months), no pneumothorax had recurred. In comparison with our experience using this technique to treat primary spontaneous pneumothorax in 33 patients, the operating time was not significantly longer, less postoperative analgesia was required, the durations of postoperative chest drainage and hospital stay were longer, and there were more primary treatment failures. Videothoracoscopic operation has proved to be an effective treatment for secondary spontaneous pneumothorax in elderly patients who represent high-risk candidates for thoracotomy, and thus it increases the surgical options for this condition.