Background: Surgery is often required in cases of spontaneous pneumothorax. This situation can pose considerable difficulty with correct preoperative estimate of pulmonary function. Simple indications for surgery are mandatory, especially in aged patients.

Methods: To examine the indications and safety of surgery in patients over 50 years, 23 operations in 22 patients over a 6-year period from 1998 to 2003 were reviewed retrospectively. All 23 cases had a grade 2 or better performance status. In all cases, operations were performed with bullectomy or pneumonorrhaphy by a limited thoracotomy with videothoracoscopy in 5 cases.

Results: All patients recovered to the same performance status as before the onset of the pneumothoraces, with the exception of one who died, and changes between pre- and postoperative arterial oxygen or carbon dioxide tension were not significant. Lung-related postoperative complications, including 1 mortality (4%), occurred in three cases who required emergency operation because of massive air leaks with incomplete lung reexpansion, obvious mediastinal emphysema or severe subcutaneous emphysema.

Conclusions: Surgical interventions may be safely performed when the patient's performance status is grade 2 or better, but care must be taken to avoid postoperative complications in preoperative conditions as massive air leaks with incomplete lung reexpansion, obvious mediastinal emphysema or severe subcutaneous emphysema.

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