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Percutaneous catheter drainage is a standard therapy for management of selected intra-abdominal abscesses. We describe three patients in whom this technique caused complicated thoracic empyemas. All patients required thoracotomy for decortication despite initial thoracostomy tube drainage. In each case, the percutaneously placed drainage catheter was found traversing the costophrenic angle, leading to direct communication between the pleural space and the abscess cavity. Review of the anatomic relationships of the inferior pleural margin to the lower ribs may help prevent this technical error.

We report recent experience with a new device, the thoracic vent, in the management of simple pneumothorax. There were 16 patients aged 19 to 73 years who suffered pneumothorax due to spontaneous (4), traumatic (3), or iatrogenic (9) causes. Ease of insertion, patient tolerance, and the presence of a unique signal diaphragm all contributed to patient and physician acceptance of the device. Average time to pneumothorax resolution was 2.5 days, and time to thoracic vent removal averaged 3.2 days. There were no immediate recurrences or significant complications. We conclude that the thoracic vent is an effective device for initial and definitive therapy of simple pneumothorax. (Chest 1991; 100:880-82)