• Takahiro Karasaki, Shizuya Shintomi, Yukihiro Nomura, Nobutaka Tanaka, Haruhisa Saito, and Yukihiro Yoshida.
• Department of Thoracic Surgery, The University of Tokyo Hospital, Tokyo, Japan.
• Thorac Cardiovasc Surg. 2014 Sep 1;62(6):516-20.

BackgroundThere is no consensus regarding the initial intervention for primary spontaneous pneumothorax. We report the outcomes of outpatient treatment for primary spontaneous pneumothorax using a portable thoracic drainage device.Patients And MethodsBetween April 2007 and December 2011, 99 consecutive patients with a first episode of primary spontaneous pneumothorax were indicated for insertion of a portable thoracic drainage device. All patients were treated with a small-bore portable thoracic drainage device that consists of a flexible 9F silicone catheter with one-way valves and a small plastic chamber. Successful treatment was defined as when the pneumothorax was resolved after the insertion of a portable thoracic drainage device solely on an outpatient basis. Demographic data and treatment outcomes were obtained by a retrospective chart review.ResultsNinety-seven patients (98%) with a first primary spontaneous pneumothorax were discharged from the emergency department after insertion of a portable thoracic drainage device. Ninety-three patients (94%) resolved with outpatient treatment. The median duration of portable thoracic drainage device insertion was 4 days (range, 0-33 days). The recurrence rate after treatment with a portable thoracic drainage device was 34% (32/93). There were two infections (2.0%), two instances of hemothoraces (2.0%), and one severe discomfort at the insertion site (1.0%). There were no cases of tension pneumothorax or reexpansion edema.ConclusionOutpatient treatment for primary spontaneous pneumothorax using a portable thoracic drainage device had a high success rate with few serious complications and an acceptable recurrence rate.Georg Thieme Verlag KG Stuttgart · New York.

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