• Courtney Fulton and Ioana Bratu.
• The Division of Pediatric General Surgery, Department of Surgery, University of Alberta, Edmonton, Alta.
• Can J Surg. 2015 Jun 1;58(3):177-80.

BackgroundCurrently there is no clinical consensus on how to treat occult pneumothoraces in adults, and even less research has been done in children. We sought to understand the outcomes of severely injured, ventilated children with occult pneumothoraces.MethodsUsing the Alberta Trauma Registry, we retrospectively reviewed the charts of all ventilated pediatric patients at a children's hospital from 2001 to 2011 who had an injury severity score greater than 12 and a diagnosis of occult pneumothorax (seen on computed tomography scan but not on supine chest radiograph).ResultsThere were 1689 severely injured children, with 496 admitted to the pediatric intensive care unit (PICU) and ventilated. A total of 130 children were found to have pneumothoraces, and of those, 96 were admitted to the PICU. Of those, 15 children had a total of 19 occult pneumothoraces, and all were successfully treated without chest tubes. The average age was 13.4 (range 2.0-17.0) years, and 54% of these children were male. The average time spent on the ventilator was 2.3 (range 0-13) days, and 7 children had at least 1 operation.ConclusionIn our institution, occult pneumothoraces occur in very few severely injured, ventilated pediatric trauma patients. Our study adds to the increasing evidence in the adult and pediatric literature suggesting that occult pneumothoraces may be safely observed even while under positive-pressure ventilation.

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