Contemporary Role of Computed Tomography in Managing Pediatric Primary Spontaneous Pneumothorax.

Abstract

The value of chest computed tomography (CT) in pediatric primary spontaneous pneumothorax (PSP) remains controversial. This study sought to evaluate the utility of CT scans in a contemporary cohort of children with PSP. An institutional review board approval was obtained for a retrospective review of all children (aged ≤18y) who underwent video-assisted thoracoscopic surgery (VATS) for PSP between 2009 and 2019 at a university-affiliated pediatric hospital. Preoperative CT scans were evaluated for diagnostic accuracy of the CT of bleb disease. Thirty nine patients underwent VATS procedures for PSP, 34 (87%) of the patients were noted to have blebs. Twenty eight (72%) patients received preoperative CT scans with a 5.5:1 male to female ratio. On CT, 17 (61%) were diagnosed with blebs and all had blebs intraoperatively. CT did not identify disease in 11 patients, but seven had blebs intraoperatively. The positive and negative predictive values of preoperative CT for detecting ipsilateral bleb disease were 100% and 36%, respectively, with a sensitivity of 71%. Eleven patients had a contralateral disease on CT (39%). Five received elective contralateral VATS and three developed spontaneous PSP, with intraoperative blebs in all eight patients. Three never developed contralateral PSP. Six (21%) patients with no contralateral disease on CT developed spontaneous PSP with intraoperative blebs. The decision to operate for PSP should be made based on clinical findings rather than on the presence or absence of blebs identified by CT.