• Ian C Glenn, Sophia Abdulhai, Pamela A Lally, Avraham Schlager, and Congenital Diaphragmatic Hernia Study Group.
• Akron Children's Hospital, Department of Surgery, Akron, OH.
• J. Pediatr. Surg. 2019 Oct 1; 54 (10): 2038-2043.

Purpose"Early on-ECMO" repair of CDH entails repair within 48-72 h of cannulation in an effort to optimize pulmonary physiology, shorten ECMO duration, and, ultimately, improve survival. This study evaluated the effect of early on-ECMO repair as compared to leaving patients unrepaired during ECMO.MethodsThe CDH Study Group database was queried for CDH patients requiring ECMO who either underwent repair within the first 72 h after cannulation or remained unrepaired on ECMO. Primary outcomes were survival to decannulation and ECMO duration.ResultsA total of 248 patients underwent early repair and 922 remained unrepaired on ECMO. The early repair group had increased risk factors for poor outcomes, including higher odds of cardiac defects and thoracic liver location, and lower odds of hernia sac presence. Nonetheless, ECMO survival for the early repair group was 87.1% compared to 78.4% in the unrepaired group (p = 0.002). However, the early repair group had a longer median ECMO duration than the unrepaired group (240.6 vs 196.8 h, p = 0.001).ConclusionWhile early ECMO repair does not shorten ECMO duration, it results in increased survival to decannulation as compared to those unrepaired on ECMO. This suggests that there may be a physiologic benefit leading to increased ECMO survival in a subset of patients undergoing on-ECMO repair over those designated to undergo post-ECMO repair.Level Of EvidenceLevel III.Copyright © 2019 Elsevier Inc. All rights reserved.

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