Abstract

Small bowel obstruction (SBO) is a known complication following congenital diaphragmatic hernia (CDH) repair, resulting in significant morbidity and potential mortality. Our study aims to evaluate the incidence and risk factors for SBO following CDH repair. A single-institution retrospective review evaluated all CDH births between January 2010 and September 2022 (n = 120). Risk factors for SBO were analyzed, including operative approach, type of repair, need for extracorporeal membrane oxygenation (ECMO), and additional abdominal surgeries (gastrostomy tube and fundoplication). 120 patients were included. 16 (13%) patients developed an SBO, of which 94% were due to adhesive bands. The median time to SBO was 7.5 months. 15/16 (94%) patients required operative intervention. Need for ECMO (P < 0.01), prior gastrostomy tube (P < 0.01), and prior fundoplication (P < 0.01) were associated with an increased risk of SBO, as were longer time to initial CDH repair (6 days vs 3days; P < 0.01) and longer length of initial hospitalization (63 days vs 29days; P = 0.01). Neonates with increased acuity of illness (ie, those requiring ECMO, additional abdominal operations, longer time to repair, and longer initial hospitalizations) appear to have an increased risk of developing adhesive SBO after CDH repair. More than 90% of patients who developed SBO required surgery.

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