Infant Essential Fatty Acid Status Is Not Associated With Postoperative Wound Complication Severity

Abstract

BackgroundNeonates are susceptible to postoperative wound complications (POWCs), as prematurity, hypoxia, steroid use, immunosuppression, and malnutrition are all common comorbidities. Critically ill infants, dependent on parenteral nutrition, are at even further risk of developing essential fatty acid deficiency (EFAD). We hypothesized that POWC severity and EFAD were associated because of increased susceptibility to infections and impaired wound healing seen with EFAD. MethodsInstitutional review board–approved (OUHSC10554), retrospective review from our academic Level IV Neonatal Intensive Care Unit. Infants aged <1 y who underwent a fascial-compromising gastrointestinal surgery from June 1, 2015, to March 15, 2019, and who had essential fatty acids (EFAs) measured ±2 wk from surgery were included. Three blinded investigators independently categorized POWC using the World Union of Wound Healing Society Surgical Wound Grading System. Infants were categorized into three groups: no POWC, POWC Grades 1 and 2 (superficial tissue nonintegrity), and POWC Grades 3 and 4 (deep tissue nonintegrity and complete dehiscence). EFA status and other possible POWC-associated factors were analyzed to determine any association with wound severity. ResultsFifty infants met the inclusion criteria. Half (25/50) had no POWC, 30% (15/50) had Grade 1 or 2, and 20% (10/50) had Grade 3 or 4. We found no association between EFAD and POWC severity. ConclusionsIn our cohort, EFA status did not predict POWC severity. At this time, we cannot suggest delaying elective surgical procedures to correct EFAD as an approach to preventing POWC.