Necrotizing Enterocolitis and Associated Mortality in Neonates With Congenital Heart Disease: A Multi-Institutional Study.

Multi-institutional study of 38,770 neonates found 3.7% necrotizing enterocolitis prevalence in congenital heart disease patients, with highest rates in hypoplastic left heart syndrome and truncus arteriosus. NEC doubled mortality risk and significantly increased hospital costs and length of stay, with prematurity identified as a key risk factor.