Predictors of necrotizing enterocolitis in preterm growth-restricted neonates

American Journal of Obstetrics and Gynecology
Anita C ManoguraA A Baschat

Abstract

The purpose of this study was to test the hypothesis that multivessel fetal Doppler imaging provides enhanced prediction of necrotizing enterocolitis (NEC) in preterm placental insufficiency. Placental-based growth-restricted fetuses (abdominal circumference <5%, abnormal umbilical artery [UA] Doppler imaging) were examined. UA, middle cerebral artery, ductus venosus, and umbilical vein (UV) were evaluated prenatally and were assessed for their ability to predict NEC in neonates who were delivered at <37 weeks of gestation. Thirty-nine of 404 neonates (9.7%) experienced NEC. Among these, the mortality rate was 15.4% (6/39 neonates; odds ratio, 2.7; 95% CI, 1.03-7.11). NEC cases had higher UA Doppler indices prenatally (P = .023), lower gestational ages and birthweight at delivery (P < .0001, respectively), 5-minute Apgar scores of <7, and higher umbilical cord artery base deficit (P < .01, respectively). NEC was more likely after prenatal UV pulsations (odds ratio, 2.4; 95% CI, 1.13-5.14; P = .028) and severe cardiovascular abnormality (composite variable incorporating UA- absent or reversed end diastolic velocity, absent or reversed ductus venosus a-wave, or UV pulsations; odds ratio, 2.1; 95% CI, 1.06-4.05; P = .029) Logistic...Continue Reading

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