615: Impact of maternal and fetal characteristics on fetal acidosis in preterm infants

cases. The table demonstrates the tracing parameters and readings for cases and controls. CONCLUSION: Review of the last hour of electronic fetal monitoring prior to delivery by 3 maternal-fetal medicine specialists using the 2008 NICHD guidelines was unable to distinguish neonates begun on hypothermia within 6 hours of birth. In this population with a high incidence of nonreassuring fetal heart rate tracings for both cases and controls only a significant decrease in early decelerations in the cases were found.