440 Determining the survival rates of very preterm infants with absent or reversed end diastolic flow

To determine the survival rates of infants diagnosed with abnormal umbilical artery doppler and delivered prior to 28+6 weeks gestation This was a retrospective review of singleton pregnancies with absent end diastolic flow (AEDF) or reversed end diastolic flow (REDF) on umbilical artery dopplers (UAD), which was diagnosed between 24+0 and 28+6 weeks gestation, from January 2016 through July 2020 in a large Irish tertiary center. Data was...