Isolated abdominal circumference vs. estimated fetal weight, which matters more?

Fetal growth restriction (FGR) is a leading cause of neonatal morbidity and mortality. In 2020, the Society Maternal Medicine American College Obstetricians Gynecologists redefined fetal from estimated weight (EFW) less than 10th percentile to EFW or abdominal circumference (AC) percentile. our study, we seek assess rate abnormal umbilical artery Doppler velocimetry in fetuses with FGR diagnosed by isolated AC versus those This retrospective case control study included all singleton non anomalous pregnancies between October 2019 December 2021. Patients were divided based on criteria at time initial diagnosis FGR. The group (iAC group) patients due greater. (EFW regardless primary outcome velocimetry; defined as pulsatility index greater 95th percentile, absent reversed end-diastolic velocity. During timeframe 733 There 248 iAC 485 group. had 10.5% (26/248) compared 19.8% (96/485) (p < 0.001). number needed treat (NNT) for antenatal testing detect 1 doppler 10.3.The average gestational age was 33.6 weeks 31.3 0.001) first Further studies this new subset are needed.