Are neonatal outcomes amongst fetuses with an abdominal circumference <3%ile and estimated fetal weight (EFW) 3rd-9th%ile comparable to fetuses with an EFW <3rd%ile?

Although AC <3%ile with EFW 3-9%ile is associated with a lower frequency of SGA and neonatal morbidity than EFW <3%ile, fetuses with AC <3%ile still exhibited moderate rates of these adverse perinatal outcomes. Consideration should be given to inclusion of an AC <3rd percentile with EFW 3rd-9th % as a criterion for sFGR. However, prospective studies comparing delivery at 37 versus 38-39 weeks' gestation are needed to ensure improved outcomes before widespread adaptation in clinical practice.