Maternal obesity is not associated with increased crown-rump length in first-trimester ultrasounds of singleton gestations.
Geoffrey H GordonKathleen M AntonyEmmanuel SampeneJesus Igor IruretagoyenaPublished in: The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians (2018)
Maternal obesity does not significantly alter the fetal CRL. However, maternal obesity appears to be associated with increased fetal growth as early as the second trimester.