Defining early vs late fetal growth restriction by placental pathology

Introduction Although early and late fetal growth restriction have been suggested to be distinct entities, the optimal gestational age cut‐off that differentiates the two conditions is currently unclear and has been arbitrarily set in previous studies between 32 and 37 weeks. We aimed to use placental pathology findings to determine that optimal gestational age cut‐off between early and late fetal growth restriction. Material and methods A retrospective cohort study of all women with singleton gestation who gave birth to a neonate diagnosed as small‐for‐gestational age (small‐for‐gestational age, defined as birthweight