Maternal history and uterine artery wave form in the prediction of early-onset and late-onset preeclampsia: A cohort study

摘要

Background:Pregnancy induced hypertension (PIH) is a significant cause of maternal morbidity and mortality. Pregnancy-induced-hypertension can be prevented by identification of prenatal and antenatal factors. The uterine artery Doppler waveform transforms into a high flow with low resistance at 22-24 wk.