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

ABSTRACT

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