Hypertensive disorders of pregnancy (HDP) are among the main public health issues worldwide. They account for an estimated 10-15% of maternal deaths globally. Among the hypertensive disorders of pregnancy, pre-eclampsia is most dangerous, occurring in 10% of first pregnancies, and in 20-25% of women with past history of hypertension. The objective of present study is to investigate the association of Doppler derived Indices of uterine artery resistance with composite of PIH/PET.Methods: A

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... ctive follow up observational study, including pregnant women at 11-13+6 weeks of gestation in whom Uterine Artery Resistance measured using Doppler ultrasound.Results: A total of 100 subjects were enrolled, out of which 11 developed pre-eclampsia/ gestational hypertension. All Doppler indices (Resistance Index, Pulsatility Index and Systolic/Diastolic Index) had high specificities and negative predictive values.Conclusions: The potential advantages of early screening of hypertensive disorders and their associated complications may allow investigations or prophylactic interventions before 20 weeks of gestation.