Abstract
Background: Doppler velocimetry of fetal arterial blood flow in pregnancy induced hypertension (PIH) determines fetal hemodynamic adjustment. Objective: This study was aimed to determine the pattern of fetal arterial blood flow of selected vessels in patients with PIH. Materials and Methods: A total of 34 pregnant women with PIH at a gestational age of 24-37 weeks were prospectively examined with Doppler ultrasound of the fetal middle cerebral artery (MCA), umbilical artery and placental blood flow (uterine artery). Results: The mean peak systolic velocity (PSV) of the fetal MCA was 8.23±3.96, resistance index (RI) was 0.763±0.07 and systolic diastolic (S/D) ratio was 4.558±1.36. The mean PSV of umbilical artery was 72.28±26.585, RI was 0.62±0.19 and S/D was 2.63±0.75. The mean placental blood flow (uterine artery) PSV was 141.34±70.58, RI was 0.59 and S/D was 2.42±1.07. Uterine artery PSV was normal in only six patients. Uterine artery was also not sonographically demonstrated in two patients. Conclusion: Doppler velocimetry of arterial blood vessels in pregnancy complicated with PIH reveals abnormal pattern; its application in PIH would be useful for further management.
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