Uterine artery resistance index above 95 percentile: prevalence and adverse perinatal outcome prediction in pregnancies complicated by hypertensive disorders.

ABSTRACT

Uterine artery resistance index (UARI) was determined in a cohort of pregnant women complicated by a hypertensive disorder. The prevalence of the value above 95 percentile (UARI95) and its prediction of adverse perinatal outcomes were evaluated. Fifty-eight women were included in the study. The prevalence of UARI95 in this group of women was 27.6 per cent. The correlations between mean UARI95 and adverse perinatal outcomes were 31.6 per cent sensitivity, 74.4 per cent specificity, with only 60.3 per cent accuracy. The mean UARI95 does not qualify as a reliable screening test for adverse perinatal outcomes in pregnancies complicated by hypertensive disorders.