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Original ArticleOpen Access
Uterine Artery Resistance Index above 95 Percentile : Prevalence and Adverse Perinatal Outcome Prediction in Pregnancies Complicated by Hypertensive Disorders
Ruangvutilert P 
,
Sutantawibul A ,
Sunsaneevithayakul P ,
Boriboonhirunsarn D
,
Sutantawibul A ,
Sunsaneevithayakul P ,
Boriboonhirunsarn D Uterine artery resistance index (UARI) was determined in a cohort of pregnant women com-
plicated 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 ad verse 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.
Key word: Uterine Artery Resistance Index, Gestational Hypertension, Hypertensive Disorder, Doppler
Ultrasonography
plicated 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 ad verse 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.
Key word: Uterine Artery Resistance Index, Gestational Hypertension, Hypertensive Disorder, Doppler
Ultrasonography
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