Increased uterine artery pulsatility index at 34 weeks and outcome of pregnancy

Maroni, E.; Youssef, A.; Arcangeli, T.; Nanni, M.; Musso, Fabio; Contro, E.; Kuleva, M.; Bellussi, Federica; Pilu, Gianluigi; Rizzo, Nicola; Ghi, T.

doi:10.1002/uog.8966

Cited by 18 publications

(25 citation statements)

References 25 publications

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“…Maroni et al evaluated pregnancy outcome in patients with increased uterine artery PI at 34 weeks' gestation and reported higher chance of delivering SGA babies, but the risk of other complications was not increased [32]. They suggested reassessment of uterine artery Doppler at 26 to 28 weeks in those with increased resistance in the second trimester of pregnancy as we also concluded.…”

Section: Discussionsupporting

confidence: 55%

Multicenter screening for adverse pregnancy outcomes by uterine artery Doppler in the second and third trimester of pregnancy

Jamal¹

2013

Med Ultrason

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Aims: Increased uterine artery pulsatility index (PI) is associated with adverse pregnancy outcomes. The aim of the study was to determine the role of uterine artery PI at 18-24 and 30-34 weeks, gestation in predicting adverse pregnancy outcomes. Material and methods: Color Doppler assessment of the uterine arteries was carried out in 435 consecutive women attending an antenatal clinic at 18-24 weeks and in 134 women at 30-34 weeks. The 95th percentiles of the mean uterine PI and the presence or the absence of bilateral notches was recorded. Using the reference range, performance characteristics in the prediction of pregnancy outcomes were calculated. Association of mean PI at 30-34 weeks with pregnancy outcomes also was studied. The adverse pregnancy outcomes were defined as any or the combination of pre-eclampsia, fetal growth restriction, intrauterine fetal death, preterm delivery and placental abruption. Results: The women with adverse pregnancy outcomes had significant higher mean PI (1.27±0.55 vs. 0.99±0.32; p=0.003) and higher prevalence of bilateral notch (20% vs. 4.6%, p=0.001) than those with normal outcomes. The mean (±SD) PI in women with severe adverse outcome was 1.66±0.66 vs. 1.0±0.32 in women with normal pregnancy outcome (p=0.002). For a screen positive rate of 10.6% (mean PI>95th percentile for gestational age and/or bilateral notches), the sensitivity for predicting an adverse outcome was 33.3%. The sensitivity increased to 60% for predicting a severe adverse outcome. Increased resistance in the third trimester was also associated with an adverse pregnancy outcome Conclusion: Increased uterine artery PI in second and third trimester of pregnancy is associated with an increased risk of adverse pregnancy outcomes.

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Section: Discussionsupporting

confidence: 55%

Multicenter screening for adverse pregnancy outcomes by uterine artery Doppler in the second and third trimester of pregnancy

Jamal¹

2013

Med Ultrason

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“…However, the UtA pulsatility has been shown to be persistently increased until the late-trimester in approximately 30% of the low-risk population, although its association with obstetric complications is unclear [8,10].…”

Section: Introductionmentioning

confidence: 98%

The predictive value of the uterine artery pulsatility index during the early third trimester for the occurrence of adverse pregnancy outcomes depending on the maternal obesity

Kim

Lee

Shin

et al. 2015

Obesity Research & Clinical Practice

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“…Essentially, Doppler studies were carried out in pregnancies presenting with PE or fetal growth restriction reported that the outcome was worse if there was increased, rather than normal, impedance to flow in the uterine arteries [16,17,18,19,20,21,22]. Similarly, studies investigating pregnancies with abnormal uterine artery Doppler at 20-24 weeks' gestation reported that outcome was worse in those with persistence of high impedance to flow during the third trimester compared to those with normalization in flow [23,24,25]. …”

Section: Introductionmentioning

confidence: 99%

Uterine Artery Doppler at 30-33 Weeks' Gestation in the Prediction of Preeclampsia

Lai¹,

Poon²,

Pinas³

et al. 2013

Fetal Diagn Ther

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Objective: To investigate the potential value of measuring uterine artery pulsatility index (PI) at 30-33 weeks' gestation in the prediction of preeclampsia (PE) developing at or after 34 weeks. Methods: Screening study in singleton pregnancies at 30-33 weeks' gestation including 4,294 cases that were unaffected by PE, gestational hypertension (GH) or delivery of small for gestational age neonates (normal group), 145 that subsequently developed PE, with 37 cases requiring delivery at 34-37 weeks (intermediate-PE) and 108 delivering at or after 38 weeks (late-PE) and 161 that developed GH. The a priori risks for intermediate- and late-PE from maternal demographic characteristics and medical history were derived by logistic regression analysis. The a posteriori risks were calculated by combining the a priori risks with the likelihood ratios for uterine artery PI, which were calculated from fitted bivariate gaussian distributions. Results: In screening for PE by a combination of maternal characteristics and uterine artery PI, the estimated detection rates of intermediate- and late-PE, at a false-positive rate of 10%, were 70.3 and 54.6%, respectively. Conclusion: Combined testing by maternal characteristics and uterine artery PI at 30-33 weeks could effectively identify women at high risk for subsequent development of PE.

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Increased uterine artery pulsatility index at 34 weeks and outcome of pregnancy

Abstract: Objectives To evaluate pregnancy outcome in patients with increased uterine artery (UtA) pulsatility at 34 weeks' gestation as an isolated finding. Methods

Cited by 18 publications

References 25 publications

Multicenter screening for adverse pregnancy outcomes by uterine artery Doppler in the second and third trimester of pregnancy

Multicenter screening for adverse pregnancy outcomes by uterine artery Doppler in the second and third trimester of pregnancy

The predictive value of the uterine artery pulsatility index during the early third trimester for the occurrence of adverse pregnancy outcomes depending on the maternal obesity

Uterine Artery Doppler at 30-33 Weeks' Gestation in the Prediction of Preeclampsia

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