Interrelationship and clinical significance of increased resistance in the uterine arteries in patients with hypertension or preeclampsia or both

Ad, Kofinas; Penry, Mary; Simon, NV; Swain, Manorama

doi:10.1016/0020-7292(92)90952-f

Cited by 16 publications

(17 citation statements)

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“…The presence of the diastolic notch in the uterine artery waveform is considered a sign of increased vascular peripheral tone, and it has been proposed as a predictor of PIH and IUGR [4,11]. In our series, the addition of this sign improved the sensitivity of each measurement (placental, non-placental and mean of the two arteries).…”

Section: Discussionmentioning

confidence: 71%

“…°U k tCOme *Γ It has been previously demonstrated that, in pa-cental one perfuses mainly non-placental myometients with laterally implanted placentas, the pla-trium > and ma Y show increased peripheral resistcental uterine artery shows significantly lower ances even in the absence of significant impairDoppler indices than the contralateral one. This ment of the uteroplacental perfusion [11]. has been attributed to the trophoblast-induced It has also been shown that in screening for PIH conversion of the spiral arterioles in the subpla-and IUGR at 19-24 weeks gestation, the placencental vessels [9], which creates a low resistance tal uterine artery showed better sensitivity and vascular bed.…”

Section: Discussionmentioning

confidence: 96%

“…However, Ko-FINAS et al demonstrated that in patients with laterally implanted placentas, the placental uterine artery shows FVWs reflecting decreased resistance as compared to the non-placental one [9]. Furthermore the placental uterine artery has been shown to correlate better with fetal outcome than the non-placental one when evaluated within 10 days before delivery [11]. In this study we compared the effectiveness of placental, non-placental, and mean (of the 2) uterine arteries Doppler velocimetry at 22-24 weeks gestation in the prediction of PIH and IUGR in patients with laterally implanted placentas.…”

Section: Introductionmentioning

confidence: 93%

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Uterine artery Doppler velocimetry in pregnant women with lateral placentas

Liberati¹,

Rotmensch²,

Zannolli³

et al. 1997

Jpme

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The aim of this study was to compare the efficacy of placental, non-placental, mean of both uterine arteries Doppler velocimetry at 22-24 weeks gestation in the prediction of pregnancy induced hypertension (PIH) and intrauterine growth retardation (IUGR). Flow velocity waveforms were obtained by means of color and pulsed Doppler in 481 patients with lateral placentas at 22-24 weeks gestation. Placental location was determined by real time ultrasonography. Comparisons were performed between controls and pregnancies complicated by PIH and IUGR. Sensitivities, false positive rates and positive predictive values for PIH and IUGR of resistance indices (RI) above the 90th percentile, and diastolic notches in placental, non-placental or both uterine arteries were calculated. A mean uterine artery RI > or = 0.66 (90th centile) had better sensitivity than the placental (26.8% vs 17.1% for IUGR and 41.7% vs 33.3% for PIH) and the non-placental uterine artery (26.8% vs 21.9% for IUGR and 41.7% vs 33.3% for PIH). The presence of a diastolic notch in the placental uterine artery increased sensitivity (31.7% for IUGR and 50.0% for PIH) and positive predictive value of the test. In patients with laterally implanted placentas a mean of both uterine arteries RI above the 90th centile and the presence of a diastolic notch in the placental uterine artery at 22-24 weeks have a higher predictive value for the subsequent development of PIH and IUGR than the separate evaluation of the 2 uterine arteries.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 93%

See 1 more Smart Citation

Uterine artery Doppler velocimetry in pregnant women with lateral placentas

Liberati¹,

Rotmensch²,

Zannolli³

et al. 1997

Jpme

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show abstract

“…L'apparition d'une diastole nulle à l'analyse du Doppler ombilical pré cè de de quelques jours à quelques semaines l'apparition d'une pré -é clampsie, d'une hypertension et la mort foetale. La valeur pré dictive d'anomalies du flux Doppler des artè res uté rines au second trimestre reste controversé e. Plusieurs é tudes ont dé montré sa corré lation avec un risque é levé de dé velopper une pré -é clampsie et/ou un RCIU chez les patientes pré sentant une hypertension pré existante à la grossesse et même dans la population gé né rale [2,3]. À notre connaissance, une seule é tude a é valué la pertinence du Doppler des artè res uté rines au second trimestre sur une population mé langeant des patientes atteintes de SAPL (dé fini selon les anciens critè res de Wilson) et/ou de lupus é rythé mateux dissé miné (LED) [4].…”

Section: Introductionunclassified

Valeur prédictive du Doppler utérin et suivi des patientes avec syndrome des anti-phospholipides à haut risque obstétrical : l’expérience rouennaise

Séror

Verspyck

Borg

et al. 2010

Gynécologie Obstétrique & Fertilité

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“…Furthermore, studies performed on uteroplacental circulation by Doppler ultrasonography, have shown the importance of high uterine vascular resistance in the prediction of pregnancy-induced hypertension and intrauterine growth retardation [6]. A highly significant correlation between changes in the flow velocity waveforms of uteroplacental circulation, as assessed by Doppler sonography, and histological signs of low perfusion obtained by placental bed biopsies in high-risk pregnancies has also been demonstrated [7,9,10,12,3,15,17,20,21,23,24,27,28].…”

Section: Introductionmentioning

confidence: 99%