Evaluation of placental vascularization by three-dimensional ultrasound examination in second and third trimester of pregnancies complicated by chronic hypertension, gestational hypertension or pre-eclampsia

Pregnancy Hypertension
Andrea SurányiGábor Németh

Abstract

The purpose of this study was to assess three-dimensional placental power Doppler indices in second and third trimester of pregnancies complicated by chronic-, gestational hypertension or pre-eclampsia. We analyzed 226 pregnancies prospectively measuring three-dimensional placental power Doppler indices (vascularization index, flow index, vascularization flow index) in cases of normal blood pressure (N=109), chronic hypertension (N=43), gestational hypertension (N=57) and pre-eclampsia (N=17). We evaluated the correlation among vascularization indices, flow characteristics of uterine arteries and perinatal outcome. We assessed the influence of maternal factors (pregestational body mass index, previous pregnancies/deliveries, maternal age) on vascularization indices, and analyzed histological findings of placenta from pregnancy hypertension groups. Vascularization index was significantly higher (p=0.010) in pregnancies with chronic- and lower (p=0.152) in pregnancies with gestational hypertension and preeclampsia compared to the normal group. Flow index was significantly lower in all three pathological groups compared to normal group. Placental volume was significantly smaller (p<0.001) in all three pathological groups than in n...Continue Reading

Citations

Jun 26, 2020·The Journal of Obstetrics and Gynaecology Research·Amr M ElhelalyAmr H Farag
Oct 28, 2019·The American Journal of Nursing·Marc-André Maheu-CadotteGuillaume Fontaine

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