Doppler Ultrasound of the Fetal Descending Aorta An Objective Tool to Assess Placental Blood Flow Resistance in Pregnancies with Discordant Umbilical Arteries

被引：4

作者：

Cahill, Lindsay S. ^{[1
]}

Mercer, Grace, V ^{[1
]}

Jagota, Dakshita ^{[1
]}

Chandran, Anjana Ravi ^{[2
]}

Milligan, Natasha ^{[3
]}

Shinar, Shiri ^{[2
]}

Whitehead, Clare L. ^{[4
]}

Hobson, Sebastian R. ^{[2
]}

Serghides, Lena ^{[5
,6
,7
,8
]}

Parks, W. Tony ^{[9
,10
]}

Macgowan, Christopher K. ^{[11
,12
]}

Kingdom, John C. ^{[2
,13
]}

Sled, John G. ^{[11
,12
,13
,14
]}

Baschat, Ahmet A. ^{[15
]}

机构：

[1] Mem Univ Newfoundland, Dept Chem, St John, NF A1B 3X7, Canada

[2] Mt Sinai Hosp, Toronto, ON, Canada

[3] Hosp Sick Children, Dept Paediat, Div Cardiol, Toronto, ON, Canada

[4] Royal Womens Hosp, Pregnancy Res Ctr, Dept Obstet & Gynaecol, Parkville, Vic, Australia

[5] Univ Hlth Network, Toronto Gen Hosp, Res Inst, Toronto, ON, Canada

[6] Univ Toronto, Dept Immunol Inst Med Sci, Toronto, ON, Canada

[7] Univ Toronto, Inst Med Sci, Toronto, ON, Canada

[8] Womens Coll Hosp, Womens Coll, Res Inst, Toronto, ON, Canada

[9] Mt Sinai Hosp, Dept Pathol, Toronto, ON, Canada

[10] Univ Toronto, Dept Lab Med & Pathobiol, Toronto, ON, Canada

[11] Hosp Sick Children, Translat Med, Toronto, ON, Canada

[12] Univ Toronto, Dept Med Biophys, Toronto, ON, Canada

[13] Univ Toronto, Dept Obstet & Gynecol, Toronto, ON, Canada

[14] Hosp Sick Children, Mouse Imaging Ctr, Toronto, ON, Canada

[15] Johns Hopkins Med, Ctr Fetal Therapy, Baltimore, MD USA

来源：

JOURNAL OF ULTRASOUND IN MEDICINE | 2022年 / 41卷 / 04期

关键词：

descending aorta; discordant umbilical arteries; Doppler ultrasound; placenta; pulsatility index; VELOCITY WAVE-FORMS; GROWTH RESTRICTION; REDISTRIBUTION; RETARDATION; CIRCULATION; DELIVERY;

D O I：

10.1002/jum.15773

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Objectives To determine the relationship between blood flow in the fetal descending aorta and discordant umbilical arteries (UAs). Methods Pulsed wave Doppler of both UAs and the descending aorta was performed at 4-weekly intervals between 14 and 40 weeks of gestation in 209 pregnant women. In datasets with discordant UAs, a linear mixed effects model was used to determine the categorical relationship between the UA pulsatility index (PI) (high, low and average) and the descending aorta PI. Results Of the 209 cases, 81 had a discordance of greater than 25% in UA PI during one of their visits. There were no differences in birth outcomes between the groups with concordant and discordant UA PIs. In the cases with discordant UA PIs, the descending aorta PI was most strongly associated with both the average UA PI (P = .008), and with the UA with the lower PI (P = .008). Conclusions The relationship between blood flow in the descending aorta and UAs is consistent with the law for combining resistances in parallel. Measurements of the descending aorta PI, particularly in a scenario with discordant UAs, may inform the stability of the feto-placental circulation where discordant UA PIs are found.

引用

页码：899 / 905

页数：7

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