Doppler Ultrasound of the Fetal Descending Aorta: An Objective Tool to Assess Placental Blood Flow Resistance in Pregnancies With Discordant Umbilical Arteries.
Doppler ultrasound
descending aorta
discordant umbilical arteries
placenta
pulsatility index
Journal
Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
ISSN: 1550-9613
Titre abrégé: J Ultrasound Med
Pays: England
ID NLM: 8211547
Informations de publication
Date de publication:
Apr 2022
Apr 2022
Historique:
revised:
10
06
2021
received:
27
04
2021
accepted:
20
06
2021
pubmed:
7
7
2021
medline:
16
3
2022
entrez:
6
7
2021
Statut:
ppublish
Résumé
To determine the relationship between blood flow in the fetal descending aorta and discordant umbilical arteries (UAs). 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. 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). 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.
Identifiants
pubmed: 34228375
doi: 10.1002/jum.15773
pmc: PMC8733057
mid: NIHMS1762446
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
899-905Subventions
Organisme : NICHD NIH HHS
ID : U01 HD087177
Pays : United States
Organisme : Banting Research Foundation
Organisme : Eunice Kennedy Shriver National Institute of Child Health and Human Development
ID : 1U01HD087177-01
Informations de copyright
© 2021 American Institute of Ultrasound in Medicine.
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