Characterization of vitelline vessel remnant circulation in the umbilical cord.
Embryonic remnant
Umbilical circulations
Umbilical cord
Vitelline circulation
Vitelline vessels
Journal
Placenta
ISSN: 1532-3102
Titre abrégé: Placenta
Pays: Netherlands
ID NLM: 8006349
Informations de publication
Date de publication:
08 2021
08 2021
Historique:
received:
20
01
2021
revised:
14
04
2021
accepted:
15
06
2021
pubmed:
6
7
2021
medline:
3
2
2022
entrez:
5
7
2021
Statut:
ppublish
Résumé
The vitelline circulation normally regresses by about 10 weeks gestation. Vitelline vessel remnants (VVRs) are found in approximately 4-11% of umbilical cords. While these remnants retain an active fetal circulation, this has never been studied. Using an operating microscope, VVRs were catheterized, injected with ink, and then examined grossly and histologically. Over 90% of VVRs are paired thin-walled vessels with afferent and efferent circulation completed within the cord via capillary plexuses and bridging vessels; <10% are single thin-walled arterial vessels running the length of the cord to the placental disc, with their venous return circulation via allantoic umbilical vessels.
Identifiants
pubmed: 34225217
pii: S0143-4004(21)00182-X
doi: 10.1016/j.placenta.2021.06.009
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
97-104Informations de copyright
Copyright © 2021. Published by Elsevier Ltd.