학술논문
Congenital Malformations Associated With a Single Umbilical Artery in Twin Pregnancies.
Document Type
Journal Article
Author
Source
Subject
*CONGENITAL disorders
*UMBILICAL arteries
*TWIN studies
*FETAL distress
*EMBRYOLOGY
*PATHOLOGICAL physiology
*ANEUPLOIDY
*FETAL growth disorders
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Language
ISSN
1832-4274
Abstract
A single umbilical artery (SUA) was identified in 1.5% of twin pregnancies. The presence of a SUA in a twin pregnancy was associated with a 50% incidence of fetal anomalies, many of them complex and severe. The embryology and pathophysiological mechanisms associated with a SUA are reviewed. Aneuploidy is relatively common and should be considered, particularly in the presence of associated anomalies. Fetal growth restriction is frequent and preterm delivery is common. [ABSTRACT FROM PUBLISHER]