Diagnosis of Umbilical Cord Entanglement of Monoamniotic Twins by First‐Trimester Color Doppler Imaging

Monoamniotic twins occur in approximately 5% of monochorionic twin gestations as a result of splitting of the inner cell mass at 8 or more days after fertilization, and they are associated with high perinatal mortality rates, ranging between 28% and 47%. These gestations have unique pathologic condi...

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Bibliographic Details
Published in:Journal of ultrasound in medicine 2002-11, Vol.21 (11), p.1307-1309
Main Authors: Sherer, David M., Sokolovski, Margarita, Haratz-Rubinstein, Nathan
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Female
Fetal Death
Gynecology. Andrology. Obstetrics
Humans
Management. Prenatal diagnosis
Medical sciences
Pregnancy
Pregnancy Complications - diagnostic imaging
Pregnancy Trimester, First
Pregnancy, Multiple
Pregnancy. Fetus. Placenta
Twins
Ultrasonography, Doppler, Color
Ultrasonography, Prenatal
Umbilical Cord - diagnostic imaging
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Summary:Monoamniotic twins occur in approximately 5% of monochorionic twin gestations as a result of splitting of the inner cell mass at 8 or more days after fertilization, and they are associated with high perinatal mortality rates, ranging between 28% and 47%. These gestations have unique pathologic conditions, including conjoined twins, a high prevalence of discordancy for fetal structural anomalies (the former and possibly also the latter resulting from consequences of the twinning process), and cord entanglement. We present a case in which monoamniotic twins at first-trimester transvaginal sonography were confirmed by color Doppler imaging as having entangled umbilical cords.
ISSN:0278-4297
1550-9613
DOI:10.7863/jum.2002.21.11.1307