Monoamniotic twin pregnancy

Acta geneticae medicae et gemellologiae
R H Lumme, S V Saarikoski

Abstract

The course and outcome of 23 monoamniotic (MA) twin pregnancies, delivered in Tampere University Central Hospital during the years 1964-1984, were studied retrospectively and compared to 1056 diamniotic (DA) twin pregnancies. The frequency of MA twins was 2.1% of twin pregnancies. Polyhydramnion complicated the pregnancy in 26% of MA vs 6% of DA pregnancies. Two cases were defined as acute polyhydramnion. Preterm labour was stated in 70% of MA pregnancies and deliveries before the 34th week were 4 times more common in MA than DA pregnancies. The cesarean section rate was more than double in MA pregnancies (39%). Entanglement of the umbilical cords was noted four times, and prolapse of the cord in three vaginally delivered cases. Perinatal mortality was 28% in MA vs 5% in DA twins. The most common causes of death were respiratory distress syndrome, congenital malformation and feto-fetal transfusion.

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Citations

Sep 1, 1991·Annals of Human Biology·W H James
Aug 21, 2001·BJOG : an International Journal of Obstetrics and Gynaecology·T GiannopoulosR Varma
Nov 8, 2002·Acta Obstetricia Et Gynecologica Scandinavica·Lin Lin Su
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Mar 1, 2005·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·D GallotD Lemery

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