Table of Contents
ISRN Obstetrics and Gynecology
Volume 2013 (2013), Article ID 369419, 3 pages
Clinical Study

Case Series of Monoamniotic and Pseudomonoamniotic Twin Gestations

Department of Obstetrics and Gynecology, Japanese Red Cross Katsushika Maternity Hospital, 5-11-12 Tateishi, Katsushika-ku, Tokyo 124-0012, Japan

Received 20 December 2012; Accepted 23 January 2013

Academic Editors: E. Ginsburg and H. Rehder

Copyright © 2013 Shunji Suzuki. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We retrospectively evaluated a series of 18 monoamniotic and 7 pseudomonoamniotic (secondary to rupture in the membrane dividing monochorionic diamniotic twins) twin gestations managed after 20 weeks’ gestation. There were no significant differences in the incidence of neonatal death or umbilical cord entanglement between the monoamniotic and pseudomonoamniotic twin gestations (33 versus 21%, and 72 versus 43%, ). Therefore, the same serious management may be needed for pseudomonoamniotic twin gestations as for monoamniotic twin gestations.