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Case Reports in Obstetrics and Gynecology
Volume 2012, Article ID 308206, 4 pages
http://dx.doi.org/10.1155/2012/308206
Case Report

Velamentous Cord Insertion in a Singleton Pregnancy: An Obscure Cause of Emergency Cesarean—A Case Report

Department of Gynecology and Obstretics, Tâmega e Sousa Hospital, Lugar do Tapadinho, Guilhufe, 4564-007 Penafiel, Portugal

Received 31 August 2012; Accepted 15 October 2012

Academic Editors: E. Cosmi and E. F. C. Murta

Copyright © 2012 Juliana Rocha et al. 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.

Abstract

Approximately 2% of low-risk pregnant women still require an emergency Cesarean section after the onset of labor. Because it is likely that half of these cases are associated with placental and umbilical cord abnormalities, it is thought that prenatal detection of such abnormalities would reduce the number of emergency cesarean sections in low-risk women. Velamentous cord insertion is an abnormal cord insertion in which the umbilical vessels diverge as they traverse between the amnion and chorion before reaching the placenta. With a reported incidence of 1% in singleton pregnancies, it has been associated with several obstetric complications. This condition has been diagnosed by ultrasonography with a sensitivity of 67% and specificity of 100% in the second trimester. The present case highlights the importance of the systematic assessment of the placental cord insertion site at routine obstetric ultrasound and the potential of identifying pregnancies with velamentous insertion and, therefore, those at risk for obstetric complications.