Velamentous insertion of the umbilical cord of twin B as a cause of vasa previa in monochorionic diamniotic twins

Abstract

In the present case, the presence of vasa previa was demonstrated by digitally compressing the umbilical cord with consequent reflex bradycardia. This umbilical artery belonged to twin B, while the presenting part was the head of twin A.

Keywords

• Twins
• Vasa previa
• Velamentous insertion