Inserción velamentosa de cordón umbilical y rotura de un vaso previo con evolución neonatal favorable

Vasa previa is an unusual anatomical variant. Rupture of a vasa previa is associated with a high rate of fetal mortality oscillating between 58% and 100% of cases. We report a recent case of fetal exsanguination that occurred in our hospital due to vasa previa laceration of an undiagnosed velamentous umbilical cord insertion. Although neonatal outcome was favorable, we stress the need for early diagnosis and cesarian section to avoid this dramatic event.