title: Diagnosis of vasa previa with ultrasonography.
abstract: An antepartum diagnosis of vasa previa was considered in a patient in whom ultrasound revealed pulsatile loops of cord overlying the cervical os. This diagnosis was confirmed at the time of cesarean delivery. We offer a literature review of vasa previa and make recommendations for using ultrasonography to diagnose vasa previa.
mesh_terms: D000328:Adult; D002585:Cesarean Section; D005260:Female; D006801:Humans; D010920:Placenta / Q000098:blood supply*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014463:Ultrasonography; D014592:Uterine Hemorrhage / Q000209:etiology*