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.
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Evidence-based Diagnosis and Treatment of Vasa Previa.
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Vasa previa is an abnormality of the umbilical cord and fetal membranes that affects ∼1 in 1300 pregnancies. The diagnosis is made by visualization of velamentous fetal vessels coursing within the membranes over the cervix unprotected by Wharton jelly or placenta. When it is not diagnosed prenatally, it is associated with a high risk of fetal death.
View Article and Find Full Text PDFVasa previa guidelines and their supporting evidence.
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January 2025
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- Vasa previa (VP) is a serious complication where fetal blood vessels are vulnerable near the cervix, requiring cesarean delivery before labor to avoid severe risks.
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Medway Fetal and Maternal Medicine Centre, Gillingham, UK; Institute of Medical Sciences, Canterbury Christ Church University, Kent, UK. Electronic address:
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