Clinical features of velamentous umbilical cord insertion and vasa previa

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Velamentous insertion of umbilical cord with vasa praevia: case series and literature review

A velamentous umbilical cord is characterized by membranous umbilical vessels at the placental insertion site that are prone to compression and rupture, especially when they are located in the membranes covering the cervical os (vasa praevia). The velamentous insertion of the umbilical cord, with a reported incidence of 1% in singleton pregnancies and 15% in monochorionic twin gestations, has b...

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Velamentous insertion of the umbilical cord vessels with vasa praevia--a case report.

Among the abnormal cord insertion pathology, velamentous cord insertion associated with rupture of vasa praevia is the most severe condition related to the outcome of the newborn. In velamentous cord insertion, the fetal vessels run freely through the fetal membranes without protection from Wharton's jelly, umbilical vessels diverging as they traverse the membranes. When the membranes are ruptu...

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Clinical Significance of Pregnancies Complicated by Velamentous Umbilical Cord Insertion Associated With Other Umbilical Cord/Placental Abnormalities

BACKGROUND We examined the clinical significance of pregnancies complicated by velamentous cord insertion (VCI) associated with other umbilical cord/placental abnormalities. METHODS Data were collected from 168 deliveries complicated by VCI and from 16,797 unaffected controls. All placentae were screened identically by trained staff. In this study, we examined the presence of excessively long...

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Unruptured vasa previa with anomalous umbilical cord formation: a case of postpartum physician tachycardia.

Case A 22-year-old (gravida 3, para 1, aborta 1) woman was admitted to hospital at 39 weeks and 5 days of gestation with contractions and light blood show (ie, minor bleeding with mucus that is associated with cervical dilation). Shortly after arrival, her membranes ruptured spontaneously for a moderate amount of clear amniotic fluid. Vaginal examination revealed cervical dilation of 5 to 6 cm,...

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Velamentous cord insertion - an important obstetrical risk factor

A velamentous insertion of the umbilical cord is characterized by the atypical aspect of the placental end of the cord, consisting in divergent umbilical vessels surrounded by fetal membranes and with no Wharton’s jelly present, resulting a cord that is inserted rather into membranes than the placental disk. By the divergence of the umbilical vessels as they travers the amnion and the chorion b...

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ژورنال

عنوان ژورنال: Medicine

سال: 2020

ISSN: 0025-7974,1536-5964

DOI: 10.1097/md.0000000000023166