Clinical Analysis of Eleven Cases of Spontaneous Umbilical Cord Vascular Rupture During Pregnancy

Background: Spontaneous umbilical cord vascular rupture is a rare but catastrophic event during pregnancy, and the perinatal mortality rate is extremely high. Live neonates may have severe asphyxia and require admission to the neonatal intensive care unit for many days. Methods: : A retrospective review of the clinical data of eleven patients with spontaneous umbilical cord vascular rupture from 2012 to 2020, was undertaken at our hospital. Results: : All patients were diagnosed by postpartum placental examination and pathological examination. The Obstetric Rapid Response Team performed emergency cesarean sections in fetal distress patients, and the time between detection of fetal heart abnormality and delivery was 5 to 13 minutes. Eight patients had bloodstained amniotic fluid and one had III° foul amniotic fluid. Six patients had the umbilical cord around their necks. Furthermore, pathological examination of postpartum placentas found four cases of intrauterine infection.Among the eight live neonates, one neonate died two days after birth due to severe complications and one had neonatal hyperbilirubinemia. No neurological sequelae, or other severe complications were found in the remaining seven neonates after three months of follow-up, and all of them had a positive prognosis. Conclusion: Spontaneous umbilical cord vascular rupture is a serious risk for perinatal birth life and obstetric complications. For this reason, obstetricians should be familiar with and pay attention to its risk factors.