Methods 5 cases of vasa previa in velamentous insertion of umbilical cord were analyzed retrospectively.
方法对5例脐带帆状附着前置血管进行回顾性分析。
2
Objective: to study the diagnosis and management of the rupture of previa blood vessel of velamentous insertion of umbilical cord.
目的：探讨脐带帆状附着前置血管破裂的诊断及处理。
3
The main causes of the death of one fetus in twin pregnancy were cord elements(5 cases), fetal deformity(3 cases), velamentous insertion(4 cases)and unknown etiology(15 cases).