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。
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。
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).
双胎之一胎儿死亡主要原因：脐带因素5例、胎儿畸形3例、帆状胎盘4例、原因不明15例。
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