Joanna J Kim, Katherine Bonhomme, Lawrence W Oppenheimer, Laura Gaudet
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引用次数: 0
摘要
当胎儿血管位于宫颈口上方时，就会发生前置胎盘。一种新的前置胎盘类型被称为 III 型，其特点是胎儿血管从胎盘异常分支，而没有绒毛状脐带插入（见于 I 型）或多叶胎盘（见于 II 型）。这里，我们介绍一例低置胎盘消退后的 III 型前置胎盘。如果存在任何已知的前置胎盘风险因素，包括低置胎盘，都应在妊娠三个月时进行前置胎盘筛查。准确、及时地诊断出前置胎盘将大大提高新生儿的存活率。
Type III Vasa Previa Associated with Resolution of a Low-Lying Placenta: Case Report and Literature Review.
Vasa previa occurs when fetal vessels lie above the cervical os. A novel type of vasa previa, known as type III, is characterized by an abnormal branching of fetal vessels from the placenta in the absence of velamentous cord insertion (as seen in type I) or multilobed placenta (as seen in type II). Here, we present a case of a type III vasa previa after a resolution of a low-lying placenta. The presence of any known risk factors of vasa previa, including low-lying placenta, should prompt screening for vasa previa in the third trimester. Accurate and timely diagnosis of vasa previa will confer significant survival benefit for the neonate.
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