Ante- and intrapartum diagnosis of vasa praevia in singleton pregnancies by colour coded Doppler sonography
Ante- and intrapartum diagnosis of vasa praevia in singleton pregnancies by colour coded Doppler sonography
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DOI：
10.1016/s0301-2115(98)00026-8
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发表时间：
1998-07-01
期刊：
影响因子：
--
通讯作者：
Gembruch, U
中科院分区：
文献类型：
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作者：
Baschat, AA;Gembruch, U
前置血管是一种罕见的妊娠并发症，与高胎儿发病率和死亡率有关。由于计划剖腹产可以避免胎儿的风险，早期发现前置血管是可取的。由于声波照射角度不利，仅通过经阴道超声检查，通过超声显示前置血管进行阴道诊断可能很困难。经腹及经阴道彩色多普勒超声联合应用在显示胎盘类型、位置、脐带附着点及前置血管方面具有上级优势。本文报告4例产前及1例产时经腹及经阴道彩色多普勒超声诊断的单胎前置血管。3例为脐带正常附着的二分胎盘，1例为脐带被膜附着。1例部分膜性胎盘伴脐带被膜附着。胎儿血管从脐带插入的部位开始，沿宫颈内口流动，然后在羊膜层中继续延伸到对侧子宫壁上的主要胎盘块。(C)1998爱思唯尔科学爱尔兰有限公司
Vasa praevia is a rare complication of pregnancy associated with a high fetal morbidity and mortality. As planned caesarean section can circumvent fetal risks, early detection of vasa praevia is desirable. Antenatal diagnosis by ultrasound by visualisation of vasa praevia may be difficult by transvaginal sonography alone due to an unfavourable angle of insonation. Combination of transabdominal and transvaginal sonography is superior in imaging the placental type, location, insertion of the cord and vasa praevia, We present four cases of antepartum and one case of intrapartum diagnosis of vasa praevia in singleton pregnancies using transabdominal and transvaginal colour coded Doppler sonography. A bipartite placenta with normal cord insertion was found in three cases and with velamentous insertion of the cord in one case. One case had a partially membranous placenta with velamentous insertion of the cord. From the site of cord insertion fetal vessels were coursing over the internal cervical os and then continued in an amniotic sheet to the main placental mass on the opposite uterine wall. (C) 1998 Elsevier Science Ireland Ltd.