A case of vasa previa diagnosed prenatally, and review of the literature

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• 作者：Atsushi Komatsu (1)
  Shiro Kozuma (1)
  Shiro Yoshida (1)
  Hironobu Hyodo (1)
  Takahiro Yamashita (1)
  Yoshimasa Kamei (1)
  Tomoyuki Fujii (1)
  Yuji Taketani (1)
  
• 关键词：Vasa previa ; Lobed placenta ; Transvaginal ultrasound
• 刊名：Journal of Medical Ultrasonics
• 出版年：2011
• 出版时间：January 2011
• 年：2011
• 卷：38
• 期：1
• 页码：41-45
• 全文大小：877KB
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• 作者单位：Atsushi Komatsu (1)
  Shiro Kozuma (1)
  Shiro Yoshida (1)
  Hironobu Hyodo (1)
  Takahiro Yamashita (1)
  Yoshimasa Kamei (1)
  Tomoyuki Fujii (1)
  Yuji Taketani (1)
  
  1. Department of Obstetrics and Gynecology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, 113-8655, Japan
  

文摘

The perinatal mortality rate of vasa previa is high if it is not prenatally diagnosed. In this report, a case of vasa previa diagnosed prenatally is presented. Antepartum hemorrhage at 24?weeks of gestation prompted a close investigation of the uterine cervix, internal os, and placenta. We detected a low-lying bilobed placenta with umbilical cord insertion in the lower uterine segment. Furthermore, one of the connecting vessels of the bilobed placenta passed directly above the internal os. Vasa previa was suspected and confirmed with color Doppler and MRI. The fetus was delivered uneventfully by planned Cesarean section at 38?weeks of gestation. It should be considered that placenta previa (including low-lying placenta), bilobed placenta, and umbilical cord insertion in the lower uterine segment are associated with high risk of vasa previa. Ultrasound screening for cord insertion and placenta around the internal os enables efficient and certain detection of vasa previa.