胎儿肝外型永久性右脐静脉的产前超声诊断

Prenatal ultrasonographic diagnosis of fetal extrahepatic persistent right umbilical vein

目的探讨胎儿肝外型永久性右脐静脉(PRUV)的产前超声诊断及预后。方法分析我院超声科2009年1月～2011年7月检查发现的肝外型PRUV胎儿12例,总结其合并畸形情况及预后。结果肝外型PRUV胎儿检出率为0.02%(12/64243),所有12例肝外型PRUV胎儿均合并其他系统畸形,11例引产,1例胎死宫内。结论肝外型PRUV胎儿可以通过产前超声检查得以诊断。肝外型PRUV胎儿往往合并其他系统畸形,预后不良。

[ Objective ] To discuss the prenatal ultrasonographic diagnosis of fetal extrahepatic persistent right umbilical vein （PRUV）. [ Methods ] Twelve fetal extrahepatic PRUV cases from January 2009 to July 2011 were an- alyzed, and the additional malformations and prognosis were summarized. [ Results ] The incidence of extrahepatic PRUV was 0.02%（12/64243）. All the 12 fetuses had additional malformations, of which 11 fetuses were induced and 1 case died in uterus. [Conclusion] Ultrasonography can diagnose fetal extrahepatic PRUV. Fetal extrahepatic PRUV was often accompanied by additional malformations. Also, the prognosis is unfavourable.