反复妊娠21三体综合征胎儿的相关研究

Recurrence risk of trisomy 21

随着产前诊断技术的发展,国内陆续有了连续妊娠21三体综合征胎儿的病例报道,但国内相关总结性研究很少,为更好地进行遗传咨询,本文就国外不同地区人群反复妊娠21三体综合征的发生率,可能的形成原因,其它相关问题进行了综述。

With the development of prenatal diagnosis, there are some case reports of trisomy 21 recurrence in our country recently, but the related research based on large population was rare.For better genetic counseling for these patients, this article summarized the risk, the reasons and other fators about trisomy 21 recurrence.