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妊中期唐氏综合征筛查660例结果分析

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摘要 目的了解利用孕中期母血中AFP和β-hCG浓度进行唐氏综合征筛查的有效性,建立本实验室的中位数参考值。方法用ELISA法检测孕母血清中的AFP和β-hCG,输入计算机筛查软件计算胎儿唐氏综合征的风险值,风险值大于或等于275判为高危妊娠。结果660例孕妇唐氏综合征和神经管缺陷的阳性率分别为7.3%和4.5%,确诊染色体异常1例。结论正常孕中期孕母血中的AFP、β-hCG与孕周分别呈正相关和负相关关系;产前筛查可减少产前诊断的盲目性,并可发现除唐氏综合征外的染色体异常。
作者 谭丽娟
出处 《医学文选》 2006年第4期653-654,共2页 Anthology of Medicine
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