AJOG:无创产前检查把羊水穿刺逼进“冷宫”

2015-04-20 Mechront 译 MedSci原创

无创产前检查(NIPT)现在成了产前筛查领域的新宠,全国范围内掀起一股如火如荼的局势,逼得产前诊断试验(绒毛取样CVS、羊水穿刺)只能进“冷宫”、坐冷板凳,临床运用大幅度下降。但是对这些钟爱NIPT而忽略诊断试验的孕妇在基因诊断方面还有着未知、潜在影响。本研究目的在于探究NIPT对遗传咨询和诊断试验的影响。研究者对过去进行遗传咨询和诊断试验的孕妇进行回顾性队列研究。时间设定为2组,一组为NIPT引

无创产前检查(NIPT)现在成了产前筛查领域的新宠,全国范围内掀起一股如火如荼的局势,逼得产前诊断试验(绒毛取样CVS、羊水穿刺)只能进“冷宫”、坐冷板凳,临床运用大幅度下降。但是对这些钟爱NIPT而忽略诊断试验的孕妇在基因诊断方面还有着未知、潜在影响。本研究目的在于探究NIPT对遗传咨询和诊断试验的影响。

研究者对过去进行遗传咨询和诊断试验的孕妇进行回顾性队列研究。时间设定为2组,一组为NIPT引入前(Pre-NIPT)2年,一组为NIPT引入后(Post-NIPT)2年。对Pre-NIPT和Post-NIPT两组间进行遗传咨询和诊断试验的人数差异,以及不推荐行NIPT的人数差异进行统计学分析。

研究结果显示,Post-NIPT组和Pre-NIPT组进行遗传咨询和诊断试验人数显著不同,分别为2824 vs. 3944, p=0.001,NIPT引入后人数下降了28.4%。Post-NIPT时期,不推荐行NIPT的人数明显减少(467 pre NIPT vs. 285 post NIPT, p=0.043),即推荐行NIPT的人数增加。研究期间行了CVS诊断试验,识别了32.4%的非整倍体染色体畸形,但是这些是不能被NIPT检测出来的。

研究结果表明,自从开创NIPT后,进行遗传咨询和诊断试验人数明显减少。对进行遗传咨询和产前测试的病人,推荐行NIPT的人数在增加。这意味着将会有更多的人行NIPT筛查而不是诊断试验,包括不能被NIPT检测出来的胎儿有单基因疾病和非整倍体染色体畸形,这将会是潜在导致流产的风险。

原始出处:

Williams J, 3rd, Rad S, Beauchamp S, Ratousi D, Subramaniam V, Farivar S, Pisarska MD: Utilization of noninvasive prenatal testing: Impact on referrals for diagnostic testing. American journal of obstetrics and gynecology 2015.

本文系Medsci原创编译整理!转载需要先获得授权,并附原文链接。谢谢!

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    2015-09-07 陈吴1243
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    2015-04-22 rgjl
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    2015-04-22 qilu_qi