消除第一季度组合测试:对早期发现重大胎儿异常的后果
M A Lugthart1,2, H Heinrich1,2, I Ertugrul1
1Department of Obstetrics and Gynecology, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands.
Prenatal diagnosis
|March 18, 2024
概括
实施无细胞DNA (cfDNA) 测试减少了对胎儿异常的早期检测. 一个专门的第一季度解剖扫描仍然对识别非染色体缺陷至关重要.
科学领域:
- 孕产妇和胎儿医学 孕产妇和胎儿医学
- 产前诊断 在产前诊断
- 胎儿异常检测检测器
背景情况:
- 第一季度综合检测 (FCT) 是一种标准的查方法.
- 无细胞DNA (cfDNA) 测试积症已被引入为一级测试.
- 用cfDNA取代FCT对早期检测特定胎儿异常的影响需要评估.
研究的目的:
- 评估cfDNA测试作为一级测试和停止FCT是否影响了特定胎儿异常的第一季度 (<14周) 检测率.
- 在实施cfDNA测试后评估非染色体异常的检测率.
主要方法:
- 从2011年到2020年,在两个胎儿医学部门进行了地理队列研究.
- 包括705名胎儿,他们有严重的脑部,腹壁和先天性心脏缺陷.
- 在引入cfDNA之前 (n=396) 和之后 (n=309) 的检测率的比较,重点是第一季度 (<14周) 的检测.
主要成果:
- 在cfDNA引入后,整体检测出胃,心房隔膜缺陷 (AVSD) 和左心脏缺血综合征 (HLHS) 的数量较低.
- 即使排除了染色体异常后,在cfDNA实施之前,AVSD检测仍然显著高.
- 在11-14周的约会扫描后,对疑似异常的推在cfDNA时代大幅增加.
结论:
- 取消FCT和引入cfDNA测试导致某些严重胎儿异常的第一季度检测率下降.
- 专门的第一季度胎儿解剖扫描对于早期检测这些异常是必不可少的.
- 这些发现强调了保持全面的第一季度查协议的重要性.
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