染色体微数组测试在829例小头病例中的收益:对产前和产后病例的基于临床特征的分析
Rivka Sukenik-Halevy1,2, Nir Mevorach3, Lina Basel-Salmon4,5,6,7
1Genetic Institute, Meir Medical Center, Kfar Saba, Israel. Riki.sukenik@gmail.com.
Archives of gynecology and obstetrics
|March 18, 2024
概括
染色体微阵列 (CMA) 测试可以检测小头症病例中的遗传异常. 产后测试比产前测试 (4.6%) 产生了更积极的结果 (15%),特别是具有额外的临床特征.
科学领域:
- 医学遗传学 医学遗传学
- 发展生物学 发展生物学
- 临床诊断 临床诊断 临床诊断
背景情况:
- 微头症是一种头部生长异常的疾病,通常是潜在的先天性,遗传性或获得性疾病的信号.
- 早期识别小头症对于诊断相关疾病和指导管理至关重要.
研究的目的:
- 为了评估染色体微阵列 (CMA) 检测小头症的诊断有效性.
- 为了比较产前与产后病例的CMA产量.
- 为了确定与微头症中积极的CMA结果相关的临床因素.
主要方法:
- 染色体微阵列 (CMA) 测试对87例产前和742例产后小头症病例进行了测试.
- 根据临床特征和妊娠状态,分析了CMA结果.
主要成果:
- 在4.6%的产前病例和15.0%的产后病例中发现了致病性/可能致病性结果.
- 在产后病例中,CMA产量在异形,低血压,,先天性心脏缺陷,学习障碍和胎儿生长限制的情况下显著更高.
- 没有观察到复杂的副本数量变化;未知意义的变异发生在3.9%.
结论:
- CMA测试对于检测小头症的遗传异常是有效的.
- 在产后 (15.0%) 与产前 (4.6%) 微头症评估相比,CMA的诊断产量显著更高.
- 特定的临床特征大大增加了识别微头症患者异常CMA结果的概率.
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