在下一代测序时代,对患有发作的患者进行诊断评估
Ali Mir1, Mohammed AlQahtani1,2, Fawzia Amer1,3
1Department of Pediatric Neurology, King Fahad Specialist Hospital, Dammam, Saudi Arabia.
概括
下一代测序 (NGS) 显著增加了发作 (ES) 的遗传原因的诊断,当初步评估是不确定的. 在这些具有挑战性的病例中,外体序列测定为确定ES病因提供了更高的诊断产量.
科学领域:
- 神经学 神经学
- 遗传学 是一个遗传学.
- 的研究研究.
背景情况:
- 发作 (ES) 是一个诊断挑战,在标准临床评估和神经成像后,近一半的病例具有未确定的病因.
- 下一代测序 (NGS) 已经成为识别神经系统疾病 (包括ES) 的遗传原因的强大工具.
研究的目的:
- 评估基因检测的诊断产量和最佳测序策略,特别是NGS,对于有未知病因的发作 (ES) 的患者.
- 确定不同基因测试方式的有效性,包括心型定型,染色体微阵列,基因面板和外基因测序,用于诊断ES.
主要方法:
- 对2009年至2022年期间评估的123名ES患者的医疗记录的回顾性审查.
- 分析各种遗传检测方法的诊断产量:型,染色体微阵列,NGS病基因面板和外体序列.
主要成果:
- 在57.7%的ES患者中,标准评估没有确定病因.
- 基因测试在35.2%的患者中确定了病因;外体序列测试显示,与基因组 (24.4%) 相比,诊断产量更高 (总体为37.3%,没有先前面板测试的人为61.5%).
- 型定型和染色体微阵列分别在3.6%和7.1%的患者中产生了诊断.
结论:
- 外体序列测定在临床评估和脑MRI后持续诊断不确定性的患者中,对于诊断ES的病因学是非常有效的.
- 在ES的诊断工作中,当常规方法无法确定原因时,应优先考虑NGS,特别是外基因组测序.
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