低复杂性手动核酸放大试验用于儿童肺结核病
Leeberk Raja Inbaraj1, Mukesh Kumar Sathya Narayanan2, Jefferson Daniel3
1Department of Clinical Research, ICMR - National Institute for Research in Tuberculosis, Chennai, India.
The Cochrane database of systematic reviews
|June 25, 2025
概括
低复杂的手动核酸放大试验 (LC-mNAATs) 显示了儿童结核病的可变的诊断准确性. 需要进一步的大规模研究来确认它们在不同儿科群体中的实用性.
科学领域:
- 儿童传染病 儿童传染病
- 分子诊断学 分子诊断学
- 结核病的研究研究.
背景情况:
- 由于非特异性症状和低细菌负载,诊断儿童结核病具有挑战性.
- 世界卫生组织推的低复杂性手动核酸放大测试 (LC-mNAAT),如TB-LAMP,提供快速的分子诊断.
- 这些测试在成年人中显示出很好的准确性,即使在资源有限的环境中也是如此.
研究的目的:
- 为了确定10岁以下儿童肺结核的LC-mNAATs的诊断准确性.
- 为了将LC-mNAAT与Xpert MTB/RIF Ultra和涂抹显微镜进行比较.
- 评估LC-mNAAT作为附加测试,并研究异质性因素.
主要方法:
- 对横截面和队列研究的系统审查和元分析.
- 包括对儿童 (<10岁) 的LC-mNAATs (TB-LAMP) 评估与微生物参考标准的研究.
- 使用Xpert MTB/RIF Ultra和涂抹显微镜进行比较,并使用QUADAS-2进行偏差风险评估.
主要成果:
- 包括四项研究 (303名参与者),数据有限,无法进行元分析.
- 诊断准确度因样本类型而异:呼吸道样本 (60-100%的灵敏度,95-100%的特异性),胃吸附物 (64%的灵敏度),胃洗 (100%的灵敏度,96%的特异性),鼻吸附物 (58%的灵敏度,94%的特异性) 和便 (100%的灵敏度,92%的特异性).
- 对敏感性和特异性的证据确定性低至非常低.
结论:
- 在儿童中LC-mNAAT诊断准确性的证据是有限的,因为很少有小型研究.
- 像TB-LAMP这样的LC-mNAAT在儿科结核病诊断中的实用性需要进一步研究.
- 较大的,充足的动力研究是必要的,以证实在不同儿科群体的诊断性能.
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