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基于探针捕获的针对性下一代测序在血流感染中的病因诊断性能

Sishi Cai¹, Jianying Yuan², Yingzhen Li²

¹Department of Infectious Diseases, Zhongshan Hospital, Fudan University, Shanghai, China.

Journal of thoracic disease

|May 13, 2024

概括

基于探头捕获的下一代向测序 (tNGS) 与血液培养和元基因组测序相比,为血液感染 (BSI) 诊断提供了更高的灵敏度和速度. 这种方法有助于指导抗感染疗法并改善患者的治疗结果.

科学领域:

临床微生物学临床微生物学
传染性疾病传染性疾病
基因组诊断基因组诊断基因组诊断

背景情况:

准确和快速的病因诊断对于有效的血液感染 (BSI) 治疗至关重要.
下一代测序 (NGS) 技术为病原体检测提供了潜在的进步.

研究的目的:

为了比较基于探头捕获的向NGS (tNGS) 与血液培养和BSI的元基因NGS (mNGS) 的诊断性能.
评估tNGS在指导抗感染疗法的临床实用性.

主要方法:

预计将招募80名怀疑BSI的患者.
同时采集血液样本进行培养,mNGS和tNGS.
对诊断灵敏度,特异性和周转时间进行比较分析.

主要成果:

血液tNGS对BSI诊断的敏感性明显高于血液培养 (91.3%与23.2%) 和mNGS (91.3%与69.6%).
tNGS的特异性与mNGS相似 (100.0%与81.8%相比).
在31.9%的BSI患者中,tNGS提供了更快的周转时间和指导治疗调整,导致临床改善.

结论:

血液tNGS是一种有前途的工具,用于检测BSI患者的病原体.
tNGS可以指导抗感染治疗策略,并有可能改善临床结果.

关键词:

基于探头捕获的下一代定向测序 (基于探头捕获的tNGS)血液文化血液文化血流感染 (BSI) 是一种疾病.诊断诊断诊断的诊断诊断诊断诊断的诊断基因组下一代测序 (mNGS) 是一种

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