Blood:2396位出血、血栓和血小板异常患者的诊断性高通量测序结果分析

2019-05-13 MedSci MedSci原创

用于临床诊断的靶向高通量测序(HTS)面板检测需要仔细考虑所包含的合适的诊断级基因,能够检测多种基因突变,具有高水平的分析灵敏度和可重复性。Kate Downes等人通过诊断级基因的ThromboGenomics HTS面板检测(包含与罕见出血、血栓或血小板异常[BTPD]相关的突变)对2396位插入突变患者进行测序。根据临床表型明确分子诊断率,所有血栓、凝血、血小板计数和功能异常患者的总诊断率为

用于临床诊断的靶向高通量测序(HTS)面板检测需要仔细考虑所包含的合适的诊断级基因,能够检测多种基因突变,具有高水平的分析灵敏度和可重复性。

Kate Downes等人通过诊断级基因的ThromboGenomics HTS面板检测(包含与罕见出血、血栓或血小板异常[BTPD]相关的突变)对2396位插入突变患者进行测序。

根据临床表型明确分子诊断率,所有血栓、凝血、血小板计数和功能异常患者的总诊断率为,不明原因出血障碍患者(特征是止血试验结果正常)的诊断率为3.2%。

一个多学科团队(MDT)将745个独特变异(包括拷贝数变异和内含子变异)分为致病型、可能致病型和意义不明确型。一半的(50.9%)突变为新发突变,在最近发现与BTPD有关的7个基因中发现了41个独特变异。对经典凝血通路的分析发现29位患者具有单基因异常的证据。

综上所述,本研究表明引入HTS遗传检测,对于高遗传可能性的BTPD患者而言是一个极有价值的补充检测。

原始出处:

Kate Downes,et al.Diagnostic high-throughput sequencing of 2,396 patients with bleeding, thrombotic and platelet disorders.Blood 2019 :blood.2018891192; doi: https://doi.org/10.1182/blood.2018891192

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    2020-01-06 swallow
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