检验医学 ›› 2019, Vol. 34 ›› Issue (8): 742-745.DOI: 10.3969/j.issn.1673-8640.2019.08.0015

• 技术研究与评价·论著 • 上一篇    下一篇

Xpert MTB/RIF Ultra在结核分枝杆菌及利福平耐药检测中的价值

王伟1, 李静1, 李铮1, 杨晶1, 苑星1, 张国龙2, 陈会会1()   

  1. 1.河南省胸科医院检验科,河南 郑州 450000
    2.河南省疾病预防控制中心,河南 郑州 450000
  • 收稿日期:2018-09-09 出版日期:2019-08-30 发布日期:2019-08-27
  • 作者简介:null

    作者简介:王伟,女,1976年生,硕士,副主任技师,主要从事临床微生物与免疫学研究。

  • 基金资助:
    中美结核病科研合作项目(DMID13-0029);河南省科技厅攻关项目(162102410043);河南省科技厅攻关项目(2018010038)

Role of Xpert MTB/RIF Ultra in the detection of Mycobacterium tuberculosis and rifampicin resistance

WANG Wei1, LI Jing1, LI Zheng1, YANG Jing1, YUAN Xing1, ZHANG Guolong2, CHEN Huihui1()   

  1. 1. Department of Clinical Laboratory,Henan Chest Hospital,Zhengzhou 450000,Henan,China
    2. Henan Provincial Center for Disease Control and Prevention,Zhengzhou 450000,Henan,China
  • Received:2018-09-09 Online:2019-08-30 Published:2019-08-27

摘要:

目的 通过与Xpert MTB/RIF比较,评价Xpert MTB/RIF Ultra在结核分枝杆菌及利福平耐药检测中的价值。方法 选取出现肺结核症状的患者,根据是否确诊肺结核以及治疗情况分为结核检测组(CDG)和耐药结核组(DRG)。分别采用Xpert MTB/RIF和Xpert MTB/RIF Ultra检测2组患者的痰标本,以MGIT960液体培养作为参考方法,比较2种方法在结核分枝杆菌及利福平耐药检测中的敏感性和特异性。结果 Xpert MTB/RIF Ultra在结核分枝杆菌检测中的敏感性(96.1%)高于Xpert MTB/RIF(85.2%),特异性相同;Xpert MTB/RIF Ultra在抗酸染色涂片阴性患者的结核病检测中敏感性(75.5%)明显高于Xpert MTB/RIF(22.6%)。结论 Xpert MTB/RIF Ultra在结核病患者尤其是在抗酸染色涂片阴性患者结核病检测中的价值优于Xpert MTB/RIF。

关键词: Xpert MTB/RIF Ultra, Xpert MTB/RIF, 结核分枝杆菌, 利福平, 耐药

Abstract:

Objective To evaluate the role of Xpert MTB/RIF Ultra in the detection of Mycobacterium tuberculosis and rifampicin resistance by comparing with Xpert MTB/RIF. Methods Patients with pulmonary tuberculosis symptoms were enrolled and classified into case detection group(CDG) and multidrug-resistance risk group(DRG). The sputum samples of the 2 groups were detected by Xpert MTB/RIF and Xpert MTB/RIF Ultra,respectively. The MGIT960 liquid culturing was used as a reference method to compare the sensitivities and specificities in the detection of Mycobacterium tuberculosis and rifampicin resistance. Results The sensitivity of Xpert MTB/RIF Ultra in the detection of Mycobacterium tuberculosis was 96.1%,which was higher than that of Xpert MTB/RIF(85.2%). The specificities were the same. Xpert MTB/RIF Ultra was sensitive in the detection of tuberculosis with negative acid-fast staining smear,and the sensitivity(75.5%) was higher than that of Xpert MTB/RIF(22.6%). Conclusions Xpert MTB/RIF Ultra is superior to Xpert MTB/RIF in the detection of tuberculosis,especially in patients with negative acid-fast staining smear tuberculosis.

Key words: Xpert MTB/RIF Ultra, Xpert MTB/RIF, Mycobacterium tuberculosis, Rifampicin, Drug resistance

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