大理大学学报 ›› 2021, Vol. 6 ›› Issue (10): 63-.DOI: 10. 3969/j. issn. 2096-2266. 2021. 10. 014

• 临床医学 • 上一篇    下一篇

Xpert MTB/RIF在肺结核病诊断及利福平耐药性检测中的验证性分析

张镜兰,陈 冉   

  1. (大理白族自治州疾病预防控制中心检验中心,云南大理 671000

  • 收稿日期:2021-05-10 修回日期:2021-06-04 出版日期:2021-10-15 发布日期:2021-12-11
  • 通讯作者: 陈冉,主管技师,E-mail:1105894360@qq.com。
  • 作者简介:张镜兰,主管技师,主要从事结核病预防控制研究。

Validation Study of Xpert MTB/RIF in Diagnosis of Pulmonary Tuberculosis and Detection of Rifampicin Resistance

Zhang Jinglan Chen Ran   

  1. Laboratory Testing Center Center for Disease Control and Prevention in Dali Bai Autonomous Prefecture Dali Yunnan 671000 China

  • Received:2021-05-10 Revised:2021-06-04 Online:2021-10-15 Published:2021-12-11

摘要:

目的:通过对比Xpert MTB/RIF技术与比例法药敏试验对结核分枝杆菌(Mycobacterium tuberculosis MTB)检出率的差距,评价两种方法对检测MTB、利福平耐药性方面的应用效果。方法:对546例肺结核患者和疑似患者痰培养阳性标本进行Xpert MTB/RIF检测、菌种鉴定及比例法药敏试验,评价Xpert MTB/RIF检测的灵敏性、特异性、95%CI。结果:药敏试验初治患者对抗结核药物的总耐药率为3.01%,利福平耐药率为2.31%;复治患者对抗结核药物的总耐药率为76.47%,利福平耐药率为11.76%Xpert MTB/RIF检测利福平耐药的灵敏性为97.50%,特异性为97.41%。结论:Xpert MTB/RIF在肺结核病的诊断及利福平耐药检查中的灵敏性及特异性极高,与比例法具有最佳一致性,是肺结核诊断及耐药筛查快速、有效的方法。

关键词:

"> Xpert MTB/RIF">技术;结核分枝杆菌;利福平

Abstract:

Objective By comparing the difference between Xpert MTB/RIF technology and proportional drug sensitivity test in the detection rates of Mycobacterium tuberculosisMTB), the application effects of the two methods on the detection of MTB and rifampicin resistance were evaluated. Methods Xpert MTB/RIF detection strain identification and proportional drug sensitivity test were performed on 546 cases of pulmonary tuberculosis and suspected patients with positive sputum culture specimens to evaluate the sensitivity specificity and 95%CI of Xpert MTB/RIF detection. Results In the drug sensitivity test the total resistance rate of anti-tuberculosis drugs in initial treatment patients was 3.01% and that of rifampicin was 2.31% the total resistance rate of anti-tuberculosis drugs in retreated patients was 76.47% and that of rifampicin was 11.76%. The sensitivity of Xpert MTB/RIF for rifampicin resistance was 97.50% and the specificity was 97.41%. Conclusion Xpert MTB/RIF has extremely high sensitivity and specificity in the diagnosis of pulmonary tuberculosis and the detection of rifampicin resistance and it has great consistency with the proportional method. It is a rapid and effective method for the diagnosis and drug resistance screening of pulmonary tuberculosis.

Key words: font-family:", ">Xpert MTB/RIFfont-family:宋体, ">;font-family:", "> Mycobacterium tuberculosisfont-family:宋体, ">;font-family:", "> rifampicin

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