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中国防痨杂志 ›› 2015, Vol. 37 ›› Issue (4): 348-352.doi: 10.3969/j.issn.1000-6621.2015.04.004

• 论著 • 上一篇    下一篇

结核感染T细胞斑点试验在老年肺结核中的诊断价值

万荣 李明武 赖明红 刘永莉   

  1. 650041 云南省昆明市第三人民医院结核二科
  • 收稿日期:2014-08-19 出版日期:2015-04-10 发布日期:2015-04-03
  • 通信作者: 万荣 E-mail:wanrong123@163.com

Diagnostic value of T-SPOT.TB for elderly pulmonary tuberculosis

WAN Rong, LI Ming-wu, LAI Ming-hong, LIU Yong-li   

  1. No.2 Department of Tuberculosis,The Third People’s Hospital of Kunming, Yunnan,Kunming 650041, China
  • Received:2014-08-19 Online:2015-04-10 Published:2015-04-03
  • Contact: WAN Rong E-mail:wanrong123@163.com

摘要: 目的 探讨结核感染T细胞斑点试验(T-SPOT.TB)在老年肺结核中的诊断价值。 方法 搜集2010年11月至2012年2月在昆明市第三人民医院结核二科住院的老年肺部疾病患者257例,包括菌阳肺结核组患者73例,菌阴肺结核组患者95例,非结核病患者组89例。采用SPSS 13.0软件进行统计学分析,采用χ2检验比较T-SPOT.TB与常规实验室方法[痰抗酸涂片和痰结核分枝杆菌培养、结核菌素试验(PPD)、结核抗体、聚合酶链反应(PCR)检测TB-DNA、血红细胞沉降率(ESR)]诊断老年肺结核的敏感度和特异度,以P<0.05为差异有统计学意义。 结果 菌阳肺结核组T-SPOT.TB检测的敏感度为87.7%(64/73),PPD、结核抗体、TB-DNA、ESR检测的敏感度分别为57.4%(31/54)、71.4%(50/70)、77.6%(52/67)、81.7%(58/71);T-SPOT.TB与TB-DNA、ESR检测的敏感度比较,差异无统计学意义(χ2值分别为2.489、0.995,P值均>0,05),T-SPOT.TB与结核抗体、PPD检测的敏感度比较,差异有统计学意义(χ2=5.831,P<0.05;χ2=15.083,P<0.01)。菌阴肺结核组T-SPOT.TB、PPD、结核抗体和ESR检测的敏感度分别为86.3%(82/95)、57.3%(47/82)、42.4%(39/92)、60.9%(56/92);T-SPOT.TB与结核抗体、PPD、ESR检测的敏感度比较,差异有统计学意义(χ2值分别为39.485、18.726、15.650,P值均<0.01)。T-SPOT.TB、PPD、结核抗体、TB-DNA和ESR检测的特异度分别为92.1%(82/89)、82.7%(62/75)、83.1%(74/89)、98.9%(88/89)、41.2%(35/85);T-SPOT.TB与PPD、结核抗体检测的特异度比较,差异无统计学意义(χ2值分别为3.407、3.319,P值均>0.05),T-SPOT.TB与TB-DNA、ESR检测的特异度比较,差异有统计学意义(χ2值分别为4.712、51.254,P值均<0.05)。结论T-SPOT.TB在老年肺结核诊断中的敏感度和特异度均较高,值得临床推广。

关键词: 结核, 肺/诊断, 干扰素&, gamma, 释放试验, 老年人

Abstract: Objective  To evaluate the diagnostic value of T-SPOT.TB for the elderly pulmonary tuberculosis. Methods  From November 2010 to February 2012, 257 elderly inpatients (73 pulmonary TB patients with confirmed laboratory tests, 95 TB patients with clinical diagnosis, and 89 non-pulmonary tuberculosis patients) of the No.2 Department of Tuberculosis, The Third People’s Hospital of Kunming were recruited. The data were analyzed by SPSS 13.0. The sensitivity and specificity of T-SPOT.TB were compared with routine laboratory test such as acid-fast bacilli (AFB) smear and culture, skin test (PPD), TB-DOT/TB-CK, PCR for tuberculosis bacilli DNA (TB-DNA), and erythrocyte sedimentation rate (ESR). P<0.05 was considered statistically significant. Results  The sensitivities of T-SPOT.TB, PPD, TB-DOT/TB-CK, TB-DNA and ESR were respectively 87.7% (64/73), 57.4%(31/54), 71.4%(50/70), 77.6%(52/67) and 81.7%(58/71) for the TB patients with laboratory confirmation. The sensitivity of T-SPOT.TB was significantly higher than those of PPD and TB-DOT/TB-CK and the difference was statistically significant (χ2=5.831, P<0.05; χ2=15.083, P<0.01). The sensitivities of T-SPOT.TB, PPD, TB-DOT/TB-CK and ESR were respectively 86.3%(82/95), 57.3%(47/82), 42.4%(39/92) and 60.9%(56/92) for the patients with clinical TB diagnosis. The sensitivity of T-SPOT.TB was significantly higher than those of other laboratory tests (χ2=39.485, 18.726 and 15.650, P<0.01). The specificities of T-SPOT.TB, PPD, TB-DOT/TB-CK, TB-DNA and ESR were 92.1%(82/89), 82.7%(62/75), 83.1%(74/89), 98.9%(88/89) and 41.2%(35/85) respectively. The specificities of T-SPOT.TB was significantly higher than those of TB-DNA and ESR (χ2=4.712 and 51.254, P<0.05).  Conclusion The T-SPOT.TB has higher sensiti-vity and specificity in the diagnosis of elderly pulmonary tuberculosis, and it deserves the clinical expansion.

Key words: Tuberculosis, pulmonary/diagnosis, Interferon-gamma release tests, Aged