结核与肺部疾病杂志 ›› 2023, Vol. 4 ›› Issue (4): 313-317.doi: 10.19983/j.issn.2096-8493.20230044

• 论著 • 上一篇    下一篇

γ-干扰素释放试验在结核病诊断中的价值

宋翌琰, 马丽玲, 陈慧, 杭茵, 陈苏芳, 徐俊驰, 吴敏娟, 胥萍()   

  1. 苏州市第五人民医院/苏州大学附属传染病医院检验中心,苏州 215131
  • 收稿日期:2023-03-15 出版日期:2023-08-20 发布日期:2023-08-15
  • 通信作者: 胥萍,Email:573311485@qq.com
  • 基金资助:
    苏州市重点学科——检验医学(SZXK201814);苏州市不明病原体感染性疾病诊疗重点实验室(szs2020311);苏州市科技计划项目(SYS2020191);苏州市科技计划项目(KJXW2020049);苏州市科技计划项目(SKJY2021138);苏州市科技计划项目(SLJ2021017)

Value of interferon-γ release assays in the diagnosis of tuberculosis

Song Yiyan, Ma Liling, Chen Hui, Hang Yin, Chen Sufang, Xu Junchi, Wu Minjuan, Xu Ping()   

  1. Department of Clinical Laboratory, Infectious Disease Hospital Affiliated to Soochow University/The Fifth People’s Hospital of Suzhou, Jiangsu Province, Suzhou 215131, China
  • Received:2023-03-15 Online:2023-08-20 Published:2023-08-15
  • Contact: Xu Ping, Email: 573311485@qq.com
  • Supported by:
    Key Discipline of Suzhou—Laboratory Medicine(SZXK201814);Suzhou Key Laboratory of Diagnosis and Treatment of Infectious Diseases with Unknown Pathogens(szs2020311);Suzhou Science and Technology Project(SYS2020191);Suzhou Science and Technology Project(KJXW2020049);Suzhou Science and Technology Project(SKJY2021138);Suzhou Science and Technology Project(SLJ2021017)

摘要:

目的: 探讨γ-干扰素释放试验(interferon-γ release assays,IGRA)在结核病诊断中的应用价值。 方法: 采用回顾性研究方法,选取2022年7—10月苏州市第五人民医院结核病门诊就诊的具有结核病相关症状和(或)体征的疑似结核病患者作为研究对象,共331例。所有研究对象均行IGRA检测和痰涂片检测。以临床综合诊断结果为参照,评价IGRA和痰涂片对结核病的诊断效能。 结果: 331例研究对象中,199例(60.12%)确诊为结核病,其中,IGRA阳性检出率为83.92%(167/199),明显高于痰涂片的阳性检出率[21.61%(43/199)],差异有统计学意义(χ2=155.000,P<0.01);陈旧性肺结核患者IGRA检测阳性率为66.67%(10/15),明显高于痰涂片阳性检出率[6.67%(1/15)],差异有统计学意义(χ2=11.630,P<0.01);活动性肺结核患者IGRA阳性检出率为83.83%(140/167),明显高于痰涂片的阳性检出率[24.55%(41/167)],差异有统计学意义(χ2=118.200,P<0.01)。IGRA检测其他呼吸道疾病患者的阳性检出率为31.82%(42/132),明显低于检测结核病患者的阳性检出率,差异有统计学意义(χ2=92.570,P<0.01)。以临床综合诊断结果为参考,IGRA检测结核病的敏感度、特异度、阳性预测值、阴性预测值和准确度分别为83.92%(167/199)、68.18%(90/132)、79.90%(167/209)、73.77%(90/122)和77.64%(257/339);IGRA和痰涂片联合检测结核病的敏感度、特异度、阳性预测值、阴性预测值和准确度分别为87.44%(174/199)、60.61%(80/132)、76.99%(174/226)、76.19%(80/105)和76.74%(254/339)。 结论: IGRA对结核病具有较好的辅助诊断价值。

关键词: 干扰素类, 结核, 诊断,鉴别, 回顾性研究

Abstract:

Objective: To explore the application value of interferon-γ release assays (IGRA) in the diagnosis of tuberculosis. Methods: A retrospective study was conducted in 331 suspected tuberculosis patients with tuberculosis related symptoms and (or) signs from the tuberculosis clinic of the Fifth People’s Hospital of Suzhou from July to October 2022. All the subjects underwent IGRA testing and sputum smear testing. The diagnostic efficacy of IGRA and sputum smear for tuberculosis was evaluated by referring to the results of clinical comprehensive diagnosis. Results: Of the 331 subjects, 199 (60.12%) were diagnosed as tuberculosis, of which, the positive rate of IGRA was 83.92% (167/199), significantly higher than that of sputum smear (21.61% (43/199), χ2=155.000, P<0.01); the positive rate of IGRA detection in patients with prior pulmonary tuberculosis was 66.67% (10/15), which was significantly higher than that of sputum smear (6.67% (1/15), χ2=11.630, P<0.01); the positive detection rate of IGRA in active pulmonary tuberculosis patients was 83.83% (140/167), which was significantly higher than that of sputum smear (24.55% (41/167), χ2=118.200, P<0.01). The positive detection rate of IGRA in patients with other respiratory diseases was 31.82% (42/132), which was significantly lower than that in patients with tuberculosis (χ2=92.570, P<0.01). Taking the clinical comprehensive diagnosis results as reference, the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of IGRA in detecting tuberculosis were 83.92% (167/199), 68.18% (90/132), 79.90% (167/209), 73.77% (90/122) and 77.64% (257/339) respectively; the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of IGRA and sputum smear in parallel detection of tuberculosis were 87.44% (174/199), 60.61% (80/132), 76.99% (174/226), 76.19% (80/105) and 76.74% (254/339), respectively. Conclusion: IGRA has good auxiliary diagnostic value for tuberculosis.

Key words: Interferons, Tuberculosis, Diagnosis, differential, Retrospective studies

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