Pulmonary tuberculosis diagnostic test using fluorescence immunoassay-based interferon gamma release assay with IchromaTM IGRA-TB.

Q3 Medicine

Medical Journal of Malaysia Pub Date : 2024-09-01

B Bermawi, D W Kurniasari, A Imaniar, N Hidayatih, D A Lisnawati, I F Rofananda, P Prihatini

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引用次数: 0

Abstract

Introduction: Tuberculosis (TB) is a serious global health problem in Indonesia, which is the country with the secondhighest TB burden after India. Accuracy in TB diagnosis is the key to effective treatment and decreased transmission rate. One of the latest diagnostic methods is interferon gamma release assay (IGRA), which measures the interferon-γ release associated with Mycobacterium tuberculosis (MTB) infection. This study aims to determine the diagnostic value of IGRA-TB using IchromaTM IGRA-TB diagnostic kit (sensitivity, specificity, positive predictive value [PPV], and negative predictive value [NPV]), compared to Ziehl-Neelsen (AFB) staining, nucleic acid amplificationbased test (Xpert-MTB) and chest-X Ray as the gold standard in TB diagnosis.

Materials and methods: A cross-sectional observational study design was used. Patients were recruited through purposive sampling from pulmonology outpatient clinic and inpatient ward at Jemursari Islamic Hospital (RSI Jemursari), Surabaya from July 2023 to December 2023. All enrolled patients should have been previously tested positive or negative for pulmonary TB using AFB staining, Xpert MTB and chest x-ray. Blood samples of the patients were collected and processed using the IchromaTM IGRA-TB diagnostic kit. The results were then compared with gold standard methods for calculating the IGRA-TB diagnostic value.

Results: A total of 56 adult patients were enrolled in this study. The sensitivity, specificity, PPV, NPV and accuracy rate of IGRA-TB using IchromaTM IGRA-TB diagnostic kit were 80.56%, 85%, 90.62%, 70.83% and 82.14%, respectively.

Conclusion: IchromaTM IGRA-TB showed reasonably high diagnostic sensitivity and specificity, indicating that this method can be further utilised as a diagnostic and screening tool for pulmonary TB.

本刊更多论文

使用基于荧光免疫测定的 IchromaTM IGRA-TB γ 干扰素释放测定法进行肺结核诊断检测。

导言：在印度尼西亚，结核病是一个严重的全球健康问题，该国的结核病负担仅次于印度。结核病诊断的准确性是有效治疗和降低传播率的关键。干扰素γ释放测定（IGRA）是最新的诊断方法之一，它可以测量与结核分枝杆菌（MTB）感染相关的干扰素γ释放。本研究旨在确定使用 IchromaTM IGRA-TB 诊断试剂盒的 IGRA-TB 的诊断价值（灵敏度、特异性、阳性预测值 [PPV] 和阴性预测值 [NPV]），并与作为肺结核诊断金标准的齐氏-奈尔森（AFB）染色法、基于核酸扩增的检测法（Xpert-MTB）和胸部 X 线片进行比较：采用横断面观察研究设计。患者于 2023 年 7 月至 2023 年 12 月期间通过有目的的抽样从泗水 Jemursari 伊斯兰医院（RSI Jemursari）的肺科门诊和住院病房招募。所有入选患者均应曾通过AFB染色、Xpert MTB和胸部X光检查发现肺结核呈阳性或阴性。患者的血样由 IchromaTM IGRA-TB 诊断试剂盒采集和处理。然后将结果与计算 IGRA-TB 诊断值的金标准方法进行比较：结果：本研究共纳入 56 名成年患者。使用 IchromaTM IGRA-TB 诊断试剂盒检测 IGRA-TB 的敏感性、特异性、PPV、NPV 和准确率分别为 80.56%、85%、90.62%、70.83% 和 82.14%：IchromaTM IGRA-TB 诊断试剂盒显示出相当高的诊断灵敏度和特异性，表明该方法可进一步用作肺结核的诊断和筛查工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Medical Journal of Malaysia Medicine-Medicine (all)

CiteScore

1.20

自引率

0.00%

发文量

165

期刊介绍： Published since 1890 this journal originated as the Journal of the Straits Medical Association. With the formation of the Malaysian Medical Association (MMA), the Journal became the official organ, supervised by an editorial board. Some of the early Hon. Editors were Mr. H.M. McGladdery (1960 - 1964), Dr. A.A. Sandosham (1965 - 1977), Prof. Paul C.Y. Chen (1977 - 1987). It is a scientific journal, published quarterly and can be found in medical libraries in many parts of the world. The Journal also enjoys the status of being listed in the Index Medicus, the internationally accepted reference index of medical journals. The editorial columns often reflect the Association''s views and attitudes towards medical problems in the country. The MJM aims to be a peer reviewed scientific journal of the highest quality. We want to ensure that whatever data is published is true and any opinion expressed important to medical science. We believe being Malaysian is our unique niche; our priority will be for scientific knowledge about diseases found in Malaysia and for the practice of medicine in Malaysia. The MJM will archive knowledge about the changing pattern of human diseases and our endeavours to overcome them. It will also document how medicine develops as a profession in the nation. We will communicate and co-operate with other scientific journals in Malaysia. We seek articles that are of educational value to doctors. We will consider all unsolicited articles submitted to the journal and will commission distinguished Malaysians to write relevant review articles. We want to help doctors make better decisions and be good at judging the value of scientific data. We want to help doctors write better, to be articulate and precise.