Urine TB LAM as a Tool for Helping Diagnosis and Follow Up of Treatment Response of Pulmonary Tuberculosis
Main Article Content
Abstract
OBJECTIVES: To evaluate role of urine Tuberculosis Lipoarabinomannam (TB LAM) in making a diagnosis among human immunodeficiency virus (HIV) negative patients with pulmonary tuberculosis.
MATERIALS AND METHODS: Sixty-six cases of HIV negative who were suspected of pulmonary tuberculosis were recruited, sputum examination of acid fast stain and culture, chest x-ray, urine TB LAM were sent, bronchoscopy and washing and biopsy were performed among 12 cases.
RESULTS: Thirty-six patients were finally diagnosed as tuberculosis. The sensitivity of urine TB LAM was 66.7%, specificity was 90%.
CONCLUSION: TB LAM should be used as an add-on to clinical judgement in combination with other tests. Keywords: urine TB LAM, pulmonary tuberculosis
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
References
World Health Organization (WHO). WHO updates policy for the use of lateral flow urine lipoarabinomannan assay (LF-LAM) for diagnosing active tuberculosis in people living with HIV. at 4/11/2019. (Accessed at January 15, 2023 at https://www.who.int/news/item/04-11-2019-who-updates policy-for-the-use-of-lateral-flow-urine-lipoarabinomannan assay-(lf-lam))
Huerga H, Bastard M, Lubega AV, et al. Novel FujiLAM assay to detect tuberculosis in HIV positive patients in four African countries: a diagnostic accuracy study. Lancet Glob Health 2023;11(1):e126-e135. doi: 10.1016/S2214- 109X(22)00463-6.
World Health Organization (WHO). Global tuberculosis report 2020;1-232 . (Accessed at January 15, 2023 at https://www. who.int/publications/i/item/9789240013131).
Bulterys MA, Wagner B, Redard-Jacot M, et al. Point-of-Care urine LAM tests for tuberculosis diagnosis: A status update. J Clin Med 2019;9(1):111. doi: 10.3390/jcm9010111.
Kawasaki M, Echiverri C, Raymond L, et al. Lipoarabinoman nan in sputum to detect bacterial load and treatment response in patients with pulmonary tuberculosis: Analytic validation and evaluation in two cohorts. PLoS Med 2019;16(4):e1002780. doi: 10.1371/journal.pmed.1002780.
Suwanpimolkul G, Kawkitinarong K, Manosuthi W, et al. Utility of urine lipoarabinomannan (LAM) in diagnosing tuberculosis and predicting mortality with and without HIV: prospective TB cohort from the Thailand Big City TB Research Network. Int J Infect Dis 2017;59:96-102. doi: 10.1016/j.ijid.2017.04.017.
Amin AG, De P, Graham B, et al. Urine lipoarabinomanan in HIV uninfected, smear negative, symptomatic TB patients: effective sample pretreatment for a sensitive immunoassay and mass spectrometry. Sci Rep 2021;11(1):2922. doi: 10.1038/s41598-021-82445-4