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Binay UD, Kara AV, Karakeçili F, Barkay O. Diagnosis of Latent Tuberculosis Infection in Hemodialysis Patients: TST versus T-SPOT.TB. Diagnostics (Basel) 2023; 13:2369. [PMID: 37510113 PMCID: PMC10378133 DOI: 10.3390/diagnostics13142369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/07/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
Hemodialysis (HD) patients should be screened for latent tuberculosis (TB) infection. We aimed to determine the frequency of latent TB infection in HD patients and to compare the effectiveness of the tests used. The files of 56 HD patients followed between 1 January 2021 and 1 October 2022 were retrospectively analyzed. Demographic data, the presence of the Bacillus Calmette-Guerin (BCG) vaccine, whether or not the patients had previously received treatment for TB before, the status of encountering a patient with active TB of patients over 18 years of age, without active tuberculosis and who had a T-SPOT.TB test or a Tuberculin Skin Test (TST) were obtained from the patient files. The presence of previous TB in a posterior-anterior (PA) chest X-ray was obtained by evaluating PA chest X-rays taken routinely. Of the patients, 60.7% (n = 34) were male and their mean age was 60.18 ± 14.85 years. The mean duration of dialysis was 6.43 ± 6.03 years, and 76.8% (n = 43) had 2 BCG scars. The T-SPOT.TB test was positive in 32.1% (n = 18). Only 20 patients (35.7%) had a TST and all had negative results. While the mean age of those with positive T-SPOT.TB results was higher (p = 0.003), the time taken to enter HD was shorter (p = 0.029). T-SPOT.TB test positivity was higher in the group that had encountered active TB patients (p = 0.033). However, no significant difference was found between T-SPOT.TB results according to BCG vaccine, albumin, urea and lymphocyte levels. Although T-SPOT.TB test positivity was higher in patients with a previous TB finding in a PA chest X-ray, there was no statistically significant difference (p = 0.093). The applicability of the TST in the diagnosis of latent TB infection in HD patients is difficult and it is likely to give false-negative results. The T-SPOT.TB test is not affected by the BCG vaccine and immunosuppression. Therefore, using the T-SPOT.TB test would be a more appropriate and practical approach in the diagnosis of latent TB in HD patients.
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Affiliation(s)
- Umut Devrim Binay
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Erzincan Binali Yıldırım University, 24100 Erzincan, Turkey
| | - Ali Veysel Kara
- Department of Nephrology, Faculty of Medicine, Erzincan Binali Yıldırım University, 24100 Erzincan, Turkey
| | - Faruk Karakeçili
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Erzincan Binali Yıldırım University, 24100 Erzincan, Turkey
| | - Orçun Barkay
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Erzincan Binali Yıldırım University, 24100 Erzincan, Turkey
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Ortiz-Brizuela E, Apriani L, Mukherjee T, Lachapelle-Chisholm S, Miedy M, Lan Z, Korobitsyn A, Ismail N, Menzies D. Assessing the Diagnostic Performance of New Commercial Interferon-γ Release Assays for Mycobacterium tuberculosis Infection: A Systematic Review and Meta-Analysis. Clin Infect Dis 2023; 76:1989-1999. [PMID: 36688489 PMCID: PMC10249994 DOI: 10.1093/cid/ciad030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/05/2023] [Accepted: 01/13/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND We compared 6 new interferon-γ release assays (IGRAs; hereafter index tests: QFT-Plus, QFT-Plus CLIA, QIAreach, Wantai TB-IGRA, Standard E TB-Feron, and T-SPOT.TB/T-Cell Select) with World Health Organization (WHO)-endorsed tests for tuberculosis infection (hereafter reference tests). METHODS Data sources (1 January 2007-18 August 2021) were Medline, Embase, Web of Science, Cochrane Database of Systematic Reviews, and manufacturers' data. Cross-sectional and cohort studies comparing the diagnostic performance of index and reference tests were selected. The primary outcomes of interest were the pooled differences in sensitivity and specificity between index and reference tests. The certainty of evidence (CoE) was summarized using the GRADE approach. RESULTS Eighty-seven studies were included (44 evaluated the QFT-Plus, 4 QFT-Plus CLIA, 3 QIAreach, 26 TB-IGRA, 10 TB-Feron [1 assessing the QFT-Plus], and 1 T-SPOT.TB/T-Cell Select). Compared to the QFT-GIT, QFT Plus's sensitivity was 0.1 percentage points lower (95% confidence interval [CI], -2.8 to 2.6; CoE: moderate), and its specificity 0.9 percentage points lower (95% CI, -1.0 to -.9; CoE: moderate). Compared to QFT-GIT, TB-IGRA's sensitivity was 3.0 percentage points higher (95% CI, -.2 to 6.2; CoE: very low), and its specificity 2.6 percentage points lower (95% CI, -4.2 to -1.0; CoE: low). Agreement between the QFT-Plus CLIA and QIAreach with QFT-Plus was excellent (pooled κ statistics of 0.86 [95% CI, .78 to .94; CoE: low]; and 0.96 [95% CI, .92 to 1.00; CoE: low], respectively). The pooled κ statistic comparing the TB-Feron and the QFT-Plus or QFT-GIT was 0.85 (95% CI, .79 to .92; CoE: low). CONCLUSIONS The QFT-Plus and the TB-IGRA have very similar sensitivity and specificity as WHO-approved IGRAs.
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Affiliation(s)
- Edgar Ortiz-Brizuela
- McGill International Tuberculosis Centre, Department of Medicine, McGill University, Montreal, Quebec, Canada
- Department of Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Lika Apriani
- Tuberculosis Working Group, Research Centre for Care and Control of Infectious Diseases, Universitas Padjadjaran, Bandung, Indonesia
- Department of Public Health, Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Tania Mukherjee
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Sophie Lachapelle-Chisholm
- McGill International Tuberculosis Centre, Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Michele Miedy
- McGill University Health Center, Department of Intensive Care Unit, McGill University, Montreal, Quebec, Canada
| | - Zhiyi Lan
- McGill International Tuberculosis Centre, Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Alexei Korobitsyn
- Global Tuberculosis Programme, World Health Organization, Geneva, Switzerland
| | - Nazir Ismail
- Global Tuberculosis Programme, World Health Organization, Geneva, Switzerland
| | - Dick Menzies
- McGill International Tuberculosis Centre, Department of Medicine, McGill University, Montreal, Quebec, Canada
- Respiratory Epidemiology and Clinical Research Unit, Research Institute of the McGill University Health Centre, Montreal Chest Institute, McGill University, Montreal, Quebec, Canada
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Djibougou DA, Mensah GI, Sagna T, Sawadogo LT, Ouedraogo AK, Kabore A, Hien H, Meda CZ, Combary A, Belem AMG, Addo KK, Dabiré RK, Perreau M, Zinsstag J, Diagbouga SP. Magnitude and associated factors of latent tuberculosis infection due to Mycobacterium tuberculosis complex among high-risk groups in urban Bobo-Dioulasso, Burkina Faso. IJID REGIONS 2022; 4:1-9. [PMID: 36093366 PMCID: PMC9453046 DOI: 10.1016/j.ijregi.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/09/2022] [Accepted: 05/12/2022] [Indexed: 11/02/2022]
Abstract
The overall prevalence of latent tuberculosis infection (LTBI) in this study was 63.36%. The positivity rate for the tuberculin skin test was higher compared with the QuantiFERON-TB Gold Plus test. The prevalence of LTBI was high among slaughterhouse workers (100%). Protozoal infection was found to be significantly associated with LTBI.
Objectives Methods Results Conclusion
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