ArticlePloS one2016
Rapid Screening of MDR-TB in Cases of Extra Pulmonary Tuberculosis Using Geno Type MTBDRplus.
Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Systematic Review of Mutations Associated with Isoniazid Resistance Points to Continuing Evolution and Subsequent Evasion of Molecular Detection, and Potential for Emergence of Multidrug Resistance in Clinical Strains of Mycobacterium tuberculosis.Antimicrobial agents and chemotherapy · 2021Pooled it
- Association of pyrazinamide resistance in Mycobacterium tuberculosis with mutations in rpoB, katG, and inhA genes.Scientific reports · 2026Article
- Genotypic analysis of drug-resistant tuberculosis in Ghana: Insights into pre-XDR and XDR-TB.PloS one · 2025Article
- Extrapulmonary tuberculosis in Africa: Molecular analysis of clinical specimens of suspected cases in Northern Ghana.Public health challenges · 2024Article
- Culture filtrate supplementation can be used to improveFrontiers in cellular and infection microbiology · 2022Article
- Utility of line probe assay in detecting drug resistance and the associated mutations in patients with extrapulmonary tuberculosis in Addis Ababa, Ethiopia.SAGE open medicine · 2022Article
- What pulmonologists need to know about extrapulmonary tuberculosis.Breathe (Sheffield, England) · 2020Review
- MTBDRplus for the rapid diagnosis of ocular tuberculosis and screening of drug resistance.Eye (London, England) · 2018Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDrug resistance in tuberculosis is a major public health challenge in developing countries. The limited data available on drug resistance in extra pulmonary tuberculosis stimulated us to design our study on anti-tuberculosis drug resistance pattern in cases of extra pulmonary tuberculosis in a tertiary referral hospital of North India. We performed Geno Type MTBDRplus assay in comparison with conventional drug susceptibility testing by proportion method to study the mutation patterns in rpoB, katG and inhA genes.
methodsA total of 510 extra pulmonary samples were included in this study. After the smear microscopy, all the specimens were subjected for culture on Lowenstein Jensen (LJ) media. Phenotypic drug susceptibility testing (DST) was performed on LJ media for all the MTB isolates and compared with the results of Geno Type MTBDRplus assay which was performed with the DNA isolated from the culture by conventional method.
resultsOf 510 specimens cultured, the total culture positivity obtained was 11.8% (60) encompassing 54 (10.6%) Mycobacterium tuberculosis and 6 (1.2%) non-tubercular mycobacteria (NTM). DST results by Geno Type MTBDRplus assay and solid culture methods were compared in 51 MTB isolates excluding the two Rif indeterminate and one invalid test. Geno Type MTBDRplus accurately identified 13 of 14 rifampicin-resistant strains, 14 of 15 isoniazid-resistant strains and 13 of 14 as multi drug resistant tuberculosis (MDR-TB) in comparison with conventional method. Sensitivity and specificity were 92.86% and 97.30% respectively for detection of RIF resistance, 93.33% and 94.44% respectively for detection of INH resistance, 92.86% and 97.30% respectively for detection of MDR-TB, while the overall concordance of Geno Type MTBDRplus assay with conventional DST was 94.11%. The turn-around time for performing Geno Type MTBDRplus assay test was 48 hours.
conclusionThe problem of MDR in extra pulmonary tuberculosis (EPTB) cannot be overlooked and due attention on patients should be given. Routine use of Geno Type MTBDRplus assay for the diagnosis of MDR-EPTB can substantially reduce the time between diagnosis and drug therapy. Culture along with Geno Type MTBDRplus assay could be a solution for rapid and accurate diagnosis of MDR-TB in low bacillary non sputum specimens.
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