Utility of GenoType MTBDRplus assay in rapid diagnosis of multidrug resistant tuberculosis at a tertiary care centre in India.
Indian J Med Microbiol
; 2012 Jan-Mar; 30(1): 58-63
Article
em En
| IMSEAR
| ID: sea-143895
Purpose: Molecular methods which allow rapid detection of tuberculosis as well as drug resistance directly from clinical samples have become the most popular diagnostic methodology with the emergence of multidrug resistant tuberculosis. The aim of the present study was to evaluate the performance of a line probe assay, GenoType MTBDRplus for the rapid detection of Mycobacterium tuberculosis and mutations causing rifampicin and INH resistance directly in smear positive pulmonary specimens and also in M. tuberculosis isolates grown from various clinical specimens. Materials and Methods: The MTBDRplus assay was done directly on 37 smear positive pulmonary specimens and also on 69 M. tuberculosis isolates obtained by rapid automated culture using Bact/Alert 3D. The results were compared with phenotypic drug susceptibility testing (1% proportion method) using Bact/Alert 3D. Results: The sensitivity and specificity for detection of resistance to rifampicin was 100% and 97.3%, and to INH was 91.9% and 98.4%, respectively, in comparison with the phenotypic drug susceptibility testing. Conclusion : MTBDRplus assay had good sensitivity and specificity with turn around time of less than 48 hours. It may be a useful tool for rapid detection of multidrug resistant tuberculosis at a tertiary care centre.
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Texto completo:
1
Índice:
IMSEAR
Assunto principal:
Rifampina
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Humanos
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DNA Bacteriano
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Técnicas Bacteriológicas
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Sensibilidade e Especificidade
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Tuberculose Resistente a Múltiplos Medicamentos
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Mutação de Sentido Incorreto
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Técnicas de Diagnóstico Molecular
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Farmacorresistência Bacteriana Múltipla
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Genótipo
Tipo de estudo:
Diagnostic_studies
País/Região como assunto:
Asia
Idioma:
En
Revista:
Indian J Med Microbiol
Assunto da revista:
Microbiology
Ano de publicação:
2012
Tipo de documento:
Article