2014
DOI: 10.17843/rpmesp.2012.291.314
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Prueba molecular genotype® MTBDRplus, una alternativa para la detección rápida de tuberculosis multidrogorresistente

Abstract: RESUMENLa prueba molecular Genotype®MTBDRplus, es un método que permite identificar las mutaciones más frecuentes asociadas con la resistencia a las drogas antituberculosas de primera línea: isoniacida (INH) y rifampicina (RIf). El objetivo de este estudio fue evaluar el desempeño de la prueba molecular con cultivos y muestras de esputo con baciloscopía positiva. Se evaluó 95 cultivos y 100 esputos con perfiles de resistencia previamente determinados por el método de referencia "proporciones agar en placa" (AP… Show more

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Cited by 7 publications
(20 citation statements)
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“…In our study, both susceptible and resistant, mainly MDR, M. tuberculosis strains were evaluated; unfortunately, only a limited number of strains resistant to second-line drugs were evaluated. We found the performance of the GenoType tests in Colombia to be similar to or even better than those described in studies elsewhere, like in Mexico, Brazil, Peru, Chile, Bolivia, France, Italy, Turkey, Spain, Vietnam, the Russian Federation, Ethiopia, and China (4,(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23). In general, sensitivity, specificity, positive and negative predictive values, and concordance with phenotypic DST support the utility of these tests for the screening of resistance to first-and second-line antituberculosis drugs in our country.…”
Section: Discussionsupporting
confidence: 82%
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“…In our study, both susceptible and resistant, mainly MDR, M. tuberculosis strains were evaluated; unfortunately, only a limited number of strains resistant to second-line drugs were evaluated. We found the performance of the GenoType tests in Colombia to be similar to or even better than those described in studies elsewhere, like in Mexico, Brazil, Peru, Chile, Bolivia, France, Italy, Turkey, Spain, Vietnam, the Russian Federation, Ethiopia, and China (4,(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23). In general, sensitivity, specificity, positive and negative predictive values, and concordance with phenotypic DST support the utility of these tests for the screening of resistance to first-and second-line antituberculosis drugs in our country.…”
Section: Discussionsupporting
confidence: 82%
“…Specifically, the frequency of the katG MUT S315T1 in Latin America varied, with 52% in Mexico, 61.9% in Brazil, 71.2% in Peru, and 88% in Colombia (12)(13)(14). In comparison, the frequency in some countries on other continents was 65% in France, 66.5% in Italy, 73% in Turkey, 87% in Spain, 88% in Vietnam, 94% in the Russian Federation, and 94% in Ethiopia (17)(18)(19)(20)(21)(22)(23).…”
Section: Discussionmentioning
confidence: 99%
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“…En la región de las Américas, Chile, Argentina y Perú, reportan frecuencias entre 56 y 67 % (14,15). En Colombia, Ferro, et al, registraron una frecuencia de 64 % para esta misma mutación en aislamientos provenientes de la región del Valle del Cauca (16).…”
Section: Discussionunclassified
“…Asimismo, se presenta el incremento de las pruebas de sensibilidad rápida (PSR) para detectar resistencia a H y R por los métodos Genotype MTBDRplus (12) nitrato reductasa (Griess) y MODS (Microscopic Observation Drug Susceptibility), este último desarrollado en el Perú por Caviedes et al (13) . El incremento significativo de las PSR en el Perú, de 2636 pruebas en el 2008 a 26 500 en el 2015, ha contribuido con la detección precoz de un mayor número de casos de TB DR y en el incremento de pacientes que han tenido acceso oportuno a medicamentos de segunda línea.…”
Section: La Tb Resistente a Medicamentosunclassified