Please use this identifier to cite or link to this item:
https://www.arca.fiocruz.br/handle/icict/66963
OUTCOMES FROM PATIENTS WITH PRESUMED DRUG RESISTANT TUBERCULOSIS IN FIVE REFERENCE CENTERS IN BRAZIL
Author
Affilliation
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil / Helio Fraga Reference Center - ENSP -Fiocruz, Rio de Janeiro, Brazil
Messejana Hospital -State Secretary of Health, Fortaleza, Ceará, Brazil
Helio Fraga Reference Center - ENSP -Fiocruz, Rio de Janeiro, Brazil
Ary Parreiras Institute - State Secretary of Health, Rio de Janeiro, Brazil
Sanatório Partenon Hospital, State Secretary of Health, Porto Alegre, Rio Grande do Sul, Brazil
Clemente Ferreira Institute, State Secretary of Health, Sao Paulo, Brazil
Helio Fraga Reference Center - ENSP -Fiocruz, Rio de Janeiro, Brazil
International Union Against Tuberculosis and Lung Disease, Paris, France
MRC Clinical Trials Unit, London, United Kingdom
Liverpool School of Tropical Medicine, Liverpool, United Kingdom
International Union Against Tuberculosis and Lung Disease, Paris, France
Liverpool School of Tropical Medicine, Liverpool, United Kingdom
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil
Fundação Oswaldo Cruz. Centro de Desenvolvimento Tecnológico em Saúde. Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças de Populações Negligenciadas. Rio de Janeiro, RJ, Brasil.
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil / Helio Fraga Reference Center - ENSP -Fiocruz, Rio de Janeiro, Brazil
Messejana Hospital -State Secretary of Health, Fortaleza, Ceará, Brazil
Helio Fraga Reference Center - ENSP -Fiocruz, Rio de Janeiro, Brazil
Ary Parreiras Institute - State Secretary of Health, Rio de Janeiro, Brazil
Sanatório Partenon Hospital, State Secretary of Health, Porto Alegre, Rio Grande do Sul, Brazil
Clemente Ferreira Institute, State Secretary of Health, Sao Paulo, Brazil
Helio Fraga Reference Center - ENSP -Fiocruz, Rio de Janeiro, Brazil
International Union Against Tuberculosis and Lung Disease, Paris, France
MRC Clinical Trials Unit, London, United Kingdom
Liverpool School of Tropical Medicine, Liverpool, United Kingdom
International Union Against Tuberculosis and Lung Disease, Paris, France
Liverpool School of Tropical Medicine, Liverpool, United Kingdom
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil
Federal University of Rio de Janeiro, Tuberculosis Academic Program, Medical School and Hospital Complex HUCFF-IDT, Rio de Janeiro, Brazil
Fundação Oswaldo Cruz. Centro de Desenvolvimento Tecnológico em Saúde. Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças de Populações Negligenciadas. Rio de Janeiro, RJ, Brasil.
Abstract in Portuguese
Contexto: A implementação do teste rápido de sensibilidade a medicamentos (TSD) é uma prioridade global atual para o controle da TB. No entanto, há poucos dados sobre os resultados relevantes para o paciente para o diagnóstico presuntivo de tuberculose resistente a medicamentos (TB-DR) avaliados em condições de campo em países com alta carga. Métodos: Estudo observacional de pacientes com TB-DR encaminhados por unidades de saúde primárias e secundárias. Centros de referência para TB que abordam TB-DR em cinco cidades do Brasil. Pacientes com 18 anos ou mais eram elegíveis se TB-DR, resultados positivos de cultura para Mycobacterium tuberculosis e, se nenhum resultado de TSD anterior de outro laboratório fosse usado por um médico para iniciar o tratamento anti-TB. As medidas de resultados foram o tempo médio da triagem até o início do tratamento anti-TB apropriado, o tratamento empírico e os resultados do tratamento. Resultados: Entre 16 de fevereiro de 2011 e 15 de fevereiro de 2012, entre 175 casos de TB-DR, 110 (63,0%) casos confirmados de TB com resultados de TSD foram incluídos. Entre os participantes do estudo, 72 (65,5%) eram do sexo masculino e 62 (56,4%) tinham entre 26 e 45 anos. Na triagem, o tratamento empírico foi administrado a 106 (96,0%) indivíduos. Entre eles, 85 foram tratados com medicamentos de primeira linha e 21 com medicamentos de segunda linha. O tempo mediano para os resultados do DST foi de 69,5 [interquartil-IQR: 35,7–111,0] dias e, para iniciar o tratamento anti-TB apropriado, o tempo mediano foi de 1,0 (IQR: 0–41,2) dias. Entre 95 pacientes que foram acompanhados durante o primeiro período de 6 meses, 24 (25,3%; IC: 17,5%–34,9%) mudaram ou iniciaram o tratamento após os resultados do DST: 16/29 casos de MDRTB, 5/21 de DR-TB e 3/45 de DS-TB. Comparando o resultado do tratamento com os casos de DS-TB, a MDRTB teve maiores proporções de mudança ou início do tratamento após os resultados do DST (p = 0,01) e resultados favoráveis (p = 0,07). Conclusões: Este estudo mostra uma alta taxa de tratamento empírico e longo atraso para os resultados do DST. Estratégias para acelerar a detecção e o tratamento precoce da TB resistente a medicamentos devem ser priorizadas.
Abstract
Background: The implementation of rapid drug susceptibility testing (DST) is a current global priority for TB control. However, data are scarce on patient-relevant outcomes for presumptive diagnosis of drug-resistant tuberculosis (pDR-TB) evaluated under field conditions in high burden countries. Methods: Observational study of pDR-TB patients referred by primary and secondary health units. TB reference centers addressing DR-TB in five cities in Brazil. Patients age 18 years and older were eligible if pDR-TB, culture positive results for Mycobacterium tuberculosis and, if no prior DST results from another laboratory were used by a physician to start anti-TB treatment. The outcome measures were median time from triage to initiating appropriate anti-TB treatment, empirical treatment and, the treatment outcomes. Results: Between February,16th, 2011 and February, 15th, 2012, among 175 pDR TB cases, 110 (63.0%) confirmed TB cases with DST results were enrolled. Among study participants, 72 (65.5%) were male and 62 (56.4%) aged 26 to 45 years. At triage, empirical treatment was given to 106 (96.0%) subjects. Among those, 85 were treated with first line drugs and 21 with second line. Median time for DST results was 69.5 [interquartile- IQR: 35.7–111.0] days and, for initiating appropriate anti-TB treatment, the median time was 1.0 (IQR: 0–41.2) days. Among 95 patients that were followed-up during the first 6 month period, 24 (25.3%; IC: 17.5%–34.9%) changed or initiated the treatment after DST results: 16/29 MDRTB, 5/21 DR-TB and 3/45 DS-TB cases. Comparing the treatment outcome to DS-TB cases, MDRTB had higher proportions changing or initiating treatment after DST results (p = 0.01) and favorable outcomes (p = 0.07). Conclusions: This study shows a high rate of empirical treatment and long delay for DST results. Strategies to speed up the detection and early treatment of drug resistant TB should be prioritized.
Share