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Revista Portuguesa de Pneumologia
Article . 2007
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A tuberculose multirresistente e a rainha vermelha â A rapidez do diagnóstico é decisiva

Authors: João Costeira; Jaime Pina;

A tuberculose multirresistente e a rainha vermelha â A rapidez do diagnóstico é decisiva

Abstract

Resumo: A tuberculose multirresistente é uma ameaça importante ao controlo da tuberculose.Neste sentido, é fundamental o diagnóstico precoce da TBMR para adoptar as medidas mais adequadas. Os métodos de detecção da resistência aos antibacilares baseados na avaliação das determinantes genéticas (métodos genotípicos) têm a vantagem, em relação aos métodos clássicos (fenotípicos), de serem mais céleres, poderem ser aplicados directamente na amostra clínica e de identificarem simultaneamente o Myco-bacterium tuberculosis complex.A análise dos dados dos doentes internados no Serviço de Pneumologia 2 do Hospital de Pulido Valente mostrou uma significativa prevalência de TBMR (10,3%). Revelou, também, que em 34,1% dos doentes com TBMR a multirresistência não foi identificada, tendo sido a mortalidade nesses doentes de 31% versus 18,4% nos doentes com o perfil de resistências previamente conhecido. Estes valores são piores nos doentes com TBMR+SIDA, que têm uma mortalidade de 50% versus 15%, respectivamente.Para uma rápida identificação das resistências nos doentes internados no Serviço de Pneumologia 2 do HPV, foi avaliado o teste INNO-LIPA Rif.TB para detecção da resistência à RMP como marcador de multirresistência. Os resultados do teste, efectuado em 113 amostras, mostraram elevadas taxas de sensibilidade (91,6%), especificidade (98%), valor preditivo positivo (84,6%) e valor preditivo negativo (99%).A demora média para obter os resultados foi de 7,6 dias para o teste genotípico versus 23,4 dias para o teste fenotípico (BACTEC MGIT 960).Actualmente, o teste INNO-LIPA Rif. TB é aplicado em todos os doentes internados com tuberculose bacilífera sem perfil de resistências previamente conhecido, com bons resultados.Rev Port Pneumol 2007; XIII (6): 869-877 Abstract: The multi-drug resistant Tuberculosis (MDRTB) is a huge menace to Tuberculosis control.The early detection of MDRTB is essential to best appropriate measures.The detection methods for drug resistance based in evaluation of the genetic determinants (genotypic methods), instead of phenotypic methods, allows for faster results, the possibility of direct application in clinical samples and simultaneous identification of Mycobacterium tuberculosis complex.The inpatients data analysis in the âServiço de Pneumologia 2 do Hospital Pulido Valenteâ, showed a high prevalence of MDRTB (10.3%). In 34.1% of the MDRTB patients the multi-drug resistance was not been identified, with a mortality ratio in this cases of 31% versus 18.4% in the subset of patients with resistance previously identified. Moreover the mortality ratio was worst in MDRTB/AIDS patients with 50% versus 15%, respectively.Targeting for rapid drug resistance detection, in hospitalized patients at âServiço de Pneumologia 2 do Hospital Pulido Valenteâ, the test INNO-LIPA Rif.TB, to identify the rifampicin resistance as a marker of multi-drug resistance, was evaluated.The test was performed in 113 samples and had a high ratio of sensitivity (91.6%), specificity (98%), positive predictive value (84, 6%) and negative predictive value (99%).Time to obtain the results was 7.6 days for the genotypic test versus 23.4 days to the phenotypic test (BACTEC MGIT 960).The INNO-LIPA Rif.TB test is, now, performed in every patient with smear-positive Tuberculosis with no previous knows resistance profile, with good outcome.Rev Port Pneumol 2007; XIII (6): 869-877 Palavras-chave: Tuberculose multirresistente, método genotípico, sensibilidade, especificidade, Key-words: Multi-drug resistant tuberculosis, genotypic method, sensitivity, specificity

Keywords

Diseases of the respiratory system, RC705-779

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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