alexa Bronchoscopic diagnostic procedures and microbiological examinations in proving endobronchial tuberculosis.
Immunology

Immunology

Journal of Clinical & Cellular Immunology

Author(s): imek A, Yapc , Babalk M, imek Z, Kolsuz M

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Abstract OBJECTIVE: To determine the proportional distribution of endobronchial tuberculosis (EBTB) subtypes and to evaluate the types of bronchoscopic diagnostic procedures that can prove granulomatous inflammation. METHODS: This was a retrospective study of 18 HIV-negative patients with biopsy-proven EBTB treated between 2010 and 2014. RESULTS: The most common EBTB subtypes, as classified by the bronchoscopic features, were tumorous and granular (in 22.2\% for both). Sputum smear microscopy was performed in 11 patients and was positive for AFB in 4 (36.3\%). Sputum culture was also performed in 11 patients and was positive for Mycobacterium tuberculosis in 10 (90.9\%). Smear microscopy of BAL fluid (BALF) was performed in 16 patients and was positive for AFB in 10 (62.5\%). Culture of BALF was also performed in 16 patients and was positive for M. tuberculosis in 15 (93.7\%). Culture of BALF was positive for M. tuberculosis in 93.7\% of the 16 patients tested. Among the 18 patients with EBTB, granulomatous inflammation was proven by the following bronchoscopic diagnostic procedures: bronchial mucosal biopsy, in 8 (44.4\%); bronchial brushing, in 7 (38.8\%); fine-needle aspiration biopsy, in 2 (11.1\%); and BAL, in 2 (11.1\%). Bronchial anthracofibrosis was observed in 5 (27.7\%) of the 18 cases evaluated. CONCLUSIONS: In our sample of EBTB patients, the most common subtypes were the tumorous and granular subtypes. We recommend that sputum samples and BALF samples be evaluated by smear microscopy for AFB and by culture for M. tuberculosis, which could increase the rates of early diagnosis of EBTB. We also recommend that bronchial brushing be employed together with other bronchoscopic diagnostic procedures in patients suspected of having EBTB. OBJETIVO: Determinar a distribuição proporcional dos subtipos de tuberculose endobrônquica (TBEB) e avaliar os tipos de procedimentos diagnósticos broncoscópicos que podem revelar inflamação granulomatosa. MÉTODOS: Este foi um estudo retrospectivo com 18 pacientes HIV negativos com TBEB comprovada por biópsia tratados entre 2010 e 2014. RESULTADOS: Os subtipos mais comuns de TBEB, classificados pelas características na broncoscopia, foram tumoral e granular (em 22,2\% para ambas) A baciloscopia de escarro foi realizada em 11 pacientes e foi positiva para BAAR em 4 (36,3\%). A cultura de escarro também foi realizada em 11 pacientes e foi positiva para Mycobacterium tuberculosis em 10 (90,9\%). A baciloscopia do LBA foi realizada em 16 pacientes e foi positiva para BAAR em 10 (62,5\%). A cultura do LBA foi também realizada em 16 pacientes e foi positiva para o M. tuberculosis em 15 (93,7\%). A cultura do LBA foi positiva para M. tuberculosis em 93,7\% dos 16 pacientes testados. Nos 18 pacientes com TBEB, a presença de inflamação granulomatosa foi comprovada pelos seguintes procedimentos diagnósticos broncoscópicos: biópsia da mucosa brônquica, em 8 (44,4\%); escovação brônquica, em 7 (38,8\%); punção aspirativa por agulha fina, em 2 (11,1\%); e LBA, em 2 (11,1\%). Antracose/fibrose brônquica foi observada em 5 (27,7\%) dos 18 casos avaliados. CONCLUSÕES: Em nossa amostra de pacientes com TBEB, os subtipos mais comuns foram o tumoral e o granular. Recomendamos que amostras de escarro e do LBA sejam avaliadas por baciloscopia para BAAR e cultura de M. tuberculosis, o que poderia aumentar as taxas de diagnóstico precoce de TBEB. Também recomendamos que a escovação brônquica seja empregada em conjunto com outros procedimentos diagnósticos broncoscópicos em pacientes com suspeita de TBEB. This article was published in J Bras Pneumol and referenced in Journal of Clinical & Cellular Immunology

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