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Revista chilena de enfermedades respiratorias

versión On-line ISSN 0717-7348


PENA M, CARLOS et al. Bacteriological diagnosis of lung tuberculosis through bronchoscopy in HIV-infected patients. Rev. chil. enferm. respir. [online]. 2014, vol.30, n.1, pp.46-53. ISSN 0717-7348.

Tuberculosis can be lethal in HIV infected people. Lung is the organ most frequently involved, but clinical and radiological features are not typical of the disease. Diagnostic certification demands acid-fast bacillus microscopy and mycobacterial cultures on sputum. Some patients need bronchoscopy to obtain samples due to insufficient sputum. We reported a 9.1% diagnostic yield using bronchoscopy. Clinical suspicion before bronchoscopy had low positive predictive value of tuberculosis (10.8%). 47.8% of tuberculosis cases were not suspected before this procedure. Tuberculosis patients showed CD4 < 200 cells/mL (48.8 in average) and less use of ART (antiretroviral therapy). Cultures contributed to the diagnosis of 35% of tuberculosis cases but with a delay of 30 days. Induced sputum is a less costly alternative to bronchoscopy with a similar diagnostic yield.

Palabras clave : Tuberculosis; HIV; bronchoscopy.

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