科研之友
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摘要
we evaluated the diagnostic yield of fiberoptic bronchoscopy for the diagnosis of smear-negative pulmonary tuberculosis in patients treated at a referral hospital in lima, peru. of the 611 patients who underwent the procedure, 140 (23%) were diagnosed with tuberculosis based on the analysis of bal samples. being young and being male were significantly associated with positive cultures. in addition, 287 patients underwent post-bronchoscopic sputum smear testing for afb, the results of which increased the diagnostic yield by 22% over that obtained through the analysis of bal samples alone. we conclude that the analysis of bal samples and post-bronchoscopic sputum samples provides a high diagnostic yield in smear-negative patients suspected of having pulmonary tuberculosis.
