Abstract: Objective To explore the clinical value of bronchofiberscope and catheter intervention on previously retreated pulmonary tuberculosis. Methods158 previously retreated pulmonary tuberculosis were treated by injecting isoniazid and streptomycin through bronchofiberscope plus routine chemotherapy treatment, 156 controls were on treated by chemotherapy only. ResultsAt the end of the treatment, the sputum conversion rate was 97%, radiographic improvement rate was 90% and cavity closing rate was 48% in the treatment group, all of which were higher than that in the controls (62%,58% and 10% respectively)(P＜0.01～0.05). No complication and obvious side effects were observed. ConclusionThe effect of bronchofiberscope and catheter intervention plus chemotherapy is better than only chemotherapy on retreated pulmonary buberculosis.

Key words: Pulmonary tuberculosis/ therapy, Bronchofiberscope