该文通过８２例经纤支镜活检、刷片证实为支气管内肿瘤病人，观察其应用肾上腺素控制纤支镜活检后病灶出血的时机和效果间的关系。结果提示活检前预防性用肾上腺素收缩被活检病灶血管，对减轻活检所致出血有较好的效果，且为多次镜下活检创造了条件，效果优于活检出血时再用肾上腺素止血（明显出血率：２６．３％比６１．４％，Ｐ＜０．０１）。而且活检前支气管病灶局部用肾上腺素导致脉率增快的副作用也相对要小 This article through 82 cases of biopsy by fiberoptic bronchoscopy, brush piece proved to be patients with intrabronchial tumors, observation of epinephrine in the control of fibrosis biopsy after the focus of the timing and effect of bleeding. The results suggest that prophylactic adrenaline prophylaxis before biopsy is biopsy lesions blood vessels, to reduce bleeding caused by biopsy has a good effect, and for multiple biopsies to create the conditions, the effect is better than biopsy bleeding and then epinephrine to stop bleeding ( Significant bleeding rate: 26.3% vs 61.4%, P <0.01). And the side effects of local epinephrine leading to increased pulse rate before bronchial lesion are relatively small