为了使病人在最短的时间，以最佳的麻醉状态进入纤维支气管镜检查，将２％利多卡因氧气喷雾麻醉和１％的卡因喉头喷雾麻醉效果进行了对比。２％利多卡因氧气喷雾麻醉时间一般３～５ｍｉｎ（有吸烟史者５ｍｉｎ），有效率９６．２％；１％地卡因喉头喷雾麻醉时间一般２０～３０ｍｉｎ，有效率６０％，二者比较统计学处理ｔ＝４．０２，Ｐ＜０．００１，有极显著差异。为此氧气喷雾麻醉作为纤支镜检查的首选麻醉方法 In order to allow the patient to enter the bronchofibroscope at optimal anesthesia in the shortest possible time, the effects of 2% lidocaine oxygen spray anesthesia and 1% cajan laryngeal spray were compared. 2% lidocaine oxygen spray anesthesia time is generally 3 ~ 5min (with a history of smoking 5min), an effective rate of 96.2%; 1% tetracaine laryngeal anesthesia time is generally 20 ~ 30min, the efficiency of 60%, both compared Statistical analysis t = 4.02, P <0.001, a very significant difference. Oxygen spray anesthesia for this bronchoscopy the preferred method of anesthesia