随着上消化道内窥镜的广泛使用,较少见的呼吸系并发症可以变得更为突出。本文对65例上消化道纤维内窥镜检查的病人分组加以研究。甲组(50例)采用利多卡因喉头喷雾和静脉注射安定作药物准备;乙组(15例)则仅给利多卡因喉头喷雾而不用安定。两组病人均在准备前一小时测量第一秒呼气肺活量(FEV_1)和用力呼气肺活量(FVC);药物准备后在检查前和内窥镜检查时分别取桡动脉血作O_2和CO_2分 With the widespread use of upper gastrointestinal endoscopy, less common respiratory complications can become more prominent. In this paper, 65 cases of upper gastrointestinal fiber endoscopy patients were studied. Group A (50 cases) was treated with lidocaine throat spray and intravenous injection for drug preparation; Group B (15 cases) was given only lidocaine throat spray without stability. Two groups of patients were measured one hour before preparation expiratory lung volume (FEV_1) and forced expiratory volume of vital capacity (FVC); after the preparation of drugs in the pre-examination and endoscopy were taken radial arterial blood as O_2 and CO_2