上消化道大出血是临床上常见的急危重症之一,以发病突然、发展迅速、病死率高为特点,常可威胁患者的生命。急诊胃镜检查已成为明确诊断和抢救治疗上消化道出血的重要技术之一。由于患者大多病情危重或病因未明,生命体征不稳定,增加了检查的风险。周密的术前准备及默契的医护配 Upper gastrointestinal bleeding is one of the most common and critically ill patients in clinical practice. It is characterized by sudden onset, rapid development and high case fatality rate, and often can threaten the life of patients. Emergency gastroscopy has become a clear diagnosis and rescue treatment of upper gastrointestinal bleeding is one of the important technologies. As most of the patients are critically ill or the etiology is unknown, the vital signs are not stable, which increases the risk of examination. Careful preoperative preparation and understanding of the health care with