急性上消化道出血病死率高达10%左右.最近十几年来,诊断治疗方法有很大改观。出血部位和病因诊断紧急内窥镜检查镜检距出血时间的长短是影响诊断率的主要因素之一,出血24～48小时后,最初出血的病灶可能 Acute upper gastrointestinal bleeding mortality rate as high as about 10% .Recent decade, the diagnosis and treatment methods have greatly improved. Bleeding site and etiological diagnosis Emergency endoscopy Insufficient bleeding time is the impact of the diagnosis rate of one of the main factors, bleeding 24 to 48 hours after the initial bleeding may be the lesion may