消化性溃疡是上消化道出血首要病因 ,而十二指肠溃疡出血发生率是胃溃疡的二倍 ,并且出血量大 ,易复发出血。为提高临床疗效 ,对我院 1997～ 1998年应用奥美拉唑与西咪替丁治疗72例球部溃疡出血患者 ,疗效分析如下。1　临床资料1.1　病例选择　 48小时内有上消化道出血临床症状 Peptic ulcer is the leading cause of upper gastrointestinal bleeding, and the incidence of duodenal ulcer bleeding is twice as large as gastric ulcer, and bleeding, easy to relapse bleeding. To improve clinical efficacy of our hospital from 1997 to 1998, omeprazole and cimetidine treatment of 72 cases of ulcerated patients with ulceration, the curative effect is as follows. 1 clinical data 1.1 case selection within 48 hours of upper gastrointestinal bleeding clinical symptoms