吗啡术后镇痛已广泛用于临床 ,其疗效确切 ,持续时间长 ,但也存在一些副作用 ;为了既获得良好效果 ,又将不良反应发生率减少到最低程度 ,将腹部手术分为上、下腹部两组给予不同剂量的吗啡进行术后镇痛对比性研究。１资料与方法择期腹部手术２４０例 ,ＡＳＡⅠ～Ⅱ级 ,男５１例 Morphine postoperative analgesia has been widely used in clinical, its efficacy is exact, long duration, but there are also some side effects; in order to achieve both good results, but also to minimize the incidence of adverse reactions, the abdominal surgery is divided into upper and lower The two groups were given different doses of morphine for postoperative analgesia comparative study. 1 Materials and Methods Elective abdominal surgery in 240 cases, ASA Ⅰ ~ Ⅱ level, male 51 cases