METHODS: Sixty patients undergoing abdominal hysterectomy were randomly into buprenorphine group (group B, n=30) and morphine group (group M, n = 30).

• 方法:60例妇科开腹子宫切除术病人术后随机分为丁丙诺啡组(B组,n=30)和吗啡组(M组,n=30),接受PCA治疗。