Objective To investigate the effects of assisted epidur al anesthesia with continuous infusions of remifentanil and midazolam on viscera trcation and oblivion in abdomen operation.

• 目的:探讨持续输注瑞芬太尼+咪唑安定辅助硬膜外麻醉对腹部手术中牵拉和遗忘的影响。