Objective: To study the effect of continous epidural anesthesia with ropivacaine on transurethral vaporization prostatectomy and its cardiovascular reaction.

• 目的:观察罗哌卡因连续硬膜外麻醉下经尿道前列腺汽化术麻醉的效果及心血管反应,并与利多卡因和丁卡因的混合液进行比较。