Objective To observe the effects of epidural anaesthesia (EA) and general anaesthesia (GA) on the changes of plasma epinephrine (E) and norepinephrine (NE) during laparoscopic cholecystectomy (LC).

• 目的观察在硬膜外麻醉和全身麻醉下，腹腔镜胆囊切除术中血浆肾上腺素(E)和去甲肾上腺素(NE)的变化。