手背静脉注异丙酚疼痛发生率几乎达 10 0 %。异丙酚普遍用于门诊手术麻醉 ,不利因素是注射痛。本文研究利多卡因混注异丙酚减轻注射痛的最佳剂量。资料与方法ＡＳＡⅠ～Ⅱ级 81例成年门诊手术病人 ,随机分为三组(表 1)。方法 :2 2号套管针 ,置无显著差别的手背静脉 ,每 5秒 1ｍ The incidence of propofol pain on the back of the hand was almost 100%. Propofol is commonly used in outpatient surgery anesthesia, the downside is injection pain. In this paper, lidocaine mixed with propofol to reduce the best dose of injection pain. Materials and Methods 81 cases of adult outpatient ASA Ⅰ ~ Ⅱ patients were randomly divided into three groups (Table 1). Method: No.2 trocar, no significant difference between the back of the dorsal veins, 1m every 5 seconds