目的探讨0.2%罗哌卡因小儿骶管阻滞的麻醉效果及安全性。方法患儿进入手术室基础麻醉后,R组注入0.2%罗哌卡因1ml/kg,B组注入0.2%布比卡因1ml/kg,术中泵注丙泊酚3mg/(kg.h),再依据需要,间断静脉推注氯胺酮维持麻醉,观察两组麻醉效果、辅助氯胺酮用量、术毕清醒时间及围麻醉期不良反应。结果两组麻醉效果相似,氯胺酮用量、术毕清醒时间及围麻醉期不良反应两组比较亦差异无统计学意义。结论0.2%罗哌卡因用于小儿骶管阻滞麻醉安全有效,与布比卡因效果相似。 Objective To investigate the anesthesia and safety of caudal block of 0.2% ropivacaine in children. Methods After the patients entered the operating room, anesthesia was given in group R, 0.2% ropivacaine 1ml / kg and 0.2% bupivacaine 1ml / kg in group R, propofol 3mg / (kg.h) , And then according to the need, intermittent intravenous ketamine to maintain anesthesia, anesthesia were observed in two groups, supporting the amount of ketamine, awake surgery time and perioperative narcotic side effects. Results The anesthesia effects of the two groups were similar. There was no significant difference between the two groups in ketamine dosage, awake operation time and side anesthesia. Conclusion 0.2% ropivacaine is safe and effective for pediatric caudal block anesthesia, similar to bupivacaine.