患儿男 ,11岁 ,2 1ｋｇ ,术前各项生命体征、生化检查正常 ,无精神病、癫痫病史和家族史 ,无药物、食物过敏史 ,拟在“硬膜外阻滞辅用异丙酚镇静麻醉”下行“左股骨干骨囊肿清除植骨术”。术前肌注常规量的阿托品、苯巴比妥。硬外穿刺置管顺利 ,无血、液回流 ,首剂量用 1 3%利? Pediatric men, 11 years old, 21kg, all the vital signs before surgery, biochemical tests were normal, without psychosis, history of epilepsy and family history, no drugs, food allergy history, to be in the “epidural block with propofol Sedation anesthesia ”descending“ left femoral bone cyst removal bone grafting. ” Preoperative intramuscular injection of a conventional amount of atropine, phenobarbital. Hard external puncture catheter smoothly, without blood, fluid reflux, the first dose with 13% profit?