右美托咪啶对七氟醚麻醉患儿麻醉恢复期躁动的影响

目的 评价右美托咪啶对七氟醚麻醉患儿麻醉恢复期躁动的影响.方法 择期全麻下行耳鼻喉科手术患儿300例,ASA分级Ⅰ或Ⅱ级,性别不限,年龄4～7岁,体重16～30 kg,采用随机数字表法,将其随机分为2组(n=150):对照组(C组)和右美托咪啶组(D组).D组麻醉诱导前经10min静脉输注0.5μg/kg右美托咪啶20 ml,C组输注生理盐水20 ml.给药结束后5 min时吸入8%七氟醚麻醉诱导,气管插管后行机械通气.吸人2%～ 3%七氟醚维持麻醉,术中维持BIS值40～60.记录麻醉恢复时间和术后2 h内躁动的发生情况.结果 与C组比较,D组麻醉恢复时间差异无统计学意义(P>0.05),躁动发生率降低(P<0.05).结论 右美托咪啶可降低七氟醚麻醉患儿麻醉恢复期躁动的发生.

Abstract：

Objective To investigate the effect of dexmedetomidine on agitation during recovery from sevoflurane anesthesia in children. Methods Three hundred ASA Ⅰ or Ⅱ children, aged 4-7 yr, weighing 16-30kg, scheduled for elective ear-nose-throat operation under general anesthesia, were randomly divided into 2 groups ( n = 150 each) : control group (group C) and dexmedetomidine group (group D) . Dexmedetomidine 0.5 μg/kg in 20 ml was infused intravenously over 10 min before anesthesia induction in group D, while equal volume of normal Saline was infused in group C. Anesthesia was induced with inhalation of 8 % sevoflurane 5 min after the end of administration . The children were tracheal incubated and mechanically ventilated. Anesthesia was maintained with inhalation of 2 % -3 % sevoflurane. BIS was maintained at 40-60 during operation. The recovery time and agitation within 2 h after operation were recorded. Results There was no significant difference in the recovery time between the two groups ( P > 0.05) . The incidence of agitation was significantly lower in group D than in group C ( P <0.05 ) . Conclusion Dexmedetomidine can reduce the occurrence of agitation during recovery from sevoflurane anesthesia in children.

Effect of dexmedetomidine on agitation during recovery from sevoflurane anesthesia in children

Objective To investigate the effect of dexmedetomidine on agitation during recovery from sevoflurane anesthesia in children. Methods Three hundred ASA Ⅰ or Ⅱ children, aged 4-7 yr, weighing 16-30kg, scheduled for elective ear-nose-throat operation under general anesthesia, were randomly divided into 2 groups ( n = 150 each) : control group (group C) and dexmedetomidine group (group D) . Dexmedetomidine 0.5 μg/kg in 20 ml was infused intravenously over 10 min before anesthesia induction in group D, while equal volume of normal Saline was infused in group C. Anesthesia was induced with inhalation of 8 % sevoflurane 5 min after the end of administration . The children were tracheal incubated and mechanically ventilated. Anesthesia was maintained with inhalation of 2 % -3 % sevoflurane. BIS was maintained at 40-60 during operation. The recovery time and agitation within 2 h after operation were recorded. Results There was no significant difference in the recovery time between the two groups ( P > 0.05) . The incidence of agitation was significantly lower in group D than in group C ( P <0.05 ) . Conclusion Dexmedetomidine can reduce the occurrence of agitation during recovery from sevoflurane anesthesia in children.