预先镇痛对全子宫切除术后全麻恢复期病人意识恢复的影响

目的:观察预先镇痛是否影响术后病人意识恢复。方法:选择40例ASAI～Ⅲ级行全子宫切除术的病人,随机分为对照组(n=20)和预先镇痛组(n=20),所有病人均在静-吸复合麻醉下完成手术。预先镇痛组在手术开始前使用曲马多1.5mg/kg。两组术后入苏醒室,记录OAA/S镇静评分、VAS镇痛评分、BIS和术后寒颤和躁动的发生率。结果:①VAS,预先镇痛组优于对照组(P<0.05);②OAA/S评分和BIS,在5min和10min两个时间点,预先镇痛组低于对照组(P<0.05);③术后寒颤和躁动的发生率,预先镇痛组明显低于对照组。结论:预先镇痛能够使患者的意识恢复程度有一定程度的延长,但不会造成苏醒延迟。

Effect of preemptive analgesia on recovering depth of patient's awareness after complete hysterectomy under general anesthesia

Objective:To observe whether preemptive analgesia affect recovering degree of awareness in postoperative patients.Methods:Forty parients for complete hysterectomy were randomly divided into control group(n=20)and preemptive analgesia group(n=20).All patients had received the operations under general anesthesia.Before operation,patients in the preemptive analgesia group were given tramadol 1.5 mg/kg intravenously.After operation,all patients were transported into recovering room.OAA/S sedation Score,VAS,bispectral(BIS)and ratio of postoperative shaking chill and harass were recorded.Results:①VAS:preemptive analgesia group was much better than control group(P<0.05);②OAA/S and BIS were significantly lower in preemptive analgesia group than that of control group at 5 and 10 min after extubation;③The ratio of postoperative shaking chill and harass were also significantly lower in preemptive analgesia group than that in control group. Conclusion:Preemptive analgesia,to some extent,affects the awareness after general anesthesia,but it can`t cause awareness delay.