右美托咪定对肥胖患者苏醒期的影响
2017-10-12肖甄男龙波于砾淳白茹冰
肖甄男,龙波,于砾淳,白茹冰
(1. 中国医科大学附属盛京医院麻醉科,沈阳 110004; 2. 辽宁省肿瘤医院麻醉科,沈阳 110042;3. 中国医科大学附属第四医院第四普通外科,沈阳 110032)
右美托咪定对肥胖患者苏醒期的影响
肖甄男1,龙波1,于砾淳2,白茹冰3
(1. 中国医科大学附属盛京医院麻醉科,沈阳 110004; 2. 辽宁省肿瘤医院麻醉科,沈阳 110042;3. 中国医科大学附属第四医院第四普通外科,沈阳 110032)
目的探讨右美托咪定0.4 μ g·kg-1·h-1对肥胖患者腹腔镜手术苏醒期的影响。方法选择择期行腹腔镜下Roux-en-Y吻合术且体质量指数(BMI)≥30 kg/m2的患者30例,随机分为右美托咪定组(D组)和对照组(C组),每组15例。D组于手术开始时泵注右美托咪定0.4 μ g·kg-1·h-1,手术结束前30 min停止泵注;C组同时泵注等量的生理盐水。2组采用相同的麻醉诱导及维持方案。记录患者各时点的心率(HR),平均动脉压(MBP),心率变异性指标:低频率(LF)、高频率(HF)、LF/HF,拔管时间,拔管时镇静躁动评分(SAS),苏醒期躁动评级及不良事件的发生情况。结果C组苏醒期HR、MBP及LF/HF均较基础值高,且均高于D组(P <0.05);C组在拔管前及拔管时LF均高于D组(P < 0.05);D组苏醒期MBP较基础值低(P < 0.05),且拔管时SAS、苏醒期躁动评级均低于C组(P < 0.05);2组间HF及拔管时间无统计学差异(P > 0.05)。结论给予肥胖患者术中泵注盐酸右美托咪定0.4 μ g·kg-1·h-1不仅不延长苏醒拔管时间,还能提高苏醒期质量。
右美托咪定; 肥胖; 心率变异性; 苏醒期
Abstract ObjectiveTo explore the effect of intravenous dexmedetomidine (0.4 μ g·kg-1·h-1) on the recovery period in obese patients undergoing laparoscopic Roux-en-Y surgery.MethodsThirty patients (ASA ⅠtoⅡ,body mass index ≥30 kg/m2) presenting for laparoscopic Roux-en-Y surgery under general anesthesia were randomly assigned 1∶1 to the dexmedetomidine group (group D) or control group(group C). Dexmedetomidine was infused at 0.4 μ g·kg-1·h-1at the beginning of the operation and was discontinued 30 minutes before the end of the surgery in group D. Simultaneously,normal saline was infused at 0.4 μ g·kg-1·h-1in group C. The two groups received the same method of induction and maintenance anesthesia. The intraoperative variables measured included heart rate (HR),mean blood pressure(MBP),low frequency (LF),high frequency (HF),LF/HF ratio extubation time,Silverman-Andersen score (SAS) at the time of extubation,level of agitation during the recovery period,and adverse events.ResultsHR,MBP,and LF/HF of group C were higher than the baseline values and that of group D (P < 0.05) during the recovery period. LF was higher in group C those in group D (P < 0.05) during the recovery period. MBP was lower than the baseline values (P < 0.05) and SAS at the time of extubation and level of agitation during the anesthesia recovery period were lower in group D (P < 0.05) than in group C. There was no significant difference in HF and extubation time between the two groups (P > 0.05).ConclusionInfusion of dexmedetomidine during anesthesia in obese patients may improve the quality of emergence from anesthesia without increasing the duration of the anesthesia recovery period.
Keywordsdexmedetomidine; obesity; heart rate variability; anesthesia recovery period
肥胖患者多伴有高血压、糖尿病等相关疾病, 尤其是病态肥胖患者约77%伴有睡眠呼吸暂停[1-2]。肥胖可引起交感迷走神经系统过度激活[3],使其较同标准体质量患者在围术期更易发生循环的剧烈波动。……
