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Effects of Dexmedetomidine on Cardiovascular Responses to Tracheal Extubation after General Anesthesia for Laparoscopic Panhysterectomy
Author(s): 
Pages: 176-178
Year: Issue:  2
Journal: Chinese Journal of Clinical Medicine

Keyword:  DexmedetomidineTracheal extubationCardiovascuar responses;
Abstract: 目的:观察右美托咪定(dexmedetomidine,DEX)对腹腔镜下全子宫切除术患者全麻气管拔管期心血管应激反应及苏醒的影响.方法:将60例择期行腹腔镜下全子宫切除术患者(ASA Ⅰ~Ⅱ级)随机分为DEX组和对照组,每组30例.气管拔管前10 min,DEX组静脉滴注DEX 0.3 μg/kg;对照组静脉滴注0.9%氯化钠液10 mL.观察麻醉前、气管拔管前(1 min)、气管拔管时、气管拔管后(1 min、5 min、10 min)的平均动脉压(mean arterial pressure,MAP)、心率(heart rate,HR);比较2组患者自主呼吸恢复时间、苏醒时间、气管拔管时间以及气管拔管期不良反应.结果:对照组MAP和HR在气管拔管前、气管拔管时均升高,且明显高于同期DEX组(P<0.05);DEX组MAP和HR在气管拔管后5 min、10 min时均下降,且明显低于同期对照组(P<0.05).DEX组MAP和HR在气管拔管前、气管拔管时及气管拔管后1 min与麻醉前比较,差异无统计学意义(P>0.05).两组患者呼吸恢复时间、苏醒时间、气管拔管时间差异无统计学意义(P<0.05);DEX组气管拔管期不良反应率明显低于对照组(P<0.05).结论:DEX能有效抑制腹腔镜下全子宫切除术患者气管拔管期的心血管应激反应,而且对患者的苏醒和气管拔管时间影响甚少.
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