[摘要]目的 研究小剂量盐酸右美托咪定在全身麻醉苏醒拔管期的应用效果。方法 选取我院2016年8月～2017年12月收治的90例全身麻醉手术患者作为研究对象，将其随机分为对照组(45例)、观察组(45例)。观察组采用小剂量盐酸右美托咪定，对照组采用生理盐水。比较两组的血压、心率变化，苏醒情况。结果 两组患者麻醉前、麻醉后10 min、拔管时的血压、心率比较，差异无统计学意义(P>0.05)。观察组患者拔管时的血压、心率均低于对照组，差异有统计学意义(P<0.05)。两组患者的苏醒情况相关指标比较，差异无统计学意义(P>0.05)。结论 小剂量盐酸右美托咪定在全身麻醉苏醒拔管期具有重要作用，能改善其血压和心率，值得研究。

    [关键词]小剂量;盐酸右美托咪定;全身麻醉;苏醒拔管期

    [中图分类号] R614.2+4 [文献标识码] A [文章编号] 1674-4721(2019)1(b)-0186-03

    [Abstract] Objective To study the application effect of low dose Dexmedetomidine Hydrochloride in resuscitation and extubation period of general anesthesia. Methods All of 90 patients with general anesthesia and operation treated in our hospital from August 2016 to December 2017 were selected as study subjects. They were randomly divided into the control group (45 cases) and observation group (45 cases). The observation group was given the low dose Dexmedetomidine Hydrochloride while the control group was given normal saline. The change of blood pressure ......