右美托咪定在妇科腹腔镜手术中的镇静作用比较
发布时间:2018-12-20 09:55
【摘要】:[目的]右美托咪定是一种高选择性的α2-肾上腺素受体激动剂,因其具有镇静、镇痛、去交感、稳定血液动力学并且无呼吸抑制等作用,而广泛应用于临床。本研究以Narcotrend指数作为麻醉深度标准,评价3种剂量的右美托咪定微量泵泵注在妇科腹腔镜手术中的作用比较。 [方法]采用随机、对照和双盲的研究方法。选择妇科腹腔镜择期手术80例,经过充分术前准备,ASA分级为Ⅰ至Ⅱ级,随机数字法分为四组,每组为20例。右美托咪定组:Ⅰ组(D1组)、Ⅱ组(D2组)及Ⅲ组(D3组)分别给予右美托咪定0.5、0.75及1.oμg·kg-1。对照组(C组)为等容量的氯化钠注射液,四组分别以微量泵于麻醉诱导前10min内微量泵泵注。4组患者的麻醉诱导、维持过程相同。四组分别调节丙泊酚血浆靶浓度将Narcotrend指数控制在50-60范围之内。监测并记录各组患者用药前(TO)、诱导前(T1)、插管前(T2)、插管后(T3)、切皮气腹开始(T4)、气腹后1Omin(T5).20min(T6).30min(T7)、术毕(T8)及拔管后(T9)患者的丙泊酚效应室浓度及血流动力学参数,记录患者的苏醒时间。 [结果]四组的麻醉手术时间和患者的苏醒时间并无显著性差异(P0.05),而四组所使用的丙泊酚总量具有明显的差异性(P0.01)。D1组、D2组及D3组丙泊酚的用量分别为、(5.0±1.5).(4.5±1.1)和(3.5±1.2)mg·kg-1·h-1,C组为(8.2±1.2)mg·kg-1·h-1。在麻醉诱导和术中维持时D1、D2和D3组与C组相比,右美托咪定组患者的血流动力学参数波动较小,C组患者的血流动力学波动比较大。患者在四组中均未见严重不良反应。 [结论]单次泵注右美托咪定能够有效降低麻醉诱导和维持阶段的丙泊酚的效应室浓度,随着使用剂量的逐渐增加,并且相应地减少术中丙泊酚的使用总量。单次微泵静注3种剂量的右美托咪定,可安全用于妇科腹腔镜手术的麻醉,理想的应用剂量应该是小于1.0μg·kg-1。
[Abstract]:[objective] dexmetomidine is a highly selective 伪 2-adrenergic agonist, which is widely used in clinical practice because of its sedative, analgesic, sympathetic, hemodynamic stabilization and no respiratory inhibition. The purpose of this study was to evaluate the effects of three doses of dexmetomidine micropump on gynecological laparoscopic surgery with Narcotrend index as the standard of anesthesia depth. [methods] A randomized, controlled and double blind study was used. 80 cases of gynecologic laparoscopic elective surgery were selected. After full preoperative preparation, ASA was classified as grade 鈪,
本文编号:2387824
[Abstract]:[objective] dexmetomidine is a highly selective 伪 2-adrenergic agonist, which is widely used in clinical practice because of its sedative, analgesic, sympathetic, hemodynamic stabilization and no respiratory inhibition. The purpose of this study was to evaluate the effects of three doses of dexmetomidine micropump on gynecological laparoscopic surgery with Narcotrend index as the standard of anesthesia depth. [methods] A randomized, controlled and double blind study was used. 80 cases of gynecologic laparoscopic elective surgery were selected. After full preoperative preparation, ASA was classified as grade 鈪,
本文编号:2387824
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