冠状动脉介入术患者的意识镇静及其对血流动力学的影响

目的 观察镇静药物咪唑安定及芬太尼在冠状动脉介入术应用中的安全性及其对血流动力学的影响.方法 150例行冠状动脉介入术患者,随机分为3组:50例在常规局部麻醉前给予生理盐水5ml静脉注射(对照组),50例给予0.04 mg/kg咪唑安定用生理盐水稀释至5 ml静脉缓慢注射(咪唑安定组),50例给予咪唑安定0.02 mg/kg联合芬太尼1.2μg/kg用生理盐水稀释至5 ml缓慢注射(联合芬太尼组),观察3组患者HR、血压、经皮血氧饱和度、患者镇静程度评分及脑电双频谱指数(BIS)变化,术后对患者镇静满意程度及术中相关并发症情况进行随访.结果 3组给药前MAP和HR差异均无统计学意义(F分别为3.34和2.98,P均>0.05),对照组术中MAP为(95.7±14.5)mm Hg,显著高于术前(85.4±15.3)mm Hg,t=4.34,P<0.01],术中HR为(83.3±23.4)次/min,与给药前(78.4±22.7)次/min]比较差异有统计学意义(t=3.37,P<0.01).对照组、咪唑安定组和联合芬太尼组术中BIS评分分别为(90.5±7.2)分、(75.5±12.8)分和(72.3±14.1)分,术后24 hVAS评分分别为(53.5±25.4)分、(58.8±18.2)分和(71.9±16.8)分,组间比较差异均有统计学意义(F分别为10.89和8.56,P均<0.01).结论 冠状动脉介入术前使用小剂量的咪唑安定及芬太尼可以缓解患者紧张焦虑情绪,提高手术耐受性及安全性,对血流动力学无明显影响.

Influences of calmness of consciousness in patients undergoing coronary intervention on haemodynamics

Objective To observe the safety of midazolam and fentanyl in coronary intervention and its effect on haemodynamics. Methods 150 cases undergoing coronary intervention were randomly divided into three groups(n=50 for each):the control group were given injection of 5 ml saline,midazolam group were given 0.04 mg/kg midazolam and combined fentanyl group were given injection of 0.02 mg/kg midazolam with 1.2μg/kg fent-anyl intravenously. Heart rate(HR),mean blood pressure(MAP),SpO<,2>,OAA/S and BIS were observed during the intervention and the patients' satisfaction and the incidence of complications were investigated. Results There was no significant difference among the three groups in MAP and HR (F=3.34,2.98,P>0.05). MAP increased from (95.7±14.5) mm Hg to (85.4±15.3) mm Hg after treatment (t=4.34,P<0.01) and HR increased from (83.3±23.4) times/min to (78.4±22.7) times/min in control group (t=3.37,P<0.01). BIS score was (90.5±7.2),(75.5±12.8) and (72.3±14.1) during intervention and 24 hVAS score was (53.5±25.4),(58.8±18.2) and (71.9±16.8) in control group,midazolam group and combined fentanyl group,with significant difference between groups (F=10.89,8.56,P<0.01). Conclusion Low dose of midazolam and fentanyl can make the patients calm,which relieves the tensity and anxiety and enhance the tolerance and safety of intervention but has no remarkable effect on bemodynamics.