摘要
目的观察右美托咪定不同给药剂量对非体外循环冠状动脉旁路移植术(OPCABG)患者循环系统、应激反应的影响。方法选取行OPCABG患者96例,采用简单随机法分为两组。A组在麻醉诱导前给予右美托咪定0.5μg/kg于10 min内输入,然后以0.5μg/(kg·h)维持剂量泵入直至手术结束。B组在麻醉诱导前给予右美托咪定0.8μg/kg于10 min内输入,然后以0.8μg/(kg·h)维持剂量泵入直至手术结束。检测麻醉开始前(T0)、插管即刻(T1)、手术开始即刻(T2)、锯胸骨时(T3)、拔管即刻(T4)心脏指数(CI)、心率、平均动脉压(MAP)、胸腔内血容量指数(ITBI)、双频谱指数(BIS)、全身外周血管阻力指数(SVRI)差异,比较两组皮质醇(Cor)、血管紧张素Ⅱ(AngⅡ)水平及安全性、术后苏醒时间。结果两组手术时间、麻醉时间、出血量、尿量比较差异无统计学意义(P>0.05),B组患者术中顺阿曲库铵使用量低于A组患者(P<0.05)。T0时,两组心率、MAP比较差异无统计学意义(P>0.05)。两组T1-T3时心率、MAP均较T0时升高,A组T4时心率、MAP均较T0时升高,B组T4时心率、MAP与T0时比较差异无统计学意义(P>0.05)。B组T2-T4时心率、MAP均低于同时间A组(P<0.05)。T0时,两组CI、CO、ITBI、SVRI比较差异无统计学意义(P>0.05)。两组T1-T4时CI、CO、ITBI、SVRI均较T0时降低(P<0.05)。B组T0-4时CI、CO、ITBI、SVRI与同时间A组比较差异无统计学意义(P>0.05)。T0时,两组BIS值比较差异无统计学意义(P>0.05)。两组T1-T4时BIS值均较T0时降低(P<0.05)。B组T2-4时BIS值均低于同时间A(P<0.05)。B组术后苏醒时间(8.12±1.88)min与A组的(8.05±1.97)min比较,差异无统计学意义(P>0.05)。术前,两组Cor、AngⅡ比较差异无统计学意义(P>0.05)。两组术后6 h时Cor、AngⅡ较术前升高(P<0.05)。B组术后6 h时Cor、AngⅡ低于同时间A组(P<0.05)。两组不良反应发生率(A组6.25%和B组8.33%)比较,差异无统计学意义(P>0.05)。结论与0.5μg/(kg
Objective To observe the effects of different administration doses of dexmedetomidine on the circulatory system and stress response in patients undergoing extracorporeal coronary artery bypass grafting(OPCABG).Methods Ninety-six patients who underwent OPCABG in our hospital from October 2021 to October 2023 were selected and divided into two groups using simple randomization method.Group A was administered dexmedetomidine at a dose of 0.5μg/kg over 10 minutes before anesthesia induction,followed by a maintenance dose of 0.5μg/(kg·h)infused until the end of the surgery,while group B was administered dexmedetomidine at a dose of 0.8μg/kg for 10 min before anesthesia induction,followed by a maintenance dose of 0.8μg/(kg·h)until the end of the operation.The two groups were compared in terms of cardiac index(CI),heart rate,mean arterial pressure(MAP),intrathoracic blood volume index(ITBI),bispectral index(BIS),and systemic peripheral vascular resistance index(SVRI)before anesthesia started(T0),at the immediate moment of intubation(T1),at the immediate moment of the start of the surgery(T2),at the time of sawing of the sternum(T3),and at the immediate moment of extubation(T4).Additionally,the two groups were compared in terms of cortisol(Cor),AngiotensinⅡ(AngⅡ)levels,safety and postoperative awakening time.Results The two groups showed no differences in operation time,anaesthesia time,bleeding and urine volume(P>0.05),but group B demonstrated less intraoperative use of cisatracurium compared to group A(P<0.05).At T0,the two groups showed no difference in heart rate and MAP(P>0.05),but higher heart rate and MAP at T1 and T3 than at T0.Group A was observed to have higher heart rate and MAP at T4 than at T0,while group B showed no significant differences in heart rate and MAP at T4 compared to them at T0(P>0.05).At T2 and T4,Group B showed significantly lower heart rate and MAP compared to group A(P<0.05).At T0,the two group had no differences in terms of CI,CO,ITBI,and SVRI(P>0.05).Both groups showed significan
作者
解静
郭栋
冯世强
赵毅
李红
曲振华
XIE Jing;GUO Dong;FENG Shiqiang;ZHAO Yi;LI Hong;QU Zhenhua(Department of Anesthesiology,Xingtai People's Hospital,Xingtai 054001,China)
出处
《实用医学杂志》
CAS
北大核心
2024年第11期1574-1579,共6页
The Journal of Practical Medicine
基金
河北省医学科学研究课题计划项目(编号:20201268)
邢台市重点研发计划项目(编号:2021ZC145)。
