冠心病患者无症状心肌缺血阈的临床意义  

Chinical significance of myocardial ischemic threshold in silent myocardial ischemic patients with coronary heart disease

作　　者：桑叶[1] 寇艳[1] 张杨[1] 徐培国[1] 

机构地区：[1]泸州市人民医院心电图室,四川泸州646000

出　　处：《现代医药卫生》2009年第18期2755-2756,共2页Journal of Modern Medicine & Health

摘　　要：目的:探讨冠心病患者无症状心肌缺血阈(MIT)的临床应用价值。方法:记录73例冠心病患者十二导联动态心电图的MIT及其变异性(IV)、每次缺血发作持续时间(Tmi)和ST段最大位移(STm)以及昼夜缺血次数。结果:73例冠心病患者中共检出心肌缺血650次,其中600次属无症状心肌缺血,92.8%在ST段压低时心率加快,夜间MIT值较低,但缺血时间及ST段压低程度明显重于昼间(P<0.01)。结论:十二导联动态心电图是临床上检测无症状心肌缺血(SMI)的重要方法之一,对临床评估SMI的预后及给药有重要临床意义。Objective：To investigate the clinical value of myocardial ischemic thresold （MIT） in silent myocardial ischemia （SMI） patients with CHD.Methods：Using 12-lead dynamic electrocardiography （DCG） to monitor MIT, IV ,Taft, STm ,day and night ischemie episodes in 73 CHD patients.Results：Isehemic episodes were 650 times,600 of them belonged to SMI,92.8% of them had the faster heart rate when ST depression;MIT in night was lower, but TMI and STm were higher than those in day （P〈0.01）.Conclusion：Using 12-lead. DCG to monitor SMI is one of the important methods and has clinical significance to evaluate the prognosis and treatment effects of SMI patients with CHD.

关 键 词：冠心病 无症状心肌缺血 心肌缺血阈 十二导联动态心电图 

分 类 号：R54[医药卫生—心血管疾病]