老年无症状心肌缺血动态心电图特点分析  

The clinic characteristics of dynamic electrocardiogram of silent myocardial ischemia in elder patients

作　　者：任晓兰[1] 段霄燕 

机构地区：[1]武警四川总队成都医院内一科,四川成都610004

出　　处：《中国当代医药》2009年第23期34-35,共2页China Modern Medicine

摘　　要：目的:探讨老年无症状心肌缺血动态心电图的临床特点。方法:检测到有心肌缺血改变的老年冠心病患者根据有无症状分为A、B两组,其中A组为有症状组(71例),B组为无症状组(132例),观察两组心肌缺血ST段下移时的平均心率、持续时间、心律失常的发生率,记录两组心肌缺血发作阵次,分析不同时间段缺血型ST-T改变发生率。结果:无症状组患者的心肌缺血平均发作次数明显多于有症状组(P<0.05);有症状组发作时的心率明显高于无症状组,而发作持续时间明显长于无症状组(P<0.05);无症状组患者心律失常发生率明显高于有症状组(P<0.05)。两组患者缺血型ST-T改变在6:00～12:00时段发生率最高,0:00～6:00发生率最低,两时间段缺血型ST-T改变发生率比较,差异有统计学意义(P<0.05)。结论:DCG对SMI检出率高,有助于对老年冠心病患者的病情评估和早期防治。Objective：To investigate the clinic characteristics of dynamic electrocardiogram of silent myocardial isehemia in elder patients. Methods：203 elder patients with coronary heart disease were divided 2 groups by absence of symptom or not.Group A（n=71） had clinic symptoms of myocardial ischemia and group B（n=132） were absence of symptom.To observe the heart rate, persistent perlod,the incidence of arrhythmic and inicdenee of ST-T changes in different duration. Results： The number of times of myocardial ischemia ,ersistent period and incidence of arrhythmic of myocardial ischemia of group B were higher than those of group A（P〈0.05 ）.The incidence of ST-T changes in 2 groups between 6：00-12：00 were higher than those of between 0：00-6：00. Conclusion：DCG has a higher detection rate in SMI,which is helpful to evaluate pathogenetic condition and early prevention.

关 键 词：冠心病 动态心电图 心肌缺血 

分 类 号：R540.41[医药卫生—心血管疾病]