冠心病无症状性心肌缺血的动态心电图特点  

Dynamic ECG characteristics of asymptomatic myocardial ischemia in coronary heart disease

作　　者：杨永春[1] 廖红英[1] 唐芳[1] YANG Yong-chun;LIAO Hong-ying;TANG Fang(Department of Physical Examination,Ganzhou People's Hospital,Ganzhou,Jiangxi 341000)

机构地区：[1]赣州市人民医院体检科,江西赣州341000

出　　处：《赣南医学院学报》2021年第7期674-676,697,共4页JOURNAL OF GANNAN MEDICAL UNIVERSITY

基　　金：赣州市科技局指导性课题(GZ2019ZSF166)。

摘　　要：目的:探讨冠心病无症状性心肌缺血的动态心电图特点。方法:对我院2019年3月—2020年6月期间50例心肌缺血患者的临床资料进行回顾性分析。结果:50例患者24 h动态心电图(Dynamic electrocardiogram,DCG)监测结果显示共发生心肌缺血311振次,其中无症状性心肌缺血41例,发生264振次(84.89%),有症状性心肌缺血9例,发作47振次(15.11%),差异有统计学意义(P<0.05);无症状性心肌缺血发作持续时间短于有症状性心肌缺血发作持续时间,差异有统计学意义(P<0.05);无症状性心肌缺血6∶00—12∶00发作147振次(55.68%),0∶00—6∶00发作22振次(8.33%),6∶00—12∶00发作次数最多,0∶00—6∶00发作次数最少;无症状性心肌缺血ST段降低时,患者心率明显上升,同发作前相比差异有统计学意义(P<0.05)。结论:动态心电图可作为冠心病无症状性心肌缺血诊断的有效手段,对无症状性心肌缺血的监测和预防有积极意义。Objective:To investigate the dynamic ECG characteristics of asymptomatic myocardial ischemia in coronary heart disease.Methods:The clinical data of 50 patients with myocardial ischemia in our hospital from March 2019 to June 2020 were retrospectively analyzed.Results:The results of 24 h dynamic electrocardiogram(DCG)monitoring of 50 patients showed a total of 311 vibrations of myocardial ischemia,including 41 cases of asymptomatic myocardial ischemia,264(84.89%)vibrations,9 cases of symptomatic myocardial ischemia,attacks 47(15.11%)vibration times,the contrast was statisticallly significant(P<0.05);the duration of asymptomatic myocardial ischemic attack was shorter than that of symptomatic myocardial ischemic attack,the contrast was statisticallly significant(P<0.05);asymptomatic myocardial ischemia had 147(55.68%)vibrations in 6:00-12:00,22(8.33%)vibrations in 0∶00-6∶00,and the most frequent attacks in 6∶00-12∶00,0:00-The number of attacks was the least at 6∶00;when the ST segment of asymptomatic myocardial ischemia was reduced,the patient's heart rate increased significantly,which was significantly different from that before the attack(P<0.05).Conclusion:Dynamic ECG can be used as an effective means for the diagnosis of asymptomatic myocardial ischemia in CHD,and it has positive significance for the monitoring and prevention of asymptomatic myocardial ischemia.

关 键 词：动态心电图 无症状性心肌缺血 诊断 监测 

分 类 号：R445[医药卫生—影像医学与核医学]