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205例(男122、女83,年龄44～81岁,平均54.9岁)冠心病(CHD)患者,应用美国产HP434—20A双通道动态心电监测系统,CM_1和CM_5导联,进行患者在日常活动下24h动态心电图(DCG)监测,同时作常规12导联心电图(ECG)对照。结果DCG检出缺血性ST段下移者197例(96.1％),ECG检出47例(22.9％),两者差异非常显著,说明DCG可检出ECG不能发现的一过性、短暂性或阵发性心肌缺血变化,因而在诊断CHD缺血性ST段改变具有重要性。
205 patients (male 122, female 83, aged 44-81 years, mean 54.9 years) with coronary heart disease (CHD) were treated with American-made HP434-20A dual channel ambulatory electrocardiogram monitoring system, CM_1 and CM_5 lead, Activities 24h dynamic electrocardiogram (DCG) monitoring, at the same time for the conventional 12-lead electrocardiogram (ECG) control. Results DCG detected 197 cases (96.1%) of ischemic ST-segment down and 47 cases (22.9%) of ECG were detected, the difference was very significant, indicating that DCG can detect ECG can not be found transient, transient Or paroxysmal myocardial ischemia, and therefore in the diagnosis of CHD ischemic ST segment changes of importance.