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目的对常规心电图(ECG)与24 h动态心电图(DCG)进行比较分析,为临床提供有意义的诊断资料。方法根据病因将198例心脏病患者分为三组:冠心病组67例、高血压病组69 例、肺源性心脏病组62例,所有患者均进行ECG检查,并采用DCG监测系统记录24 h心电活动, 回放并进行分析、记录。结果 198例患者ECG检出心律失常者62例(占31．3％),DCG检出心律失常者183例(占92,4％)。ECG检出心肌缺血者65例(占32．8％),DCG检出心肌缺血者121例 (占61．1％)。结论 DCG对于各种心律失常及间断性心肌缺血的检测明显优于ECG,对于心电图正常但有心脏病临床症状,可作为首选的无创检查方法,但对持续性心肌缺血、左室肥大及室内传导阻滞则两种检查结果相差不大,对于心肌梗死的定位诊断及左前分支传导阻滞则DCG不如
Objective To compare and analyze conventional electrocardiogram (ECG) with 24-hour ambulatory electrocardiogram (DCG) to provide meaningful diagnostic data for clinic. Methods According to the etiology, 198 cases of heart disease were divided into three groups: 67 cases of coronary heart disease, 69 cases of hypertension and 62 cases of pulmonary heart disease. All patients underwent ECG examination and DCG monitoring system was used to record 24 h ECG activity, playback and analysis, record. Results Among the 198 patients, 62 cases (31.3%) had ECG detected arrhythmia and 183 cases (92.4%) had DCG detected arrhythmia. There were 65 cases of myocardial ischemia (32.8%) detected by ECG, and 121 cases (61.1%) of myocardial ischemia detected by DCG. Conclusions DCG is superior to ECG in detecting all kinds of arrhythmia and intermittent myocardial ischemia. It is the first choice of noninvasive examination for normal electrocardiogram but clinical symptoms of heart disease. However, DCG has no effect on persistent myocardial ischemia, left ventricular hypertrophy and Intravenous conduction block is insignificant difference between the two tests for the diagnosis of myocardial infarction and left anterior branch block DCG is not as good as