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分析１２０例冠心病患者２４ｈ动态心电网监测结果，表明无症状性缺血型ＳＴ段压低次数明显多于有症状者（Ｐ＜０．０１）；缺血型ＳＴ段压低时伴有典型心绞痛症状者少（占１２．５４％），其平均持续时间明显长于无症状性者（Ｐ＜０．０１）；发作次数白昼占８７．４６％，明显多于夜间（Ｐ＜０．０１），白昼以６～１２时为发作高峰，占５７．９４％；发作时的平均心率明显快于缺血前的平均心率。
Analysis of 120 patients with coronary heart disease 24h dynamic ECG monitoring results show that asymptomatic ischemic ST segment depression was significantly more than symptoms (P <0.01); ischemic ST segment depression accompanied by typical symptoms of angina (12.54%), the average duration was significantly longer than asymptomatic (P <0.01); the number of seizures in day accounted for 87.46%, significantly more than at night (P <0.01), day 6 to 12 hours for the onset of the peak, accounting for 57.94%; attack when the average heart rate was significantly faster than the average pre-ischemic heart rate.