Objective: To research the clinical significance by lasting ECG st segment depression and t wave inversion.
目的：研究心电图持续ST段下移与T波倒置的临床意义。
Methods: 1. According to the changes of ST segment in ECG and coronary angiography, 87 cases were divided into three groups: coronary heart disease(C) group and hypertension (H) group.
方法：1、选择87例因体表心电图ST段异常改变的住院患者，经冠状动脉造影后分为单纯冠心病组及高血压组。
Results The frequencies of ECG ST T abnormalities were higher in Guangzhou, rural and women than those in Beijing, urban and men respectively. T wave abnormalities were much more than ST segment.
结果ST T异常的发现率在广州地区、农村人群、女性人群较高，北京地区、城市人群、男性人群较低，T波异常明显多于ST段异常。
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