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良好的病史常常足以对心绞痛或有症状的冠状动脉机能不全作出诊断。但有时疼痛发作不够典型。而在休息时记录的心电图是正常的,在这种情况下就渴望在客观上肯定诊断。运动试验的目的是增加心肌耗氧,以显示在休息时记录的心电图所没有的心肌缺血的表现(ST 段改变),提供诊断的证据。虽然常规二级梯运动试验已普遍应用于冠心病的诊断,但尚不够灵敏。我们对运动后心前区ST 段标测与常规二级梯运动试验心电图进行分析比较,结果证明ST 段标测对冠心病的诊断灵敏性较常规二级梯运动试验为优。现将临床研究结果报告如下:
Good medical history is often enough to diagnose angina or symptomatic coronary insufficiency. But sometimes episodes of pain are not typical. The electrocardiogram recorded at rest is normal, in which case it is eager to objectively confirm the diagnosis. The purpose of the exercise test is to increase myocardial oxygen consumption to show the performance of myocardial ischemia (ST-segment changes) that is not recorded on resting electrocardiograms, providing diagnostic evidence. Although conventional two ladder exercise test has been widely used in the diagnosis of coronary heart disease, but not yet sensitive enough. We analyzed the precordial precordial ST segment mapping and routine second-order ladder exercise test ECG comparison, the results show that ST segment detection of coronary heart disease diagnostic sensitivity than the conventional two ladder exercise test is excellent. The clinical research results are reported as follows: