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心肌缺血的临床诊断主要依靠典型的心绞痛史。但心肌缺血而不出现疼痛以及无疼痛的 ST 段偏移,提示可能有无症状的冠心病存在。日常活动时发现的临床无症状的 ST 段偏移的发生率及意义至今尚不清楚。本文报道50例经冠状血管造影证实有和无冠心病患者在日常活动时出现 ST 段偏移的程度,并分析其与冠心病严重程度以及与心室功能和心率的相关关系。
The clinical diagnosis of myocardial ischemia mainly depends on the history of typical angina. However, myocardial ischemia without pain and pain-free ST segment offset, suggesting that asymptomatic coronary heart disease may exist. The incidence and significance of clinically asymptomatic ST segment deviations found during daily activities are not yet known. This article reports the extent of ST segment excursion in 50 patients with or without coronary heart disease during their daily activities confirmed by coronary angiography and analyzes their relationship with the severity of coronary heart disease and their relationship with ventricular function and heart rate.