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目的研究运动致 ST 段抬高在非心肌梗死患者中发生率及其临床意义。方法 2004年6月至2006年6月共有4601例患者接受了运动平板试验,其中有15例非心肌梗死患者出现 ST 段抬高,对这15例患者的临床特点与冠状动脉造影结果进行分析。结果 15例(3.2‰)运动致 ST 段抬高患者中,男性13例,女性2例,年龄40～75岁。单支病变者6例(40%),2支病变者6例(40%),3支病变者3例(20%);12例(80%)累及前降支,1例(6.6%)累及左主干,7例累及右冠状动脉,在累及前降支及左主干13例患者中有8例为重度狭窄病变(狭窄程度为90%～100%),所有ST 段抬高的导联均与病变血管的供血部位一致。结论运动致 ST 段抬高在非心肌梗死患者中发生率非常低,多因冠状动脉有严重的固定性狭窄,特别是前降支,可根据出现 ST 段抬高的导联判断缺血心肌的部位。
Objective To investigate the incidence of ST-segment elevation during exercise in patients with non-myocardial infarction and its clinical significance. METHODS: A total of 4601 patients undergoing exercise treadmill test from June 2004 to June 2006 were retrospectively analyzed. Among them, 15 cases of ST-segment elevation were observed in non-myocardial infarction patients. The clinical features and coronary angiography findings of 15 patients were analyzed. Results Of the 15 cases (3.2 ‰) of exercise-induced ST-segment elevation in patients, 13 were male and 2 females, aged 40 to 75 years. Six patients (40%) had single vessel disease, 6 patients (40%) had two lesions and three patients (20%) had three lesions. Twelve patients (80%) had anterior descending artery and one patient (6.6% Of the 13 cases involving the left anterior descending artery and the left anterior descending artery, 8 were severe stenosis (stenosis of 90% to 100%), and all the leads of ST elevation Blood vessels and vascular lesions consistent. Conclusions The incidence of ST segment elevation during exercise is very low in patients with non-myocardial infarction. Mostly due to severe fixed stenosis of coronary artery, especially anterior descending artery, the ischemic myocardium can be judged according to the lead of ST segment elevation Site.