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无痛性心肌缺血在临床各类冠心病中是常见的。动态心电图监测已经为无痛性缺血提供了最客观证据,但是这种现象也可通过运动诱发缺血性ST段改变、心肌闪烁显象灌注缺损及左室壁运动异常的分析而查出来。无痛性心肌缺血常发生于稳定性心绞痛、不稳定性心绞痛、心肌梗塞以及完全无症状的冠心病患者、在一述各组患者中,无痛性心肌缺血者预后均差。如:稳定性心绞痛患者中37例心电监测示缺血者中半数临床状况恶
Painless myocardial ischemia is common in all types of coronary heart disease. Holter monitoring has provided the most objective evidence of painless ischemia, but this phenomenon can also be detected by exercise-induced changes in ischemic ST segments, perfusion defects in myocardial scintigraphy, and abnormal left ventricular wall motion. Painless myocardial ischemia often occurs in patients with stable angina, unstable angina, myocardial infarction, and asymptomatic coronary heart disease. In each of the groups described, painless myocardial ischemia was associated with poor prognosis. Such as: 37 patients with stable angina pectoris ECG showed ischemic half of the clinical conditions worse