Ziablov Iu I, Plotnikova N D
Ter Arkh. 1996;68(9):40-2.
70 IHD patients underwent ambulatory Holter ECG monitoring two times. Out of 357 episodes of transitory ischemia registered in the course of exercise and presenting primarily as ST depression the proportion of silent episodes reached 75.6%. The number of episodes, their duration and mean value of ST depression were significantly greater in subjects 1 year after myocardial infarction. These patients more frequently developed ventricular arrhythmia and had ejection fraction below 50%. The findings evidence a significant clinical value of silent myocardial ischemia. It may serve a predictor of repeated acute coronary accidents in postmyocardial infarction patients.
70例缺血性心脏病(IHD)患者接受了两次动态心电图监测。在运动过程中记录到的357次短暂性缺血发作中,主要表现为ST段压低,其中无症状发作的比例达到75.6%。心肌梗死后1年的患者,发作次数、发作持续时间及ST段压低的平均值显著更高。这些患者更常发生室性心律失常,射血分数低于50%。这些发现证明了无症状心肌缺血具有重要的临床价值。它可能是心肌梗死后患者再次发生急性冠脉事件的一个预测指标。