Aclinical study of rhythms of myocardial ischemia in patients with coronary heart disease

摘要

The data of 636 episodes of ischemic ST segment depression in 108 patients with angina pestoris were studied by 24 hours ambulatory electrocardiogram. The results are as follows first the patients whit silent myocardial ischemia amount to 75percent of all patients with ischemia, which is three times as may as symptomatic myocardial ischemia Second 77.2percent patients with ischemic ST segment depression relate to labour. Myocardial ischemia has a clear circadian variation. The frequency of change peaks at 6:00 - 10:00 am, which amounts to 32.2percent of the whole day. It suggests that the total ischemic buren, including silent myocardial ischemia, should be paid much atlention in the treatment of coronary artery disease. Meanwhile, we should adjust treatment according to day and night regularity of ischemic attack.