COMPARING 24-HOUR ECG MONITORING DATA AND CORONARY BED IN PATIENTS WITH VARIOUS COURSES OF UNSTABLE ANGINA-PECTORIS

A total of 232 patients with various clinical types of unstable angina pectoris were examined. All the patients underwent coronary angiographic studies, 24-hour ECG monitoring. In 40.5 % of the patients, 24-hour monitoring revealed transient ST segment changes which were not accompanied by pain in 47 % of the cases. ST segment changes were equally encountered in patients with one-, two-, and three-vessel disease in the presence or absence of pain. Ischemic ST segment changes generally occurred with an anginal episode in patients with crescendo unstable angina, whereas in those with more prolonged and intensified pain and angina at rest in particular, silent myocardial ischemic episodes were significantly more frequently recorded, which were more common in these patients with multivessel disease.