The observations cover 96 male patients, aged from 30 to 61 suffering ischemic heart disease with clearly manifested stenocardia. The diagnosis in all patients was made on the base of a thorough clinical examination, the results from the electrocardiography and the selective coronarography. The data obtained from the clinical instrumental and clinical-angiographic examinations reveal that a correlation exists between the stage of the coronary arteries lesions, the patients's age, number of previous myocardial infarctions, severity of stenocardia and the state of the coronary reserve. The extent growth of the coronary arteries lesion goes in parallel with the patients' age advancement, the number of previous myocardial infarctions, severity of stenocardia and the diminution of coronary reserve. In this respect the character of stenocardia and the state of coronary reserve have the highest informative value. Our examinations failed to establish any correlation between the stage of the coronary arteries lesion and the stage and eytension of myocardial lesion on the electrocardiogram as well as between the stage of coronary arteries lesion and the duration of the illness.
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