[Dynamic observation data on the course of ischemic heart disease].

The clinical course of ischemic heart disease was followed-up for 3 to 5 years after coronarography in 91 patients with atherosclerotic affection of the coronary arteries who had not been given purposeful treatment. In 30.8 per cent in cases the clinical picture of the disease grew worse: angina of effort became more frequent angina at rest occurred (19.8%), and myocardial infarction (7.7%) and symptoms of circulatory insufficiency (3.3%) developed. A lethal outcome was recorded in 16.5% of cases. A connection between the extent of the atherosclerotic process (the number of vessels involved) and the advancement of the disease was revealed.