[Analysis of the symptoms of ischemic heart disease with a lesion of the trunk of the left coronary artery by using an automated information system].

Using an information system, the authors compared the results of the examination of 169 patients with coronary heart disease and left coronary artery trunk lesions and of 605 patients without such lesions. The functioning of the system was controlled by a complex of programmes designed according to the modular principle. It comprises the following modules: modules of the formation and control of the data pool, modules of the formation of sub-pools according to a given set of signs and modules of data processing. The patients with coronary heart disease and a lesion of the left coronary artery trunk had a number of clinical characteristics including frequent and severe anginal attacks, a large zone of myocardial ischemia, a low exercise tolerance and a considerable depression of the ST segment on the ECG, as well as a long rehabilitation period.