[Comparative clinical and radiocardiographic studies in coronary disease].

A clinical-functional characteristics was carried out of 124 patients with coronary disease (104 patients with a past history of myocardial infarction in a post-convalescent stage and 20 patients with atherosclerotic myocardiosclerosis). The patients were distributed into three groups depending on the functional state of the cardiovascular system. Manifestations of decompensation were found only in one of the groups--postinfarction states. A comparison was made of the changes in the central hemodynamics, assessed radiocardiographically. In all the three groups, a decrease of the minute and stroke volumes was radiocardiographically established as well as stasis in the pulmonary circulation, confirmed by the changes in the pulmonary volume of blood and velocity of blood within the pulmonary circulation, a manifestation of left-ventricular insufficiency. Left ventricular insufficiency is found in the patients with coronary disease in the absence of clinical manifestations of cardiac insufficiency.