[X-ray study of the function of a "preserved" myocardium in chronic cardiac aneurysm compared to intracardiac hemodynamic data].

The data of X-ray, radiokymography and of intracardiac haemodynamic studies were compared in 45 cases of chronic cardiac aneurysms and varying degrees of circulatory insufficiency. Special attention was paid to the study of the functional state of the myocardium beyond the zone of the aneurysm that was conducted with the aid of radiokymography. A certain correlation was established between the amplitude of the radiokymographic curve along the left ventricular margin beyond the aneurysmal zone and the severity of the haemodynamic disorders. An unfavourable effect of a decreasing amplitude of the curve towards the cardiac apex was revealed.