The ratio between the topography of arrhythmogenic heart ventricle zones and localization of stenotic coronary arterial involvement in patients with coronary heart disease
The work is focused on comparative analysis of extent and localization of stenotic coronary arterial involvement with electrotopographic location of ventricular premature beats foci in patients with ischemic heart disease. The study included 93 patients with symptomatic ischemic heart disease, coronary artery stenosis of different degree and monomorphic ventricular extrasystole. It was revealed that in case of ischemic heart disease the ventricular extrasystoles are observed both from the area of blood supply to the affected coronary artery, and from other areas of ventricular myocardium. However, the percentage of patients with ventricular extrasystoles of an area of blood supply of the affected coronary artery increases with increasing severity of the stenosis, and therefore ventricular extrasystoles of an area of blood supply of the affected coronary artery can be considered as an indication of coronary insufficiency. In patients with hemodynamically insignificant stenoses of the coronary arteries the presence of ventricular extrasystoles in the blood supply area of the affected coronary artery may be an evidence of coronary artery spasm.