In the syndrome of premature ventricular excitation (PVE) of the heart, part of the ventricular myocardium or the entire myocardium is activated by impulses conducted through accessory pathways (AP), and patients sooner or later develop tachyarrhythmic attacks, which under certain conditions are transformed into atrial and ventricular fibrillation, posing a threat to the patient's life.
Manifestations of PVE are rare - from 0.15 to 3.1% of the general population, including 9% of the total number of children with cardiac arrhythmias. This disease manifests itself in different forms - from constant clinical and electrophysiological manifestations in the manifest form to the absence of any subjective and objective symptoms in the latent form.