Нeart rhythm and conduction disturbances in patients and adolescents with electrocardiographic phenomenon of early ventricular repolarization

The frequency and nature of cardiac arrhythmias and conduction disturbances in patients and adolescents with electrocardiographic syndrome of early ventricular repolarization were studied. It has been determined that cardiac rhythm and conduction disturbances in patients with early ventricular repolarization syndrome are quite common, with a predominance of arrhythmias caused by a change in the automatism function of the sinus node and the presence of intraventricular blockades. It was revealed that in children with this electrocardiographic phenomenon, in the vast majority of cases, there are manifestations of the syndrome of connective tissue dysplasia –minor anomalies in the development of the heart – 84.1%, (p < 0.001), and additional chords are most often recorded in the cavity of the left ventricle – 85.6% (p < 0.001), both isolated and in combination with other anomalies and congenital heart defects. It was found that cardiac rhythm and conduction disturbances in patients with electrocardiographic syndrome of early ventricular repolarization are quite common (78.6±1.84%), with a predominance of cases of arrhythmias caused by changes in the automatism function of the sinus node (p < 0.001) and the presence of intraventricular blocks. In children and adolescents with early ventricular repolarization, additional chords are most often recorded (85.6%, (p < 0.001)), both isolated and in combination with other heart anomalies. The data obtained indicate the presence of a relationship between the early ventricular repolarization syndrome and connective tissue dysplasia, which makes it possible to attribute this electrocardiographic syndrome to the conditions associated with this syndrome.

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