On the total relaxation of the left ventricle in primary rheumocarditis in children. Apex-cardiographic studies.

Apexcardiographic studies were carried out on 100 healthy children and 120 children, aged 3-14 years, with primary rheumocarditis. An analysis of the results indicate that the duration of total relaxation of the left ventricle is prolonged in the group of children suffering from primary rheumocarditis. The prolongation of TR is due to the increased PD interval, as well as to the prolonged IVR. The changes described lead to a certain phasic delay of the aortal and opening of the mitral valves.