[The contribution of the myocardial segmental nonhomogeneity of the left ventricular walls to its contractile and pumping functions].

A normalised variation coefficient of the partial systolic fraction served as the measure of nonhomogeneity of the segmentary kinetics of the left ventricle's wall (parameter J). A significant correlation was found between the parameter J and the fraction of the ventricle output (the correlation being negative one) both in normal subjects and in patients with cardiac pathology. The parameter J was also found to be a sensitive index of the heart pumping and contractile functions. The local cardiotopodynamics as expressed via the segmentary nonhomogeneity seems to be able to contribute much into the regulation or modulation of the heart pumping function.