Functional Capacity of the Heart in Progressive Convulsive Readiness.

Different levels of progressive convulsive readiness variously influence the dynamics of changes in heart rate variability parameters, inotropic and lusitropic reserves of the myocardium, which reflects the dependence of cardiac function on the level of convulsive readiness. Its increase is accompanied by a shift in autonomic balance towards potentiation of sympathetic influences on the heart, as well as a decrease in not only systolic, but also diastolic function, which reduces functional capacity of the heart and can lead to decompensation and prenosological state.