Investigation of main characteristics of systemic hemodynamics in 66 patients with ischemic heart disease before, 3 months and 1 year after myocardial revascularization has shown that coronary artery bypass surgery leads to significant improvement of active relaxation of the left ventricle and tendency to lowering of myocardial stiffness with unchanged values of parameters of transmitral blood flow velocity while balloon angioplasty produces significant improvement of elastic characteristics of left ventricular diastolic relaxation. Causes of diminished positive effect of direct revascularization are greater severity of initial impairment of coronary vascular bed, intraoperative myocardial damage, changes of pericardial carcass, partial denervation of cardiac muscle, presence of zones of non-viable myocardium.