[Comparative evaluation of impedance cardiographic and dye dilution methods in determining hemodynamic indices].

The norms of cardiac output and general peripheral resistance in 81 healthy subjects were determined by impedance-cardiography. The same hemodynamic indices were also studied in 150 patients with ischemic heart disease, idiopathic myocardiopathies, hypertonic disease and acquired valvular diseases in a state of compensation or cardiac insufficiency. The methods of impedance-cardiography and dye dilution were used. A high correlation dependence was found between the results, obtained by the two methods. Discrepancies in the individual results were observed only in the cases with mitral and aortic insufficiency combined mitral and mitral-aortic valvular defects. The author recommends the impedance-cardiography as a reliable method for a wide application in the clinical practice.