Evaluation of myocardial relaxation in conditions of cardiac remodeling.

The term cardiodynamics refers to dynamic events associated with cardiac contraction and relaxation. The occurring wave of excitement spreads very quickly along the entire atrial musculature and after a brief AV retention it affects all muscle cells of the ventricles. Excitation, that is, the increase in action potentials, precedes the contraction of the myocardium, which follows the "all or none" rule.

[The use of combined hyperbaric oxygenation and erythropoietin in the treatment of cardiac insufficiency].

Introduction: The aim of this research is to evaluate therapy efficiacy of hyperbaric oxgenation (HBO) with regenerative effects on human tissues and erythropoietin, as a nonspecific growth factor.

Material And Methods: This study included a group of 9 patients with echocardiographically diagnosed cardiac insufficiency with ejection firaction (EF%) under 60%. HBO was used according to the protocol for patients with severe cardiac insufficiency (a total of 15 treatments).

[Effects of platelet single passage on coronary circulation in the isolated guinea-pig heart: focus on the L-arginine: nitric oxide system].

Introduction: In order to evaluate endothelial response to platelet single passage through coronary vascular bed, experiments on isolated guinea-pig hearts perfused by the Langendorff method at constant pressure were performed.

Material And Methods: Platelet single passage was performed with platelet-rich plasma obtained from healthy volunteers, as well as from patients with acute myocardial infarction. Hearts, isolated from guinea-pigs of either sex were perfused with Krebs-Hensenleit buffer.