The Structure of Left Ventricular Relaxation in Case of Ventriculography.

Aim: To study the relaxation structure of the left ventricle (LV) in patients who underwent ventriculography.

Material And Methods: LV ventriculography was performed in 37 patients. Before catheterization, echocardiography was performed in each patient.

Noninvasive and Invasive Study of the Pumping Function of Rat Heart in Myocardial Infarction.

The cardiohemodynamics was studied 2 and 4 weeks after myocardial infarction modeling in Wistar rats. We compared the data obtained by echocardiography (echoCG) and catheterization of the left ventricle. The myocardial infarction was modeled by ligation of the left anterior descending coronary artery.

The Role of Arterial Elasticity in Determining the Degree of Chronic Heart Failure in Myocardial Infarction.

Aim      To study the left ventricular (LV) contractile and pumping function during the recovery phase following ligation of the anterior descending coronary artery (CA).Material and methods  Cardiodynamic parameters were studied in Wistar rats 2-4 weeks after experimental myocardial infarction (MI). MI was induced by ligation of the anterior descending CA under zoletil anesthesia.

HEMODYNAMICS AND CARDIAC CONTRACTILE FUNCTION IN TYPE 1 DIABETES.

The cardiohemodynamics was studied 1 week after the administration of streptozotocin (60 mg / kg) or 2 weeks after a dose of 30 mg / kg. All rats had a significantly elevated level of glucose in the blood (up to 27-31 mM). In an echocardiographic study, about 1/3 of diabetic animals exhibited systolic dysfunction, and the remaining 2/3 - diastolic dysfunction with an increase in isovolumic relaxation time by 1.

Normalisation of diabetic heart pump function at decreased functional load.

Aim      To study left ventricular (LV) hemodynamics in presence of decreased blood inflow to the heart as well as changes in myocardial content of energy metabolites in diabetic rats.Material and methods  Diabetic cardiomyopathy is characterized by impaired heart contractility and by transition of cardiomyocyte energy metabolism fatty acids exclusively as a source of energy. This reduces the efficiency of energy utilization and increases the heart vulnerability to hypoxia.