[The neurohumoral regulation and energy support of the myocardium in patients with heart rhythm disorders].

Diagnostic electrocardiostimulation (ECS) of the right atrium with evaluation of the functional state of the heart conduction system and coronary reserve was carried out in 177 patients. The level of blood catecholamines, activity of cholinesterase and content of destroyed acetylcholine, cortisol, free fatty acids, glucose, insulin, thyroxine, triiodothyronine, renin, testosterone, calcium was determined before and at the height of diagnostic ECS. In cases with a tendency to bradycardia one could note compensatory tension of the sympathetic-adrenal system and mechanisms of general adaptation.

[Physical load tolerance and lipid metabolic indices in patients with the initial manifestations of ischemic heart disease].

Analysis of tolerance to physical load and blood lipid composition in 28 patients with the first clinical symptoms of coronary insufficiency and in 93 patients with cardialgia showed that diminished load tolerance with impaired induces of lipid metabolism is encountered more frequently (77.5%) than isolated hyperlipoproteinemia (15.2%) and low load tolerance without hyperlipoproteinemia (7.

[Intravascular disorders of microcirculation and microthrombus formation in patients with chronic ischemic disease of the heart].

Most of the 104 patients with ischaemic heart disease had distinct functional and structural microcirculation disorders. The slugging syndrome was revealed in 98% of the cases. In 56% of the patients microthrombus formation was noted in the microcirculatory bed, as well as a reduction of the perfusion capillary blood flow and an increase of the shunting flow, the half-resorption of sodium-131I from the skin and muscle depot being decreased.