[Age-associated dynamics in blood pressure and dispersion mapping of the electrocardiogram in comparison with the incidence of mortality from circulation system diseases in residents of Magadan.].

This research assessed blood pressure and dispersion mapping in reliance on age (Myocardium and Rhythm indices), the incidence of their deviations from the standard values in comparison with the tendency in mortality from diseases of the blood circulation system. For this purpose, we studied test results of 602 men and 776 women (total 1 378 people) aged 17-90 years who permanently inhabited Magadan city and underwent medical examination in 2016-2019, and mortality rates from circulatory system diseases during this period were estimated. The research showed a strong link of the increasing age to the growth in the blood pressure variables, with hypertensive focus, and the deviations in the ECG dispersion characteristics of the Myocardium and Rhythm indices tended to grow bigger.

[The assessment of right ventricular structure and function in patients with different cardiovascular diseases using modern echocardiographic technologies and magnetic resonance imaging].

Aim: To perform comparative analysis of right ventricular (RV) structure and function in patients with various cardiovascular diseases using modern echocardiographic technologies in comparison with magnetic resonance imaging (MRI).

Materials And Methods: The study included 85 patients. Group 1 consisted of 32 patients with idiopathic pulmonary hypertension (IPH) (mean age 35.

[The influence of orthostatic test on changes of the heart rate variability observed in aboriginals of Magadan region].

255 adolescents, aged 13-17, from the north native minorities underwent an active orthostatic test to study the changes in the heart rate variability accounting for the subjects original vegetative types of the nervous regulation. The analysis of interquartile ranges of the heart rate variability values enabled to find individual peculiarities of regulatory mechanisms of reciprocal relationships between parasympathetic and sympathetic components of the vegetative nervous system. The findings testified that, irrespectively of the age, up to 45% of the examinees had optimal levels of reactivity and balance of the components of the vegetative nervous system.

[Age-related changes in the heart rate variability and hemodynamics shown by aboriginals in dependence on the leading type of vegetative nervous regulation].

We examined native minority adolescents (aborigines) to study somatometric and cardiohemodynamic characteristics in dependence on the leading type of vegetative nervous system. As result from the study, the age-related morphofunctional changes observed during the examined period of ontogenesis can be considered as heterochronic. Of note that, the hopping periods which occur in changes of somatometric and heart rate variability indices, can differ in dependence on the prevailing type of vegetative nervous system.

[Relationships between the lipid metabolic parameters and the humoral factors of natural immunity in children and adolescents].

With age, antiatherogenic defense in North aboriginal children is regulated by the humoral mechanisms of immunity, by increasing the levels of immunoglobulins (IgG, IgA), interleukin-4, and tumor necrosis factor-a and decreasing the content of interleukin-8 and interferon-alpha in particular, by reflecting the ability of the immune system to maintain and reduce the atherogenicity of blood lipids.