FEATURES OF CEREBRAL AND SYSTEMIC HEMODYNAMICS IN STUDENTS WITH NORMAL AND ELEVATED BLOOD PRESSURE
The aims of this research are, firstly, to reveal the features of central and cerebral hemodynamics in students with optimal and elevated orthoarteriotony; and, secondly, to analyse cross-correlated associations of parameters of rheoencephalography and hemodynamics. Medical students aged 17 - 22 y.o. took part in the study (n=32). The cerebral hemodynamics was evaluated by means of the diagnostic device Reo-Spectre-2 (Neurosoft Company, Ivanovo). When registering REG occipito mastoid leads (OM) on the left and right were used to display the level of blood supply within vertebral arteries. Statistical analysis of the results of the study was carried out using the analytical package Statistica, 10.0. Persons with elevated orthoarteriotony have a meaningful decrease of the cerebral blood supply revealing in lower REG indexes. In persons with elevated BP lower speed parameters of arterial blood flow in brain arteries were noted, both on the right and left sides, probably due to the increase of the vascular tone (1,75±0,13 Оhm/sec and 1,33±0,11 Оhm/sec accordingly; р=0,027)/ Differences were established in comparison groups in terms of the pulse, arteriole and precapillary tones, vascular spasm and venous return, depending on the level of blood pressure. In individuals with high blood pressure there is a significant decrease in the volume of cerebral blood supply, which is manifested in the lower reographical indexes and maximum rate of rapid vascular blood-filling.