FEATURES OF CEREBRAL HEMODYNAMICS IN PEOPLE OF PRE-RETIREMENT AGE

The article is devoted to the study of cerebral hemodynamics in people of pre-retirement age, differentiated by age and sex criteria and types of systemic circulation (women (n = 104), men (n = 83). Objective: to research of the features of cerebral hemodynamics in people of pre-retirement age. Evaluation of blood supply to the brain was carried out at rest using the reoencephalographic method. The reoencephalographic examination was performed in 4 leads (FM, OM left hemisphere; FM, OM right hemisphere). Indicators were registered: integral index of pulse filling, amplitude-frequency index, rheographic index and time of propagation of the rheographic wave, average vessel filling rate, venous outflow, dicrotic index, diastolic index and coefficient of asymmetry. The type of systemic circulation was determined using the cardiac index. The predominance of the hypokinetic type in elderly men and women causes significant changes in the ratio of cerebral blood flow to its outflow and indicates a decrease in adaptive reactions of the circulatory system. Many men and older women have a hypo-kinetic circulating type, which may be an unfavorable feature. People of pre-retirement age with hyperkinetic type of blood circulation can be classified as a risk group, because they have significant deviations of rheoencephalography parameters from the physiological norm. Changes in the ratio of regional blood inflow to outflow in people over 50 years of age are markers of a decrease in adaptive reactions of the circulatory system. The limit of vasoconstrictor reactions caused by the aging of the body is the cause of deterioration of the conditions of regional blood outflow. The revealed deviations of rheoencephalography parameters from the physiological norm should be taken into account when conducting functional tests, as well as in programs of prenosological diagnostics, organization of healing and preventive measures.