THE STATE OF MECHANISMS OF AUTONOMIC REGULATION IN ARTERIAL-HYPOTENSION

To investigate the role of suprasegmental and segmental parts of auton omic nervous system (ANS) in genesis of arterial hypotension (AH) 75 i ndividuals with arterial hypotension as well as 30 healthy persons wer e examined using clinical and psychological methods, evaluation of the state of ANS segmental part by means of evoked skin sympathetic poten tials, spectral analysis of the variability of the heart rhythm, 5 sta ndard cardiovascular tests according to Ewing, The conclusion was made that individuals with AH had combination of alterations of both emoti onal-personality sphere and autonomic functions in all systems of orga nism tested. Exactly they had psychoautonomic syndrome presenting as c ombination of asthenic manifestations, elements of Reynaud phenomenon and headaches pronounced differently (headaches of tension more freque ntly). Clinical alterations were combined with changes of indices of f unctional testing, that reflected disorders in some link of sympatheti c regulation including baroreflex one. Decompensation in individuals w ith AH and change for the worse of the indices of functional testing w ere due both to the increase of psychoautonomic disorders, growing of desintegrational processes in ANS and the decrease of adaptive mechani sms in its sympathetic part.