[The hemodynamics and activity of the sympathetic-adrenal system in air traffic controllers during their professional duties].

A functional status of the circulation and catecholamines excretion in air traffic controllers operating in two shifts (morning and daytime duties) and attending a Start air traffic control system have been assessed. It is shown that a correlations pattern between parameters under study is significantly altered depending on an occupational activity time. The dependence of hemodynamic shifts on an activity of hormonal and mediator components of sympathetic-adrenal system, an accomplishment of the catecholamine effects on cardiovascular activity with an involvement of alpha- and beta-adrenoreceptor system are shown.

[Reactions of cerebral vessels to hyperbaric oxygenation in the normal state and in patients with cerebral ischemia].

During initial sessions of hyperbaric oxygenation (HBO), the reduction of the pulse blood content in health (with no cerebral injury) is not pronounced and does not reach the significant level whereas in the course of final sessions it does not almost manifest itself. In contrast to that, in the main group of patients (with sequels of ischemic insult), the above reaction manifests itself more clearly, being statistically significant both in the course of initial and final HBO sessions, which demonstrates greater vasoconstrictor preparedness. That reaction is especially remarkable in the hemisphere of predominant injury (HPI) whereas in the relatively preserved hemisphere, it is slightly weaker and occupies as if an intermediate place between the HPI and normal.