[Changes in respiration and hemodynamics in patients with cranio-cerebral injury after hyperbaric oxygenation].

Respiration, central hemodynamics, gas and acid-alkaline balance of the blood were examined in the course of hyperbaric oxygenation (HBO) sessions in 30 patients in the acute period of severe craniocerebral injury, including 15 patients with a favourable outcome and 15 patients with a subsequent lethal outcome. In the first group, HBO gave rise to a decrease in the minute respiratory volume (MRV) and, in particular, in the minute blood volume (MBV). Acid-base and gas balance of the blood remained unchanged or improved.

[Functional and diagnostic significance of a study of respiratory regulation in patients with chronic nonspecific lung diseases].

Respiratory regulation at rest and under the influence of increasing hypercapnia was investigated in patients with chronic nonspecific pulmonary diseases (CNPD) with restrictive and obstructive types of lung ventilation capacity disorder. An increase in the inspiratory activity of the central mechanisms of respiratory regulation was revealed even at the early stages of disease. The determination of this type of activity in comparison with respiratory pattern parameters could be of diagnostic value.

[Evaluation of the effect of excess intrapulmonary pressure on human respiratory function].

The parameters characterizing lung ventilation and electrical activity of expiratory muscles were investigated in six healthy young men exposed to the positive intrapulmonary pressure 20, 30 or 40 mm Hg. Gas mixtures with a varying oxygen content were used. The effect of two compensatory devices that applied different counterpressures to the body surface was evaluated.