[Effect of hyperbaric oxygenation on pulmonary function, acid-base state and the blood gas composition in mitral heart defect patients]. / Vliianie giperbaricheskoi oksigenatsii na funktsiiu legkikh, kislotno-shchelochnoe sostoianie i gazovyi sostav krovi u bol'nykh mitral'nym porokom serdtsa.

Improvement of external respiration, acid-base balance and gas composition of blood was noted after application of a complex of therapeutic measures in combination with hyperbaric oxygenation. The fact that positive changes in external respiration were less pronounced in patients with stenosis of the left venous orifice than in those with mitral incompetence may evidently be explained by the presence of long-term and high pulmonary hypertension and certain increase in the volume of blood in pulmonary circulation in noncorrected stenosis of the left venous orifice. A decrease in metabolic acidosis is noted, which is a complication leading to deterioration of systemic and peripheral hemodynamics, inhibition and myocardial function and blood supply to the brain.

[Changes in gas metabolism and tissue oxygen balance during the hyperbaric oxygenation of patients with chronic thrombotic obliterating diseases of the extremities]. / Izmeneniia gazoobmena i kislorodnogo balansa tkanei pri giperbaricheskoi oksigenatsii u bol'nykh s khronicheskimi tromboobliteriruiushchimi zabolevaniiami konechnostei.

The study of some indices of external respiration through spirography, studies of acid-base status and oxygenation parameters of arterialized capillary blood, evaluation of tissue oxygen tension by means of polarography in 44 cases of chronic thromboobliterating disease of the extremities before and after therapy with 1.7--2.0 ata at 40 to 60 minutes exposure in single oxygen barochambers were carried out with the aim of investigation of alterations of gas exchange and tissue oxygen balance. It was found that in hyperbaric oxygenation the normalization of metabolic processes in an ischemic tissue takes place together with the elimination of oxygen deficit and deviations in acid-base status.