[Diagnostic value of laboratory indicators in various states of oxygen transport function of the blood in patients, operated on under conditions of cardiopulmonary bypass]

Changes in oxygen and acid-base balance have been studied in 86 patients with different oxygen transport function after cardiopulmonary bypass surgery. It has been shown that diagnostic value of such indexes as SO2 and pO2 in mixed venous blood, O2 consumption and transport, blood and erythrocyte acid-base balance, lactate concentration depends on the cardiac pump function, microcirculatory patterns, pulmonary oxygenation and cell metabolism. In case of acute circulatory disturbances in the early postoperative period the prognostic value of each laboratory finding is in close correlation with the degree of circulatory failure. The observation of changes in oxygen and acid-base balance in the first hours after the operation enables a more accurate diagnosis of disturbances in the inner body medium and a choice of pathogenetically verified methods of their correction in patients after cardiopulmonary bypass surgery to be made.