[Disorders of O2 transport and their correction in heart surgery patients]

Basic factors of O2 transport disturbances and mechanisms of their compensation have been studied in 1200 patients after cardiac surgery. It has been shown that O2 transport decrease is induced by damages in oxygenating blood function, decreased cardiac performance and hemoglobin blood level, oxyhemoglobin dissociation curve deviation and changes in Hb affinity to O2 with regard to 2,3-DPG content. The causes of arterial O2 transport damage affect the treatment procedures, including oxygen therapy, controlled lung ventilation, erythrocyte mass transfusion, inotropic drug administration, hypothermia.