RESUMO
Surgery and general anesthesia involve changes in adaptive compensatory mechanisms manifesting by homeostasis disturbances, specifically metabolic disorders. This report describes the dynamic characteristics of structural metabolic disorders and the external respiratory function during the immediate and early postoperative period after surgery of different duration under different anesthesias and metabolic infusions. The results indicate that general anesthesia and any surgery involve structural disorders in energy expenditures during the early postoperative period. The duration of anesthesia and surgery and methods of anesthesia determine the metabolic disturbances and external respiratory changes during the postoperative period. Addition of opioids and hypertensive glucose infusions to general anesthesia and postoperative period decreases the severity of structural metabolic disorders and external respiratory function during the early postoperative period.