Effects of Sevoflurane and Desflurane on Treg

After induction of anesthesia and successful intubation, 2 L/min N2O, 2 L/min O2 , and 2% to 2.5% sevoflurane will be given for 10 minutes then total flow will be decreased to 2 L/min. Anesthesia will be maintained using 1-1.5 minimal alveolar concentration (MAC) of sevoflurane in 50% O2 and 50% N2O. Ventilation will be adjusted to keep end-tidal carbon dioxide 30-35 mmHg (Tidal volume 7-10 mL/kg).

After induction of anesthesia and successful intubation, 2 L/min N2O, 2 L/min O2 , and 6% to 8% desflurane will be given for 10 minutes then total flow will be decreased to 2 L/min. Anesthesia will be maintained using 1-1.5 minimal alveolar concentration (MAC) of desflurane in 50% O2 and 50% N2O. Ventilation will be adjusted to keep end-tidal carbon dioxide 30-35 mmHg (Tidal volume 7-10 mL/kg).