Influence of Cardiopulmonary Bypass, and Sevoflurane or Propofol Anesthesia, on Tissue Oxygen Saturation.

"Near infrared spectroscopy with INVOS oximeter during vascular occlusion test (VOT) on following timepoints:~1. 30 minutes after anaesthesia induction,~2. directly after the sternotomy,~3. during CPB - 20 minutes after aortic cross-clamping ,~4. 40 minutes after aortic cross-clamping,~5. 20 minutes after the release of the aortic cross-clamp,~6. 45 minutes after weaning of CPB."

"Premedication: lorazepam 50 μg kg-1, omeprazole 40 mg, and metoprolol 12.5 mg one hour before transport to the operating theatre.~Anaesthesia induction: 0.2 mg fentanyl, 0.3 mg/kg, etomidate, and vecuronium bromide 0.1 mg/kg for muscle relaxation, followed by a continuous infusion at the rate of 0.05 mg/kg/h until the sternum closure.~Intraoperative analgesia: fentanyl in fractions, up to the total dose of 20-30 μg/kg.~Maintenance of anaesthesia in 'Propofol' group will be accomplished using continuous intravenous infusion of propofol 2-4 mg kg/h.~Propofol infusion rate will be adjusted according to patient's haemodynamic parameters and the level of anaesthesia, as assessed with Bispectral Index (BIS), with a target range of 40-60."

"Premedication: lorazepam 50 μg kg-1, omeprazole 40 mg, and metoprolol 12.5 mg one hour before transport to the operating theatre.~Anaesthesia induction: 0.2 mg fentanyl, 0.3 mg/kg, etomidate, and vecuronium bromide 0.1 mg/kg for muscle relaxation, followed by a continuous infusion at the rate of 0.05 mg/kg/h until the sternum closure.~Intraoperative analgesia: fentanyl in fractions, up to the total dose of 20-30 μg/kg.~Sevoflurane concentration in exhaled gas will be adjusted according to patient's haemodynamic parameters and the level of anaesthesia, as assessed with BIS, with a target range of 40-60."