Propofol Cardioprotection for Type II Diabetics

Propofol cardioprotection : Ten minutes prior to initiation of CPB, we will stop delivery of isoflurane, inject 1 mg/kg iv and then continuously infuse propofol at 120µg/kg/min IV until 15 min after release of the aortic cross clamp (reperfusion).

Volatile Anesthetic preconditioning : Anesthesia will be maintained using an inspired concentration of isoflurane between 0.5-2% before, during, and after CPB, without administration of propofol. For ten minutes prior to the initiation of CPB we will deliver Isoflurane 2.5% end tidal then resume maintenance anesthesia as described.