Day of surgery: Brain MRI immediately preop. Anesthesia/CPB per our standard practice (fentanyl 100-200 mcg/kg, midazolam, isoflurane, epsilon-aminocaproic acid, 75 mg/kg IV load to patient and CPB prime, and 75 mg/kg/hr infusion in OR) with ACP guided by TCD, pH stat, hct 30-35, avoid DHCA.