ORIGINAL CONTRIBUTION Early Postoperative Cognitive Dysfunction and Blood Pressure During Coronary Artery Bypass Graft Operation

change in blood pressure during coronary artery bypass graft operations and early cognitive dysfunction. Design: Cohort study. Setting: Quaternary care facility. Patients: Fifteen patients undergoing coronary artery bypass graft operations who were at high risk for postoperative stroke. Preoperative and intraoperative mean arterial pressures (MAPs) were measured in all patients. Intervention: A subset of patients underwent preoperative and postoperative magnetic resonance imaging. Main Outcome Measure: Change in cognitive per-formance, using theMini-Mental State Examination and other simple cognitive tests