Preservation of oxidative metabolism in the face of ischemic insult is required for maintenance of myocardial viability and is a primary determinant of functional improvement following revascularization. Hyperinsulinemic euglycemic clamps will be done during FDG - PET scanning of myocardium to stabilize substrate entry into cells. In routine studies Beckman gluocses will be done during the study to detect and treat hyperglycemia.
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