This study evaluates the effect of using remifentanil during cardiopulmonary bypass surgery to supress the hyperglycemic response in perioperative period. Half of the participants will receive continuous intravenous remifentanil during surgery, while the other half will receive intermittent intravenous fentanyl during surgery. Intermittent intravenous fentanyl administration is this institution's standard of care.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Blood Glucose Values (More Than One ) > 180 mg%
Timeframe: Intraoperative period