In the standard therapy group, blood glucose measurements will be performed before the induction of anesthesia,every 30 minutes during surgery, and hourly in the ICU for 24 hours. If the blood glucose was >6.1 mmol /L (110 mg /dL), an insulin infusion of 1 U/ h was started. This was then titrated according to the sliding scale (Attached), aiming at a blood glucose between 3.5 and 6.1 mmol / L (63-110 mg/dL) during surgery and 3.5 and 7.9 mmol /L (63-143 mg /dL) after surgery A common preoperative and postoperative pathway with standardized management and pain control to be implemented in both groups. In diabetic patients, the administration of oral hypoglycemic drugs will be discontinued 24 hours before surgery. If patients received insulin, the daily dose will be held the evening before surgery, and subcutaneous insulin will be administered using a sliding scale. Arterial blood glucose concentrations measured using the glucocheck. Human insulin to be administered using the concentration 100 U of insulin in 100 mL normal saline.