Liraglutide in Preventing Delirium in Diabetic Elderly After Cardiac Surgery

This trial is studying whether liraglutide — a diabetes medication that also has protective effects on the brain — can prevent delirium (sudden confusion and disorientation) in older diabetic patients after heart surgery. Delirium is a common and dangerous complication following cardiac surgery, especially in the elderly. **You may be eligible if...** - You are 60 or older - You have Type 2 diabetes - You are scheduled for planned (elective) heart surgery **You may NOT be eligible if...** - You have a history of neurological or psychiatric conditions (e.g., epilepsy, Parkinson's disease, severe dementia, schizophrenia) - You have Type 1 diabetes - You have a history of pancreatitis (inflammation of the pancreas) - You have severe heart failure (NYHA Class IV) - You have severe liver or kidney disease requiring dialysis - You have difficulties with communication (severe hearing, vision, or speech problems) - Your blood sugar levels are difficult to control in the normal range during screening Talk to your doctor to see if this trial is right for you.