EEG - Guided Anesthetic Care and Postoperative Delirium

Exclusion Criteria

• •1. Refuse to participate;
• •2. Emergent surgery;
• •3. Trauma patients;
• •4. Preoperative cognitive impairment characterized by Mini-Mental State Examination (MMSE) of 23 or less;
• •5. Preoperative history of stroke, schizophrenia, major depression, Parkinson's disease, epilepsy, or dementia;
• •6. Inability to communicate in the preoperative period due to illiteracy, language difficulties, or significant hearing or visual impairment;
• •7. Inability to complete MMSE and delirium survey;
• •8. Severe cardiac disease including low-output cardiac failure defined as a preoperative left ventricular ejection fraction \< 30%, or arrhythmia with pacemaker or AICD placement;
• •9. Severe hepatic dysfunction being evaluated for liver transplantation or with a Child- Pugh Class C classification;
• •10. Severe renal dysfunction requiring renal replacement therapy before surgery;
• •11. Those with preoperative ASA classification of 4 or who are unlikely to survive for more than 3 days after surgery.