Clinical Research Directory

Inclusion Criteria: Patients aged 65 years and older who are scheduled to undergo surgical treatment for hip fracture, classified as ASA physical status I-IV, and who have signed the informed consent form will be included in the study. Exclusion Criteria: Patients with complex fractures (multiple fractures, extremity, abdominal, pelvic or sacral trauma, head trauma, etc.), those with relative contraindications to general anesthesia (e.g., known difficult airway, malignant hyperthermia), patients requiring postoperative intubated intensive care follow-up, those with a history of dementia, sleep disorders, or psychosis, individuals with serious neurological diseases (e.g., Parkinson's disease, stroke sequelae), those with a history of opioid, alcohol, or substance use, patients with cerebrovascular disease, those who underwent surgery within the past 6 months, patients with hearing or vision impairment, bleeding disorders or those taking medications affecting coagulation, patients with hypoalbuminemia (\<3 g/dL), preoperative anemia with hematocrit \<30%, known allergy to anesthetic drugs, severe cardiopulmonary failure, immobility, malnutrition, or those who are unable to comply with the study protocol will be excluded from the study.