P468: Interrelationship of delirium and cognitive impairment on adverse functional outcomes of older patients receiving orthopedic surgery: a prospective cohort study

Introduction: Delirium, the acute deterioration of cognitive function and attention, is the most frequent mental disorder in elderly. Its correct diagnosis and adequate management are of crucial importance for the patient’s health and functional outcome. The aim was to highlight potential intervention points to offset the risk of incurring a hip fracture and delirium its attendant disability. Methods: We conducted a retrospective chart review study carried out in our Orthogeriatric Unit. A total of 542 consecutive hip fracture, we selected those with delirium during the admission. Underwent comprehensive geriatric assessment that evaluates co morbidities, medication use, ability to perform basic activities of daily living and instrumental activities of daily living, place of residence and family support. Results: We found 163 patients with delirium and hip fracture; the mean age of our cohort was 87.23±9.6 years (76–98 years). 46 (28%) patients were male. The mean duration of the hospital stay was 13.62±9.6 days (range 2–41 days). 42.3% of the patients with pre-existing neurological conditions. In 44 patients, we were able to identify possible precipitating cause of an acute confusional state. Anemia and hyponatremia were frequent factors associated with delirium. Surgical treatment was performed 90.18%. Conclusions: • Delirium is a very prevalent condition in patients with hip fracture. • Delirium may increase the complications after hip fracture. • Patients, in whom a cause was found out, had better prognosis in terms of lesser mortality and the duration of hospital stay. P468 Interrelationship of delirium and cognitive impairment on adverse functional outcomes of older patients receiving orthopedic surgery: a prospective cohort study M.Y. Chou, C.K. Liang, C.L. Chu, Y.T. Lin, T. Lu, C.J. Hsu, L.K. Chen Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Taipei Veterans General Hospital, Taipei, Taiwan