Abstract
Bisphosphonates are the first line treatment options in the prevention and treatment of osteoporosis among elderly women or men. Age associated cognitive decline may increase due to adverse effects of medications. The aim of the present study was to observe the course of cognitive skills in elderly subjects treated with a bisphosphonate. This prospective study enrolled 120 community-dwelling, non-demented women and men with osteoporosis aged 65 and older who were treated with first-ever zoledronic acid. Mini mental state examination (MMSE) was measured along with geriatric depression scale (GDS) measurement, clock drawing test (CDT), and other clinical and laboratory evaluations that could affect cognition at baseline and 12 months. The primary outcome was at least one point decrease in the final MMSE score at one year. Scores of MMSE (28.29±2.17 and 28.23±2.37, p=0.681), GDS (3.24±2.88 and 2.96±2.88, p=0.062) and CDT (3.69±0.68 and 3.75±0.60, p=0.268) did not change after zoledronic acid infusion at one year. Education in years and presence of newly started medicines with anticholinergic properties was independently associated with at least one point reduction in MMSE score [odds ratio: 3.07 (%95 confidence interval: 1.00-9.44)]. Among elderly woman and men with osteoporosis, cognitive functions remained stable 12 months after the administration of first-ever zoledronic acid.
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