Cumulative anticholinergic exposure is associated with poor memory and executive function in older men

Area of Science:

• Gerontology
• Pharmacology
• Neuroscience

Background:

• Anticholinergic medications are widely prescribed for various conditions in older adults.
• Cognitive impairment is a growing concern in the aging population.
• The long-term effects of cumulative anticholinergic burden on cognition require further investigation.

Purpose of the Study:

• To investigate the longitudinal association between cumulative anticholinergic medication exposure and cognitive function in older men.
• To assess the impact on verbal memory and executive function.

Main Methods:

• Prospective cohort study involving 544 men aged 65+ with hypertension.
• Anticholinergic burden quantified using a clinician-rated score from primary care records.
• Cognitive outcomes measured via Hopkins Verbal Recall Test (HVRT) and Instrumental Activities of Daily Living (IADL) scale.

Main Results:

• Increased cumulative anticholinergic burden was significantly associated with poorer performance on both verbal memory (HVRT) and executive function (IADL).
• A 1-unit increase in anticholinergic burden per 3 months correlated with decreased HVRT and IADL scores.
• These associations remained significant even after adjusting for multiple potential confounders.

Conclusions:

• Cumulative exposure to anticholinergic medications over one year may adversely affect verbal memory and executive function in elderly men.
• Healthcare providers should exercise caution when prescribing anticholinergic drugs to older individuals due to potential negative cognitive effects.