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Anticholinergic Medication Burden and Cognitive Subtypes in Parkinson's Disease Without Dementia

Overview
Specialties Neurology
Psychology
Date 2024 May 27
PMID 38797973
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Abstract

Objective: Cognitive changes are heterogeneous in Parkinson's disease (PD). This study compared whether anticholinergic burden drives differences in cognitive domain performance and empirically-derived PD-cognitive phenotypes.

Method: A retrospective chart review contained participants (n = 493) who had idiopathic PD without dementia. Participants' medications were scored (0-3) and summed based on the anticholinergic cognitive burden scale (ACBS). We examined the ACBS' relationship to five cognitive domain composites (normative z-scores) and three (K-means clustering based) cognitive phenotypes: cognitively intact, low executive function (EF), and predominately impaired EF/memory. Analyses included Spearman correlations, analysis of covariance, and Pearson chi-squared test.

Results: Overall, phenotypes did not differ in anticholinergic burden, and (after false-discovery-rate corrections) no cognitive domains related. When comparing those above and below the clinically relevant ACBS cutoff (i.e., score ≥3), no significant phenotype or domain differences were found.

Conclusions: Anticholinergic medication usage did not drive cognitive performance in a large clinical sample of idiopathic PD without dementia.

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