Cognitive impairment in patients with Parkinson ’s disease: A 30-month follow-up study

Parkinson ’s disease (PD) was once considered a disorder of movement solely, but evidence now indicates that cognitive impairment very common and a progressive feature of PD [1]. Whether mild or constituting dementia, cognitive impairment in PD significantly affects patients’ survival and quality of life [2].
Source: Clinical Neurology and Neurosurgery - Category: Neurosurgery Authors: Source Type: research