Mild cognitive impairment in patients with Parkinson's disease: An updated mini-review and future outlook

Area of Science:

• Neurology
• Neuroscience
• Cognitive Science

Background:

• Mild cognitive impairment (MCI) is a common non-motor symptom in Parkinson's disease (PD).
• MCI signifies a transitional stage between normal aging and dementia, acting as a dementia predictor.
• Existing diagnostic criteria for PD-MCI lack consistency, hindering clinical application.

Purpose of the Study:

• To review diagnostic criteria for Parkinson's disease with mild cognitive impairment (PD-MCI).
• To focus on the heterogeneity of cognitive function and progression rates in PD-MCI patients.
• To provide insights for clinical diagnosis, early intervention, and treatment strategies.

Main Methods:

• Literature review of diagnostic criteria for PD-MCI.
• Analysis of cognitive function patterns and progression in PD-MCI.
• Discussion of unmet needs and future research directions in the field.

Main Results:

• Parkinson's disease mild cognitive impairment (PD-MCI) presents diverse cognitive profiles.
• Cognitive impairments in PD-MCI exhibit varied progression rates.
• Inconsistent diagnostic criteria complicate the identification and management of PD-MCI.

Conclusions:

• Standardized diagnostic criteria for PD-MCI are crucial for effective clinical management.
• Understanding cognitive heterogeneity is key for personalized interventions in PD-MCI.
• Further research is needed to address unmet needs and advance the field of PD-MCI.