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The impact of mild cognitive impairment on functional abilities in the elderly
Steven M Albert1, Matias H Tabert, Alan Dienstag
1Gertrude H. Sergievsky Center, 630 West 168th Street, PH-19, Columbia University, New York, NY 10032, USA. sma10@columbia.edu
Abstract:
Mild cognitive impairment (MCI) covers a spectrum of cognitive impairment, bordered by normal cognitive performance on one end and frank dementia on the other. How wide the net for MCI is cast will affect the prevalence and severity of its functional consequences. Many studies suggest that MCI is an early stage of Alzheimer's disease. Therefore, investigation of the functional impact of MCI offers an important opportunity to examine the quality-of-life impact of a prodromal stage of Alzheimer's disease. In this review, the authors examine the nosology of the condition, the subjective experience of having an MCI diagnosis, and cross- sectional and prospective studies that have examined the topic.
Insights
Mild cognitive impairment (MCI) is a condition between normal cognition and dementia. Understanding its functional impact is crucial for assessing quality of life in early Alzheimer's disease stages.
Area of Science:
- Neurology
- Gerontology
- Psychology
Background:
- Mild cognitive impairment (MCI) represents a transitional phase between normal cognitive function and dementia.
- MCI is frequently considered a prodromal stage of Alzheimer's disease (AD).
- The definition and scope of MCI influence its prevalence and the severity of associated functional deficits.
Purpose of the Study:
- To review the nosology and subjective experience of Mild Cognitive Impairment (MCI).
- To examine the functional consequences and quality-of-life impact of MCI.
- To explore MCI as a prodromal stage of Alzheimer's disease.
Main Methods:
- Literature review of cross-sectional and prospective studies on MCI.
- Analysis of the nosological classification of MCI.
- Examination of subjective patient experiences with an MCI diagnosis.
Main Results:
- MCI exists on a spectrum, with varying definitions impacting prevalence and functional outcomes.
- Studies indicate a significant link between MCI and the early stages of Alzheimer's disease.
- Functional consequences and quality of life are demonstrably affected by MCI.
Conclusions:
- Investigating the functional impact of MCI provides critical insights into the prodromal phase of Alzheimer's disease.
- A comprehensive understanding of MCI's nosology and subjective experience is essential.
- Further research on MCI's functional consequences can inform early interventions and support strategies.