Practice guideline update summary: Mild cognitive impairment [RETIRED]: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology.
Level 1 - systematic review of randomized trials
Practice guideline based on a systematic review of the literature
PubMed 29282327 · doi:10.1212/WNL.0000000000004826
What was done
The American Academy of Neurology (AAN) updated its 2001 clinical practice guideline on mild cognitive impairment (MCI). A multidisciplinary panel conducted a systematic review of literature on MCI prevalence, prognosis, and therapeutic interventions according to AAN evidence classification criteria. Recommendations were derived from the synthesized evidence combined with a modified Delphi consensus process.
What was found
MCI prevalence was reported as 6.7% for ages 60-64, 8.4% for ages 65-69, 10.1% for ages 70-74, 14.8% for ages 75-79, and 25.2% for ages 80-84. In individuals aged 65 and older with MCI followed for 2 years, cumulative dementia incidence was 14.9%. No high-quality evidence existed to support pharmacologic treatments. Six months of exercise training was found likely to improve cognitive measures, and cognitive training may improve cognitive measures.
Why it matters
This guideline defines evidence-based clinical management for MCI, emphasizing non-pharmacologic interventions like exercise and cognitive monitoring over medications that lack efficacy evidence.
Limits
The abstract does not report the total number of studies or participants analyzed, nor does it provide quantitative effect sizes or confidence intervals for the cognitive interventions. The guideline carries a retired status.
Cited by
- supports American Academy of Neurology practice guidelines for mild cognitive impairment listed exercise as the top intervention among 12 options, above drugs like memantine and donepezil.
- supports A 2017 practice guideline published in Neurology by the American Academy of Neurology evaluated 14 interventions for mild cognitive impairment and concluded only physical exercise was effective in slowing cognitive decline.