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Induction and Clinical Scoring of Chronic-Relapsing Experimental Autoimmune Encephalomyelitis

Induction and Clinical Scoring of Chronic-Relapsing Experimental Autoimmune Encephalomyelitis

Published on: July 4, 2007

Characterizing cognitive function in patients with autoimmune encephalitis: an Australian prospective study.

Sarah P Griffith^1,2, Robb Wesselingh^1,2, Nabil Seery^1,2

¹Department of Neurosciences, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Level 6, Alfred Centre, 99 Commercial Road, Melbourne, VIC, 3004, Australia.

Journal of Neurology

|September 14, 2023

Summary

Cognitive deficits in perceptual reasoning, processing speed, and working memory persist in autoimmune encephalitis (AE) patients long-term. While many recover, significant heterogeneity in cognitive outcomes necessitates thorough assessment and further research.

Keywords:

Autoimmune diseases Autoimmune encephalitis Cognitive outcomes Neuropsychology

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Induction and Diverse Assessment Indicators of Experimental Autoimmune Encephalomyelitis

Induction and Diverse Assessment Indicators of Experimental Autoimmune Encephalomyelitis

Published on: September 9, 2022

Area of Science:

Neuroscience
Neuroimmunology
Cognitive Psychology

Background:

Autoimmune encephalitis (AE) is a neuroinflammatory condition.
Cognitive impairment is a common and significant long-term issue for AE patients.

Purpose of the Study:

To characterize the chronic-stage cognitive function in autoimmune encephalitis patients.
To utilize Wechsler intelligence and memory scales for detailed cognitive assessment.

Main Methods:

Fifty AE patients with an average 3.2-year disease duration were evaluated.
Comprehensive cognitive testing included Wechsler Abbreviated Scale of Intelligence (WASI-II), Wechsler Adult Intelligence Scale (WAIS-IV), and Wechsler Memory Scale (WMS-IV).
Statistical analyses compared patient performance to normative data.

Main Results:

AE patients showed significant deficits in perceptual reasoning, processing speed, and working memory.
Seropositive patients had below-norm processing speed; seronegative patients had reduced working memory and processing speed.
Delayed memory was impaired only in seronegative patients, with varied cognitive outcomes observed.

Conclusions:

Chronic AE patients exhibit specific cognitive deficits, particularly in perceptual reasoning, processing speed, and working memory.
Long-term cognitive outcomes vary, with many patients experiencing intact cognition, but heterogeneity exists among those with impairments.
Findings underscore the need for comprehensive neuropsychological assessments in AE outpatient settings and suggest future research into executive functions.