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Differences in cognitive impairment of relapsing remitting, secondary, and primary progressive MS

S C J Huijbregts1, N F Kalkers, L M J de Sonneville

  • 1Department of Clinical Neuropsychology, Vrije Universiteit, Amsterdam, The Netherlands.

Neurology
|July 28, 2004
PubMed
Abstract

Insights

Cognitive impairments in multiple sclerosis (MS) vary by disease course. Relapsing remitting MS (RRMS) patients showed working memory deficits, while progressive MS subtypes had broader cognitive challenges.

Area of Science:

  • Neuroscience
  • Clinical Neurology

Background:

  • Multiple Sclerosis (MS) is a chronic neurological disease affecting the central nervous system.
  • Cognitive dysfunction is a common but heterogeneous symptom in MS, impacting various domains.

Purpose of the Study:

  • To compare cognitive skills across different MS phenotypes: relapsing remitting MS (RRMS), secondary progressive MS (SPMS), and primary progressive MS (PPMS).
  • To determine if distinct MS disease courses are associated with specific patterns of cognitive deficits.

Main Methods:

  • Neuropsychological assessment using the Brief Repeatable Battery of Neuropsychological Tests.
  • Inclusion of 108 RRMS, 71 SPMS, 55 PPMS patients, and 67 healthy controls.

Main Results:

  • RRMS patients exhibited deficits in higher-order working memory tasks compared to controls.
  • SPMS and PPMS patients demonstrated poorer performance across all cognitive tasks relative to controls.
  • SPMS patients showed greater working memory impairments than PPMS patients, except in tasks emphasizing processing speed.

Conclusions:

  • Cognitive profiles differ significantly among patients with various multiple sclerosis disease courses.
  • Understanding these distinct cognitive profiles is crucial for targeted interventions and patient management.

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