ArticleArquivos de neuro-psiquiatria2022
Processing speed impairment in chronic inflammatory demyelinating polyneuropathy patients: a cross-sectional study.
Article in Arquivos de neuro-psiquiatria, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Non-sensorimotor symptoms in chronic inflammatory demyelinating polyneuropathy.Journal of neurology · 2026Review
- Cognitive impairment in chronic inflammatory demyelinating polyneuropathy.Journal of neurology · 2025Article
- Inverse relation between serum neurofilament light chain and cognitive function in chronic inflammatory demyelinating polyneuropathy.Journal of neurology · 2025Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThere is a lack of evidence of cognitive involvement in chronic inflammatory demyelinating polyneuropathy (CIDP) and, the reports about the involvement of the brain and central nervous system (CNS) are few and controversial. The Five Digit Test (FDT) evaluates processing speed (PS) and executive functions orally.
objectiveTo evaluate the performance on the FDT of CIDP patients with and without CNS (brain/cerebellum) alterations observed on brain Magnetic Resonance Imaging (MRI) scans.
methodsThe Hospital Anxiety and Depression Scale (HADS, to assess neuropsychiatry symptoms), the Rasch-built Overall Disability Scale (R-ODS; to assess disability), and the FDT (to assess cognition) were applied to 14 CIDP patients and 24 age-matched healthy control subjects. The patients were submitted to routine brain MRI and, according to the results, they were divided into two groups: those with abnormalities on the MRI (CIDPabnl) and those with normal parameters on the MRI (CIDPnl). The FDT data of five CIDPnl patients and nine CIDPabnl subjects were analyzed. Comparisons between the groups were performed for each task of the FDT.
resultsWe found statistical differences for both groups of CIDP patients in terms of PS, for the patients spent more time performing the PS tasks than the controls. The PS measures were negatively associated with disability scores (
conclusionsOur data suggested the presence of PS impairment in CIDP patients. Disability was associated with slow PS.
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