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  • Title: Different distribution of demyelination in chronic inflammatory demyelinating polyneuropathy subtypes.
    Author: Shibuya K, Tsuneyama A, Misawa S, Sekiguchi Y, Beppu M, Suichi T, Suzuki YI, Nakamura K, Kano H, Kuwabara S.
    Journal: J Neuroimmunol; 2020 Apr 15; 341():577170. PubMed ID: 32006783.
    Abstract:
    In demyelinating polyneuropathies, distribution patterns of demyelination reflect underlying pathogenesis. Median and ulnar nerve conduction studies were reviewed in 85 typical chronic inflammatory demyelinating polyneuropathy (CIDP) patients and 29 multifocal acquired demyelinating sensory and motor neuropathy (MADSAM). Distal latencies were prolonged in typical CIDP and near normal in MADSAM. Abnormal amplitude reductions in the nerve trunks were more frequent in MADSAM than typical CIDP. Presumably because the blood-nerve barrier is anatomically deficient at the distal nerve terminals, antibody-mediated demyelination is a major pathophysiology in typical CIDP. In contrast, blood-nerve barrier breakdown is likely to be predominant in MADSAM.
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