Multifocal motor neuropathy: Current concepts and controversies
- 15 March 2005
- journal article
- review article
- Published by Wiley in Muscle & Nerve
- Vol. 31 (6), 663-680
- https://doi.org/10.1002/mus.20296
Abstract
Multifocal motor neuropathy (MMN) is now a well‐defined purely motor multineuropathy characterized by the presence of multifocal partial motor conduction blocks (CB), frequent association with anti‐GM1 IgM antibodies, and usually a good response to high‐dose intravenous immunoglobulin (IVIg) therapy. However, several issues remain to be clarified in the diagnosis, pathogenesis, and therapy of this condition including its nosological position and its relation to other chronic dysimmune neuropathies; the degree of CB necessary for the diagnosis of MMN; the existence of an axonal form of MMN; the pathophysiological basis of CB; the pathogenetic role of antiganglioside antibodies; the mechanism of action of IVIg treatments in MMN and the most effective regimen; and the treatment to be used in unresponsive patients. These issues are addressed in this review of the main clinical, electrophysiological, immunological, and therapeutic features of this neuropathy. Muscle Nerve, 2005Keywords
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