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Multifocal motor neuropathy without overt conduction block
Author(s) -
Pakiam Anthony S.I.,
Parry Gareth J.
Publication year - 1998
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/(sici)1097-4598(199802)21:2<243::aid-mus14>3.0.co;2-2
Subject(s) - multifocal motor neuropathy , mismatch negativity , medicine , electrophysiology , electrodiagnosis , motor nerve , electromyography , nerve conduction , block (permutation group theory) , neuroscience , audiology , anatomy , psychology , cardiology , physical medicine and rehabilitation , surgery , electroencephalography , geometry , mathematics , psychiatry
One of the defining electrophysiological characteristics of multifocal motor neuropathy (MMN) is focal motor nerve conduction block. We have noted occasional patients with typical clinical features of MMN in whom there is no demonstrable conduction block. Upon review of 5 such cases, we conclude that otherwise typical MMN may present without overt conduction block. This subset of patients does not otherwise differ from patients with MMN in whom this hallmark electrodiagnostic feature is present. © 1998 John Wiley & Sons, Inc. Muscle Nerve 21: 243–245, 1998.