Role of activity-dependent conduction block in the diagnosis of primary demyelinating polyneuropathy

Johnny S. Salameh, Nizar Souayah, Peter S.T. Chong

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations

Abstract

Motor conduction block is one of the well-known neurophysiologic features of primary demyelinating polyneuropathy. In contrast, activity-dependent conduction block (motor conduction block after brief maximum voluntary contraction) is a "rare" neurophysiologic finding in primary demyelinating polyneuropathy. We are reporting the first known case of multifocal acquired demyelinating sensory and motor polyneuropathy with a well-documented activity-dependent conduction block of the ulnar nerve at the forearm segment that transformed into a typical motor response with abnormal temporal dispersion.

Original languageEnglish (US)
Pages (from-to)40-44
Number of pages5
JournalJournal of clinical neuromuscular disease
Volume14
Issue number1
DOIs
StatePublished - Sep 2012

All Science Journal Classification (ASJC) codes

  • Neurology
  • Clinical Neurology

Keywords

  • activitydependent conduction block
  • chronic inflammatory demyelinating polyradiculoneuropathy
  • motor conduction block
  • multifocal acquired demyelinating sensory and motor polyneuropathy
  • multifocal motor neuropathy

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