What are the clinical and electrodiagnostic criteria for definite multifocal motor neuropathy (MMN) with conduction block?

Updated: Nov 12, 2018
  • Author: Sasa Zivkovic, MD, PhD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Answer

Definite MMN, as follows: [3, 14]

  • Weakness without objective sensory loss in the distribution of 2 or more nerves is present for more than 1 month

  • Definite motor conduction block is present in at least one motor nerve with normal sensory nerve conductions

  • Exclusion criteria not present


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