Hidden afterdischarges in slow channel congenital myasthenic syndrome.


Journal Article

Afterdischarges in motor nerve stimulation studies help distinguish slow channel congenital myasthenic syndrome (SCCMS) from acquired myasthenia gravis (MG) We present a patient with fatigable weakness in whom afterdischarges were not initially apparent. After she failed to respond to treatment for MG, afterdischarges were demonstrated in some, but not all, of her muscles. Genetic testing confirmed SCCMS. This case indicates that electrophysiological distinction between SCCMS and MG may require motor nerve stimulation studies in multiple muscles.

Full Text

Duke Authors

Cited Authors

  • Bedlack, RS; Bertorini, TE; Sanders, DB

Published Date

  • June 2000

Published In

Volume / Issue

  • 1 / 4

Start / End Page

  • 186 - 190

PubMed ID

  • 19078585

Pubmed Central ID

  • 19078585

Electronic International Standard Serial Number (EISSN)

  • 1537-1611

International Standard Serial Number (ISSN)

  • 1522-0443


  • eng