title: Electrodiagnosis of myotonic disorders.
abstract: Clinical and electrical myotonia is caused by a small group of neuromuscular disorders. This article reviews myotonia and its differential diagnosis. The use of electrodiagnostic testing to evaluate the primary myotonic disorders (myotonic dystrophy and the nondystrophic myotonias) is also discussed.
authors.affiliation: Department of Neurology, University of Vermont, Burlington, VT 05401, USA. Michael.Hehir@vtmednet.org
authors.forename: Michael K
authors.initials: MK
authors.lastname: Hehir
authors.forename: Eric L
authors.initials: EL
authors.lastname: Logigian
mesh_terms: D050030:Andersen Syndrome / Q000175:diagnosis; D004558:Electric Stimulation / Q000379:methods; D004568:Electrodiagnosis; D004576:Electromyography; D005080:Exercise Test; D006801:Humans; D020967:Myotonic Disorders / Q000175:diagnosis*; D009223:Myotonic Dystrophy / Q000175:diagnosis; D020513:Paralysis, Hyperkalemic Periodic / Q000175:diagnosis