title: A primer on electrophysiologic studies in myopathy.
abstract: Electromyography and nerve conduction studies are the primary electrodiagnostic studies employed in the evaluation of patients with weakness and suspected myopathy. This article discusses the physiologic principles that serve as a framework for understanding the purpose, limitations, and interpretation of these tests. In the process the authors also review the differential diagnosis of myopathy.
authors: Department of Neurology, Dartmouth Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, NH 03756, USA.
authors: Matthew C
authors: MC
authors: Lynch
authors: Jeffrey A
authors: JA
authors: Cohen
mesh_terms: D004568:Electrodiagnosis / Q000379:methods*; D004576:Electromyography; D055724:Electrophysiological Phenomena; D006801:Humans; D009046:Motor Neurons / Q000473:pathology / Q000502:physiology; D018908:Muscle Weakness / Q000175:diagnosis / Q000503:physiopathology*; D018482:Muscle, Skeletal / Q000473:pathology / Q000503:physiopathology; D009220:Myositis / Q000175:diagnosis / Q000503:physiopathology*; D009422:Nervous System Diseases / Q000175:diagnosis / Q000503:physiopathology*