Electromyography of the diaphragm in neuromuscular disease.
We compared the diaphragmatic electromyographic (EMG) recordings from 32 patients with known neuromuscular disease and respiratory symptoms (23 neuropathies, 9 myopathies) to recordings from 23 normal subjects. Turns analysis of 219-ms sections, or epochs, of the EMG demonstrated a significant overlap between diagnostic groups, although some epochs from neuromuscular patients were significantly different from normal. Empirical rules were derived to infer neuropathic and myopathic involvement of the diaphragmatic EMG.
McKeown
M J
MJ
Department of Clinical Neurological Sciences, University of Western Ontario, London, Canada.
Bolton
C F
CF
D003964:Diaphragm / Q000502:physiology*; D004576:Electromyography / Q000379:methods*; D006801:Humans; D009223:Myotonic Dystrophy / Q000503:physiopathology; D009468:Neuromuscular Diseases / Q000503:physiopathology*; D011115:Polyneuropathies / Q000503:physiopathology; D011129:Polyradiculoneuropathy / Q000503:physiopathology; D012119:Respiration / Q000502:physiology