A new method for laryngeal electromyography.
A new method of surface electromyography (EMG) is presented, for sampling the posterior crico-arytenoid, interarytenoid and crico-pharyngeal sphincter. The results obtained in normal volunteers are discussed and the indications for laryngeal electromyography (LEMG) outlined. It has the advantage of being non-invasive and safe, and can be done as an out-patient procedure with minimal discomfort to the patient, and unassociated complications. This has provided a new and fascinating field of investigation in neuromuscular disorders of the larynx. The same principles of surface EMG may also be applied to the muscles of the tongue, palate, pharynx . . . and surface EMG in the upper respiratory tract may become a valuable method of clinical investigation.
D002648:Child; D004566:Electrodes / Q000592:standards; D004576:Electromyography / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D007818:Laryngeal Diseases / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D007821:Laryngeal Muscles / Q000503:physiopathology*; D009132:Muscles / Q000503:physiopathology*; D010300:Parkinson Disease / Q000150:complications; D012791:Shy-Drager Syndrome / Q000150:complications