A new method for laryngeal electromyography

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Abstract
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 outpatient procedure with minimal discomfort to the patient and unassociated complications. This provided a new field of investigation in neuromuscular disorders of the larynx. The same principles of surface EMG may be applied to the muscles of the tongue, palate and pharynx, and surface EMG in the upper respiratory tract may become a valuable method of clinical investigation.

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