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A new method for laryngeal electromyography

G M Guindi, T W Higenbottam, J K Payne

    Clinical Otolaryngology and Allied Sciences
    |August 1, 1981
    PubMed
    Summary
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    A novel non-invasive surface electromyography (EMG) technique safely measures laryngeal muscle activity. This method offers a valuable new approach for investigating laryngeal neuromuscular disorders.

    Area of Science:

    • Neurology
    • Otolaryngology
    • Biomedical Engineering

    Background:

    • Laryngeal electromyography (LEMG) traditionally involves invasive procedures.
    • Assessing neuromuscular function of laryngeal muscles is crucial for diagnosing various disorders.
    • Existing methods can be uncomfortable and carry risks for patients.

    Purpose of the Study:

    • To introduce and validate a new non-invasive surface electromyography (EMG) method for laryngeal muscle assessment.
    • To outline the indications and potential applications of this novel LEMG technique.
    • To explore the feasibility of applying surface EMG principles to other upper airway muscles.

    Main Methods:

    • Surface electromyography (EMG) was utilized to sample muscle activity.
    • Specific muscles targeted include the posterior crico-arytenoid, interarytenoid, and crico-pharyngeal sphincter.

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  • The procedure was conducted on normal volunteers.

    • Main Results:

    • The non-invasive surface EMG method demonstrated feasibility for sampling laryngeal muscle activity.
    • Results obtained from normal volunteers provide a baseline for comparison.
    • The technique was found to be safe, non-invasive, and well-tolerated by out-patients.

    Conclusions:

    • Surface EMG offers a safe, non-invasive, and comfortable alternative for laryngeal muscle assessment.
    • This technique opens new avenues for investigating laryngeal neuromuscular disorders.
    • The principles of surface EMG may be extendable to other muscles in the pharynx and tongue for broader clinical applications.