Laryngeal Electromyography: Clinical Application

Laryngeal Electromyography: Clinical Application

Summary Laryngeal electromyography (LEMG) is a valuable adjunct in clinical management of patients with voice disorders. LEMG is valuable in differentiating vocal fold paresis/paralysis from cricoarytenoid joint fixation. Our data indicate that visual assessment alone is inadequate to diagnose neuro...

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Bibliographic Details
Published in:Journal of voice Vol. 24; no. 2; pp. 228 - 234
Main Authors: Sataloff, Robert T, Praneetvatakul, Phurich, Heuer, Reinhardt J, Hawkshaw, Mary J, Heman-Ackah, Yolanda D, Schneider, Sarah Marx, Mandel, Steven
Format: Journal Article
Language:English
Published: United States Mosby, Inc 01-03-2010
Subjects:
Adolescent
Adult
Aged
Aged, 80 and over
Child
Diagnosis, Differential
Electromyography
Electromyography - methods
Female
Humans
Laryngeal electromyography
Laryngoscopy - methods
Larynx - physiopathology
Male
Middle Aged
Motion
Otolaryngology
Severity of Illness Index
Stroboscopy - methods
Treatment Outcome
Video Recording - methods
Vocal Cord Paralysis - diagnosis
Vocal Cord Paralysis - physiopathology
Vocal Cord Paralysis - therapy
Vocal Cords - physiopathology
Vocal fold fixation
Vocal fold paralysis
Vocal fold paresis
Voice Disorders - diagnosis
Voice Disorders - physiopathology
Voice Disorders - therapy
Young Adult
Electromyography
Laryngeal electromyography
Vocal fold paralysis
Vocal fold paresis
Vocal fold fixation
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Summary:Summary Laryngeal electromyography (LEMG) is a valuable adjunct in clinical management of patients with voice disorders. LEMG is valuable in differentiating vocal fold paresis/paralysis from cricoarytenoid joint fixation. Our data indicate that visual assessment alone is inadequate to diagnose neuromuscular dysfunction in the larynx and that diagnoses based on vocal dynamics assessment and strobovideolaryngoscopy are wrong in nearly one-third of cases, based on LEMG results. LEMG has also proven valuable in diagnosing neuromuscular dysfunction in some dysphonic patients with no obvious vocal fold movement abnormalities observed during strobovideolaryngoscopy. Review of 751 patients suggests that there is a correlation between the severity of paresis and treatment required to achieve satisfactory outcomes; that is, LEMG allows us to predict whether patients will probably require therapy alone or therapy combined with surgery. Additional evidence-based research should be encouraged to evaluate efficacy further.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0892-1997
1873-4588
DOI:10.1016/j.jvoice.2008.08.005