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Related Experiment Videos

Practice parameter: laryngeal electromyography (an evidence-based review).

Robert T Sataloff1, Steven Mandel, Eric A Mann

  • 1Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University, Philadelphia, PA, USA.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|June 15, 2004
PubMed
Summary

Laryngeal electromyography (EMG) may aid adductor spasmodic dysphonia treatment by guiding botulinum toxin injections. However, evidence is lacking for other laryngeal disorders, highlighting a need for further research.

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Area of Science:

  • Neurology
  • Otolaryngology
  • Medical Technology

Background:

  • Laryngeal electromyography (EMG) is a technique used for diagnosing and treating various neurolaryngological disorders.
  • Laryngeal movement disorders encompass conditions like spasmodic dysphonia and vocal fold paralysis.

Purpose of the Study:

  • To conduct an evidence-based review of laryngeal EMG's utility in diagnosing, prognosing, and treating laryngeal movement disorders.
  • To assess the clinical application of laryngeal EMG based on a systematic literature review.

Main Methods:

  • Systematic review of medical literature from 1944 to 2001.
  • Inclusion criteria applied to 584 retrieved articles, with 33 meeting the predefined standards.
  • Analysis of evidence regarding laryngeal EMG in specific conditions like adductor and abductor spasmodic dysphonia.

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Main Results:

  • Laryngeal EMG demonstrated benefit in guiding botulinum toxin injections into the thyroarytenoid muscle for adductor spasmodic dysphonia.
  • No significant difference or treatment benefit was found between laryngeal EMG-guided and endoscopic injections for abductor spasmodic dysphonia.
  • Insufficient evidence exists to support or refute laryngeal EMG's value for other investigated uses, despite anecdotal support.

Conclusions:

  • Laryngeal EMG is possibly useful for botulinum toxin injections in treating adductor spasmodic dysphonia.
  • Further evidence-based research is urgently needed to establish the value of laryngeal EMG in other neurolaryngological applications.
  • The current evidence base for laryngeal EMG in diagnosing and treating diverse laryngeal disorders remains limited.