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Related Experiment Videos

Minimally invasive device to effect vocal fold lateralization.

C W Cummings1, E E Redd, W H Westra

  • 1Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University, Baltimore, Maryland 21287, USA.

The Annals of Otology, Rhinology, and Laryngology
|October 20, 1999
PubMed
Summary

A new, minimally invasive device offers a promising, reversible solution for vocal fold paralysis, potentially improving airway and voice function. Animal studies show optimism for human clinical application.

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Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Surgical Innovation

Background:

  • Bilateral vocal fold abductor paralysis significantly impacts airway and phonatory function.
  • Current surgical treatments like arytenoidectomy and tracheotomy have limitations in dependability and reversibility.
  • There is a critical need for reliable, tunable, and reversible interventions for vocal fold dysfunction.

Purpose of the Study:

  • To introduce and evaluate a novel, minimally invasive, tunable, and reversible device for vocal fold lateralization/medialization.
  • To assess the preliminary clinical effectiveness of this device in an animal model.
  • To determine the potential for this device as an alternative to current treatments for vocal fold paralysis.

Main Methods:

  • Development of a device comprising a polyethylene collar, Vitallium cam, and double-helix core.

Related Experiment Videos

  • Introduction of the device via a modified thyroplasty approach through the thyroid cartilage.
  • Evaluation of device effectiveness in 9 sheep using photographic and video documentation.

    • Main Results:

    • The device demonstrated potential for vocal process lateralization and medialization in the animal model.
    • Photographic and video documentation supported the device's functional capabilities.
    • The animal study results provide substantial optimism for future human clinical applications.

    Conclusions:

    • The novel device presents a potentially dependable, tunable, and reversible surgical option for vocal fold paralysis.
    • Minimally invasive approach and promising animal study outcomes warrant further investigation in human trials.
    • This innovation may offer an improved alternative to existing treatments, enhancing airway and phonatory outcomes.