What is the role of EMG in the workup of cricoarytenoid (CA) fixation?

Updated: Jul 27, 2021
  • Author: Paul C Bryson, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Electromyography of the thyroarytenoid, cricothyroid, and posterior cricoarytenoid (CA) muscles help to clarify the status of laryngeal innervation. In general, a normal pattern of laryngeal-muscle activation and recruitment is expected in a patient with isolated cricoarytenoid (CA) fixation.

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