laryngeal electromyography
Pronunciation: lar-in-JEE-al ee-lek-tro-my-OG-ra-fee
Invasive procedure measuring electrical activity in laryngeal muscles to diagnose vocal fold paralysis and other neurological voice disorders.
Full Definition
Laryngeal electromyography (LEMG) is a specialized diagnostic procedure that records electrical activity from the intrinsic muscles of the larynx using needle electrodes. This technique is primarily used to differentiate between mechanical fixation and neurological impairment in cases of vocal fold immobility, assess the degree of denervation in vocal fold paralysis, and evaluate recovery potential. LEMG provides valuable prognostic information for voice therapy planning and surgical decision-making in patients with suspected laryngeal neuropathy.
Usage
Usage note: Commonly abbreviated as LEMG in clinical documentation. Hyphenate the adjective form when used as a compound modifier.
In Context
- "Laryngeal electromyography confirmed denervation of the right posterior cricoarytenoid muscle." — Diagnostic report
- "The patient was referred for laryngeal electromyography to determine whether vocal fold immobility was due to paralysis or mechanical fixation." — Clinical referral