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Laryngeal Electromyography-Guided Hyaluronic Acid Vocal Fold Injection for Unilateral Vocal Fold Paralysis—Preliminary Results

Conclusion
LEMG-guided HA VFI provides UVFP patients with neuromuscular function evaluation and treatment in one step. This clinical technique is feasible, and the short-term results are satisfactory.

from the Journal of Voice

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Frame by Frame Analysis of Glottic Insufficiency Using Laryngovideostroboscopy

Conclusions
FBFA appears to be a simple objective method for the novice or experienced LVS interpreter, by which one can suspect subtle GI. Because of the inherent physical properties by which LVS gives an “illusionary” representation of the glottic cycle, the FBFA technique remains a theoretical tool. Future studies using high-speed digital imaging are needed to validate this useful technique.

from the Journal of Voice

Laryngeal Electromyography: Clinical Application

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.

from the Journal of Voice