Vocal cord paresis

Jump to: navigation, search
Vocal cord paresis

WikiDoc Resources for Vocal cord paresis

Articles

Most recent articles on Vocal cord paresis

Most cited articles on Vocal cord paresis

Review articles on Vocal cord paresis

Articles on Vocal cord paresis in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Vocal cord paresis

Images of Vocal cord paresis

Photos of Vocal cord paresis

Podcasts & MP3s on Vocal cord paresis

Videos on Vocal cord paresis

Evidence Based Medicine

Cochrane Collaboration on Vocal cord paresis

Bandolier on Vocal cord paresis

TRIP on Vocal cord paresis

Clinical Trials

Ongoing Trials on Vocal cord paresis at Clinical Trials.gov

Trial results on Vocal cord paresis

Clinical Trials on Vocal cord paresis at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Vocal cord paresis

NICE Guidance on Vocal cord paresis

NHS PRODIGY Guidance

FDA on Vocal cord paresis

CDC on Vocal cord paresis

Books

Books on Vocal cord paresis

News

Vocal cord paresis in the news

Be alerted to news on Vocal cord paresis

News trends on Vocal cord paresis

Commentary

Blogs on Vocal cord paresis

Definitions

Definitions of Vocal cord paresis

Patient Resources / Community

Patient resources on Vocal cord paresis

Discussion groups on Vocal cord paresis

Patient Handouts on Vocal cord paresis

Directions to Hospitals Treating Vocal cord paresis

Risk calculators and risk factors for Vocal cord paresis

Healthcare Provider Resources

Symptoms of Vocal cord paresis

Causes & Risk Factors for Vocal cord paresis

Diagnostic studies for Vocal cord paresis

Treatment of Vocal cord paresis

Continuing Medical Education (CME)

CME Programs on Vocal cord paresis

International

Vocal cord paresis en Espanol

Vocal cord paresis en Francais

Business

Vocal cord paresis in the Marketplace

Patents on Vocal cord paresis

Experimental / Informatics

List of terms related to Vocal cord paresis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


Synonyms: Vocal cord paralysis, laryngeal nerve palsy, laryngeal paralysis, paralysis of the recurrent nerve.

Overview

Vocal cord paresis (or paralysis) is weakness of one or both vocal folds that can greatly impact daily life, employment, job choice, social interactions and leisure time pursuits. Symptoms of paresis include: hoarseness, vocal fatigue, mild to severe reduction in vocal volume, pain in the throat when speaking, shortness of breath, aspiration (food or liquids going down the trachea) with frequent resultant coughing, and in extreme cases may cause death.

Reduced vocal cord mobility may decrease the effectiveness of coughing, swallowing, or sneezing in removing mucosal wastes from the laryngeal area. The resultant accumulations may allow for viral and bacterial colonization with an increased tendency for infections and throat discomfort.

Some causes of paresis include: viral infection, cancer or tumor compressing the recurrent laryngeal nerve, intramuscular tumor limiting vocal fold movement, trauma, compression of the vocal cord nerve from intubation, or laryngopharyngeal reflux. Cardiac surgery represents a risk to normal voice function as the nerves serving the larynx are routed near the heart. Damage to this nerve during open heart surgery is not uncommon. Neurological diseases, such as Parkinson's can deteriorate vocal functions. Paresis may occur from an unknown cause (idiopathic).

Vocal paresis is diagnosed by observing the lack of (or reduced) motion of one or both cords using a laryngoscope. EMG (electromyography) may be used to measure the strength of the neuromuscular signal from the brain to the muscles controlling the vocal folds. This diagnosis can be made by a laryngologist or otolaryngologist with the assistance of a neurologist. In situations involving inflammation, recovery of normal motion of the vocal cords may return spontaneously.

Emotional and stress factors

The onset of vocal dysfunction may not display a clear physical or disease event. Under such circumstances, additional attention can be directed toward matters of recent emotional concern to the person with voice weakness.

Differential Diagnosis of Vocal Cord Paresis

In alphabetical order. [1] [2]

Surgical intervention

In the event of significant voice weakness, surgery may be required to provide temporary or permanent medialization of the vocal cords. These procedures will mechanically move the vocal cord and underlying muscular tissue toward midline (medialize) to allow a stronger "strike" against the opposite vocal cord, thus providing for a stronger and louder voice. The injection of purified animal fat is a temporary means to accomplish medialization. The surgical insertion of "buttons" of sculpted silicone or similar deformable plastic substances just inside the trachea wall will permanently medialize a vocal cord. This procedure is done under local anesthetic, to allow the patient to phonate, thus allowing the surgeon to experiment with the best size and shape of the "button" for maximal remediation. This procedure can be done unilaterally or bilaterally. In all cases, after this surgery, the relaxed position of the vocal cords will allow the passage of less breath than before the medialization. The airway is rendered smaller and this effect must be a significant consideration of the surgeon.

References

  1. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:77 ISBN 1591032016
  2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:68 ISBN 140510368X

External links





Linked-in.jpg