November 25, 2010

Distributed Botox Injection for Spasmodic Dysphonia (Rather than Single Injection)

For many patients with spasmodic dysphonia, botox injections to the vocal cords are a regular right of passage every few months towards a clearer voice. Spasmodic dysphonia characterized by spastic or breathy voice breaks while talking causes much problems socially as well as misunderstandings.

For many physicians who perform botox injections for spasmodic dysphonia, a single injection is performed to either one or both vocal cords.

However a few and perhaps growing number of physicians are now using a more sophisticated method of injection where not only one, but multiple "mini"- injections are performed to the vocal cord during an injection.

Why would multiple injections be performed when one will do?

For that, I would like to take the reader to the world of cosmetic botox injections for facial wrinkles.

For the millions more sufferers of facial wrinkles, patients know that from the point of injection, there is a limited region of affect... typically no more than a dime to nickle area in size depending on the volume used. SO... in order to get rid of forehead wrinkles, 5 or more injections are required as shown here by the "x" marks.

The point is... in order for a great outcome in forehead wrinkles... multiple injections are performed. Not one single injection.

The same holds true for the vocal cord muscles. Rather than a single large injection to one spot in the vocal cord muscle, there is a growing belief that multiple "mini"-injections should be performed throughout the vocal cord muscle in order to produce a better outcome... a distributed injection. No specific research to prove this, but rather anecdotal.

Here is a video of botox being injected in a patient with spasmodic dysphonia.

Fauquier blog
Fauquier ENT

Dr. Christopher Chang is a private practice otolaryngology, head & neck surgeon specializing in the treatment of problems related to the ear, nose, and throat. Located in Warrenton, VA about 45 minutes west of Washington DC, he also provides inhalant allergy testing/treatment, hearing tests, and dispenses hearing aids.

1 comment:

Jerry Fisher said...

i love your blog and your research about botox injection thanks alot for the great blog.

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