Implantable Electric Stimulator

An implantable electric stimulator may become a future treatment option for SD Michael Pitman, MD Dr. Michael Pitman, Chief of the Division of Laryngology at the Columbia University Medical Center,…

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Type II Thyroplasty

Type II Thyroplasty: A Surgical Treatment for Adductor Spasmodic Dysphonia Type II Thyroplasty is a surgical procedure that separates the vocal folds and it is used to treat the adductor…

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Vocal Cord Paralysis

About Vocal Cord Paralysis Vocal Cord Paralysis (VCP) is impaired movement of the vocal cords caused by an injury to the vagus or recurrent laryngeal nerves that are critical to…

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Muscle Tension Dysphonia

Muscle Tension Dysphonia is different from spasmodic dysphonia but a person can have both conditions Muscle tension dysphonia (MTD) is a condition of extra vocal work and strain. Most of…

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Published Research

Published research on spasmodic dysphonia and related voice conditions has accelerated over the last few years This page includes links to articles, literature, research papers and studies published in various…

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Participate in Research

Opportunities to participate in research to find answers for voice disorders Researchers need you! By participating in clinical research trials you are helping us to learn more about the cause…

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Connect with Dysphonia International

If you have questions. If you need more information. If you want to get involved. Contact us! The Dysphonia International, formerly the National Spasmodic Dysphonia Association, is dedicated to improving…

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Diagnosing Spasmodic Dysphonia

Diagnosing Spasmodic Dysphonia Spasmodic dysphonia (SD) can be difficult to diagnose because the anatomy of the larynx remains normal. SD has no objective pathology that is evident through x-rays or…

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