Spasmodic Dysphonia: A Peculiar Voice Disorder

Spasmodic dysphonia (SD) is a rare neurological disorder caused by laryngeal dystonia, and it interferes with the smooth functioning of the voice. Tiny spasms of the vocal folds may cause the voice to catch or cut out, strain or squeeze away, and sometimes to drop momentarily to a whisper. Those watching this tape will hear examples of the many types of SD.

For more information, see our spasmodic dysphonia entry at our new learning center, Bastian Medical Media for Laryngology.