Movement Disorders

Movement Disorders

These include disorders such as Parkinson's disease which can cause weakening of the voice and swallowing, voice tremor, and spasmodic dysphonia.

Spasmodic dysphonia is a movement disorder affecting the voice and characterized by involuntary spasms which disrupt phonation.  It may also be accompanied by tremor, hoarseness, strain, and pitch breaks.  It is considered a dystonia, or movement disorder specific to the vocal folds, similar to other dystonias such as tortocollis or blepharospasms (rapid eye-blinking movements).  The treatment for spasmodic dysphonia may involve the use of Botox injections into the muscles of the vocal folds.  Botox helps to weaken the spasms.

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