spastic dysphonia

spasmodic dysphonia

a spasmodic contradiction of the intrinsic muscles of the larynx excited by attempted phonation, producing either adductor or abductor subtypes caused by a central nervous system disorder. A localized form of movement disorder.
Farlex Partner Medical Dictionary © Farlex 2012

spas·mod·ic dys·pho·ni·a

(spaz-mod'ik dis-fō'nē-ă)
A spasmodic contraction of the intrinsic muscles of the larynx excited by attempted phonation, producing either adductor or abductor subtypes caused by a central nervous system disorder. A localized form of movement disorder.
Synonym(s): spastic dysphonia.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Adductor spastic dysphonia: three years after laryngeal nerve section.
Study of spastic dysphonia using videofiberoptic laryngoscopy.
Botulinum toxin (BOTOX) for the treatment of "spastic dysphonia" as part of a trial of toxin injections for the treatment of other cranial dystonias.
Also called spastic dysphonia or laryngeal dystonia, it causes strained and difficult speaking or breathy and effortful speech.