spasmodic 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.

Synonym(s): dysphonia spastica, spastic dysphonia

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spasmodic dysphonia

Laryngeal dystonia, spastic dysphonia Neurology A voice disorder characterized by spasmodic contraction of laryngeal muscles, which chokes off words as uttered, resulting in strained and strangled speech with breaks in rhythm; SD may be accompanied by other dystonias–eg,
blepharospasm, oromandibular dystonia, torticollis, writers' cramp Management Sectioning of recurrent laryngeal nerve may be complicated by late failure; botulinum toxin injection into laryngeal muscles may be preferred

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

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