Spasmodic dysphonia

Tanya K. Meyer, Scott M. Rickert, Lesley F. Childs, Andrew Blitzer

Research output: Chapter in Book/Report/Conference proceedingChapter


INTRODUCTION Spasmodic dysphonia (SD) is considered a focal laryngeal dystonia in which a patient experiences excessive laryngeal muscular contractions during speech. The most common form, adductor SD, produces a strained and strangled speaking pattern. Abductor SD is less common, and results in a breathy or whispering speaking pattern. Although the task specificity for focal laryngeal dystonia has been observed mostly for speech, there is a low incidence of adductor breathing dystonia that may produce inspiratory stridor, and singing dystonia. The etiology of laryngeal dystonia falls into the same categories as forms affecting other areas of the body. Druginduced glottic dystonic reactions have been described causing acute upper airway obstruction necessitating intubation (1-3).

Original languageEnglish (US)
Title of host publicationHandbook of Dystonia
Subtitle of host publicationSecond Edition
PublisherCRC Press
Number of pages11
ISBN (Electronic)9781841848525
ISBN (Print)9781584889748
StatePublished - Jan 1 2012

ASJC Scopus subject areas

  • Medicine(all)


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