Larynx

Spastic Dysphonia

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Spastic Dysphonia, Spasmodic Dysphonia, Laryngeal Dystonia

  • See also
  1. Hoarseness
  • Pathophysiology
  1. Uncontrolled intrinsic laryngeal Muscle Contraction
  2. Neurogenic causes in most cases
  3. Psychogenic in some cases surrounding life stressors
  • Symptoms
  1. Jerky, poorly coordinated voice
    1. Variations in pitch and intensity
    2. Halting, strained or strangled sound
  2. Normal during singing, crying and laughing
  • Signs
  1. Hyperadduction of the true and false Vocal Cords
  • Management
  1. Psychogenic Dysphonia
    1. Speech pathology
  2. Neurogenic Dysphonia
    1. Local injection Botulinum Toxin into vocal folds
  • References
  1. Feierabend (2009) Am Fam Physician 80(4): 363-70 [PubMed]
  2. House (2017) Am Fam Physician 96(11): 720-8 [PubMed]