Swallowing, speech, and brainstem auditory-evoked potentials in spasmodic torticollis

Dysphagia. 1993;8(1):29-34. doi: 10.1007/BF01351475.

Abstract

To explore the controversial "brainstem theory" of spasmodic torticollis, eight consecutively referred patients were examined. Three independent examinations were conducted on the same day: a videofluoroscopic barium swallowing examination, an instrumental speech examination, and a brainstem auditory-evoked potential (BAEP) analysis. Swallowing was normal in two patients; speech physiology, in five; and BAEPs, in all. Normal BAEPs refute the brainstem theory, while abnormalities of speech and swallowing temper this conclusion. Several alternative explanations are proposed.

MeSH terms

  • Adult
  • Cineradiography
  • Deglutition / physiology*
  • Deglutition Disorders / etiology
  • Deglutition Disorders / physiopathology
  • Evoked Potentials, Auditory, Brain Stem / physiology*
  • Female
  • Fluoroscopy
  • Hearing / physiology
  • Humans
  • Larynx / physiopathology
  • Male
  • Middle Aged
  • Palate, Soft / physiopathology
  • Pharynx / physiopathology
  • Phonation / physiology
  • Respiration / physiology
  • Spasm / physiopathology
  • Speech / physiology*
  • Torticollis / complications
  • Torticollis / physiopathology*
  • Vital Capacity / physiology