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[A probe into the relationship between spasmodic dysphonia and laryngeal paralysis].

S Yang1, P He, S Lu

  • 1Second Clinical College, Chinese Medical University, Shenyang 110003.

Zhonghua Er Bi Yan Hou Ke Za Zhi
|April 10, 2002
PubMed
Summary
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Spasmodic dysphonia may occur during the recovery or worsening phases of laryngeal paralysis. This study observed five cases, suggesting a link between these voice disorders.

Area of Science:

  • Otolaryngology
  • Neurology
  • Speech-Language Pathology

Context:

  • Laryngeal paralysis, characterized by impaired vocal cord function, affects voice production.
  • Spasmodic dysphonia is a voice disorder involving involuntary muscle spasms in the larynx.

Purpose:

  • To explore the potential relationship between laryngeal paralysis and spasmodic dysphonia.
  • To analyze clinical observations of patients with both conditions.

Summary:

  • Electromyography and videostroboscopy were used to assess 1300 cases of laryngeal paralysis (mild, moderate, severe) over 12 years.
  • Five cases of spasmodic dysphonia were identified within this cohort, with varying degrees of laryngeal paralysis.
  • Findings suggest spasmodic dysphonia may manifest during the fluctuating course of laryngeal paralysis.

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Impact:

  • Provides insight into the complex interplay between laryngeal paralysis and spasmodic dysphonia.
  • May inform diagnostic and therapeutic strategies for patients with these laryngeal conditions.