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Related Experiment Videos

[Sleep apnea syndromes in multiple system atrophy].

J T Maurer1, C Juncker, A Baker-Schreyer

  • 1Universitätsklinik für Hals-, Nasen- und Ohrenheilkunde Mannheim.

HNO
|April 10, 1999
PubMed
Summary

Multiple-system atrophy (MSA) can cause vocal cord palsies leading to snoring. Sleep videoendoscopy is crucial for diagnosing the exact cause and location of airway obstruction in these patients.

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Area of Science:

  • Neurology
  • Sleep Medicine
  • Otolaryngology

Background:

  • Multiple-system atrophy (MSA) presents with autonomic failure and neurological signs.
  • Vocal fold abnormalities, including abductor palsies, are common in MSA patients.
  • Snoring is a frequent symptom requiring further investigation into its cause.

Observation:

  • A 56-year-old obese male with MSA presented with snoring and daytime sleepiness.
  • Awake endoscopy revealed an incomplete abductor vocal fold palsy.
  • Sleep polysomnography indicated heavy snoring and frequent arousals, with low sleep efficiency.

Findings:

  • Sleep videoendoscopy demonstrated that fluttering vocal cords during inspiration were the source of snoring.
  • The pharynx remained open during sleep, ruling out pharyngeal obstruction.
  • Glottic snoring, specifically from vocal cord movement, is a rare but recognized manifestation in MSA.

Implications:

  • Sleep videoendoscopy is essential for accurately identifying the site of airway obstruction in MSA patients who snore.
  • Distinguishing glottic from pharyngeal snoring is critical for appropriate management.
  • Understanding the specific cause of snoring in MSA can guide targeted therapeutic interventions.

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