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Sleep Performance and Chronotype Behavior in Unilateral Vestibular Hypofunction.

Alessandro Micarelli1,2, Andrea Viziano3, Rossella Pistillo2

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Summary

Patients with chronic unilateral vestibular hypofunction (UVH) exhibit altered sleep patterns, including reduced sleep time and quality, even without self-reported sleep issues. Vestibular function correlates with sleep quality in these patients.

Keywords:
Sleep disturbancesactigraphyposturographysleep qualityvestibular hypofunction

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Area of Science:

  • Otolaryngology
  • Sleep Medicine
  • Neurology

Background:

  • Chronic unilateral vestibular hypofunction (UVH) affects balance and spatial orientation.
  • Sleep disturbances are common in neurological conditions but understudied in UVH.
  • Objective sleep analysis in UVH patients without self-reported sleep issues is lacking.

Purpose of the Study:

  • To investigate sleep behavior in chronic UVH patients compared to healthy controls.
  • To explore the relationship between otoneurological parameters and sleep in UVH patients.

Main Methods:

  • Actigraphy and self-report/performance measures (SRM/PM) for sleep analysis.
  • Otoneurological examinations in 51 UVH patients and 60 healthy controls (CG).
  • Statistical analysis including ANOVA and correlation analysis.

Main Results:

  • UVH patients showed reduced total sleep time and increased sleep onset latency compared to CG.
  • UVH patients reported poorer sleep quality and evening-type chronotype.
  • Vestibular function correlated with subjective sleep quality; disease duration correlated with reduced sleep time.

Conclusions:

  • Chronic UVH is associated with objective sleep alterations not always perceived by patients.
  • The underlying mechanisms linking UVH and sleep disruption require further investigation.
  • Multiparametric sleep analysis is crucial for understanding sleep in vestibular disorders.