title: The effect of vestibular rehabilitation on sleep disturbance in patients with chronic dizziness.
abstract: CONCLUSIONS
  Improvement in sleep, emotional distress, and health-related quality-of-life (QoL) accompanied the improvement in dizziness symptoms after vestibular rehabilitation. Persistent sleep disturbance could prevent improvements in self-perceived handicap due to chronic dizziness and anxiety.
  
  
  OBJECTIVE
  The present study investigated prospectively the effects of intervention for dizziness (vestibular rehabilitation) on sleep disturbance, and the relationship between improvements in dizziness symptoms and improvements in sleep disturbance after the intervention.
  
  
  METHODS
  The participants of this study were 127 chronic dizziness inpatients with comorbid sleep disturbance (Pittsburgh sleep quality index [PSQI-J] global score ≥6). Participants completed the Dizziness Handicap Inventory (DHI, three sub-scales: Physical, Emotional, and Functional), PSQI-J, Hospital Anxiety and Depression Scale (HADS), and SF-8 (health-related QoL), and underwent gravity center fluctuation measurement before (time 1) and 1 month after (time 2) an in-hospital rehabilitation program.
  
  
  RESULTS
  All measured variables were significantly improved at time 2, compared to time 1. At time 2, 80.31% of patients still reported sleep disturbance. Analysis of covariance showed that chronic dizziness patients with sleep disturbance at time 2 had significantly higher DHI total, DHI-physical, and HADS-anxiety scores at time 2 than patients without sleep disturbance at time 2, after adjusting for these scores at time 1.
authors.affiliation: a Department of Epidemiology and Public Health, Graduate School of Medicine , Yokohama City University , Japan.
authors.forename: Nagisa
authors.initials: N
authors.lastname: Sugaya
authors.affiliation: b Department of Otolaryngology , National Hospital Organization, Tokyo Medical Center , Japan.
authors.forename: Miki
authors.initials: M
authors.lastname: Arai
authors.affiliation: b Department of Otolaryngology , National Hospital Organization, Tokyo Medical Center , Japan.
authors.forename: Fumiyuki
authors.initials: F
authors.lastname: Goto
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002908:Chronic Disease / Q000534:rehabilitation; D004244:Dizziness / Q000150:complications / Q000534:rehabilitation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012893:Sleep Wake Disorders; D015837:Vestibular Diseases / Q000150:complications / Q000534:rehabilitation*
keywords: Chronic dizziness; Dizziness Handicap Inventory; anxiety; depression; health-related quality-of-life; sleep disturbance; vestibular rehabilitation