title: The DizzyFix: initial results of a new dynamic visual device for the home treatment of benign paroxysmal positional vertigo.
abstract: OBJECTIVE
  To develop and test a completely new dynamic visual device for the home treatment of benign paroxysmal positional vertigo (BPPV).
  
  
  METHODS
  Randomized, controlled, prospective trial.
  
  
  METHODS
  Tertiary care hospital.
  
  
  METHODS
  We designed and manufactured a new device (the DizzyFix) to assist in the performance of the particle repositioning manoeuvre (PRM). Fifty healthy volunteers were taught the PRM, half using the new device. At 1 week, we compared the PRM performance between the device and nondevice user groups.
  
  
  METHODS
  Performance of the PRM as graded on an 11-point scale.
  
  
  RESULTS
  DizzyFix users in phase I scored significantly higher on their PRM performance compared with controls (p = .0001).
  
  
  CONCLUSIONS
  The use of this new device enables volunteers to conduct a correct PRM on their own. This is a significant improvement from written instructions or in-office training.
authors.affiliation: Department of Otolaryngology, London Health Sciences Centre, University Hospital, London, Ontario.
authors.forename: Matthew A
authors.initials: MA
authors.lastname: Bromwich
authors.forename: Lorne S
authors.initials: LS
authors.lastname: Parnes
mesh_terms: D000328:Adult; D018592:Cross-Over Studies; D004311:Double-Blind Method; D004867:Equipment Design; D005260:Female; D018575:Home Care Services, Hospital-Based; D006801:Humans; D008297:Male; D008875:Middle Aged; D010045:Outpatients; D010775:Photic Stimulation / Q000295:instrumentation*; D004856:Postural Balance / Q000502:physiology; D011446:Prospective Studies; D012665:Semicircular Canals / Q000503:physiopathology; D016896:Treatment Outcome; D014717:Vertigo / Q000503:physiopathology / Q000628:therapy*; D055815:Young Adult