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The DizzyFix: initial results of a new dynamic visual device for the home treatment of benign paroxysmal positional
Matthew A Bromwich1, Lorne S Parnes
1Department of Otolaryngology, London Health Sciences Centre, University Hospital, London, Ontario.
Objective:
To develop and test a completely new dynamic visual device for the home treatment of benign paroxysmal positional vertigo (BPPV).
Design:
Randomized, controlled, prospective trial.
Setting:
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.
Main Outcome Measures:
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.
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