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A Pilot Study to Assess Visual Vertigo in People with Persistent Postural-Perceptual Dizziness with a New
Tsun-Ai Jasper Chen1, Marie-Li Dion Parenteau1, Kirby Marchand1
1School of Physical and Occupational Therapy, McGill University, 3654 Prom Sir-William-Osler, Montréal, QC H3G 1Y5, Canada.
Journal of Clinical Medicine
|March 11, 2023
Summary
A new computerized tool, the computer-Visual Vertigo Analogue Scale (c-VVAS), effectively distinguishes visual vertigo in persistent postural-perceptual dizziness (PPPD) patients from healthy individuals. This digital scale demonstrated high participant acceptance and shows promise for clinical use.
Area of Science:
- Neurology
- Ophthalmology
- Vestibular Science
Background:
- Visual vertigo (VV) is a frequent symptom in persistent postural-perceptual dizziness (PPPD).
- Existing subjective scales for VV intensity assessment are limited by recall bias.
- A computerized video-based tool, the computer-Visual Vertigo Analogue Scale (c-VVAS), was developed to address these limitations.
Purpose of the Study:
- To develop and evaluate a computerized video-based tool for assessing visual vertigo in individuals with PPPD.
- To compare the efficacy of the c-VVAS against traditional paper-based scales.
- To assess participant acceptance and usability of the c-VVAS.
Main Methods:
- A pilot study involving 8 PPPD participants and 8 healthy controls.
- Participants completed both the traditional paper-Visual Vertigo Analogue Scale (p-VVAS) and the c-VVAS.
- A questionnaire assessed participant experiences with the c-VVAS.
Main Results:
- The c-VVAS scores significantly differed between the PPPD group and the control group (p < 0.05).
- A high acceptance rate for the c-VVAS was observed (mean = 91.74%).
- Correlation analysis between total c-VVAS scores showed no significant results (r = 0.668, p = 0.07).
Conclusions:
- The c-VVAS is capable of differentiating individuals with PPPD from healthy controls.
- The c-VVAS was well-received by all participants in the study.
- This computerized tool shows potential for improved assessment of visual vertigo in PPPD.
