Feil & Oberfeld Research Centre, Jewish Rehabilitation Hospital, Laval, QC, Canada. edannenbaum
J Vestib Res. 2011;21(3):153-9. doi: 10.3233/VES-2011-0412.
A common symptom for people with vestibulopathy is dizziness induced by dynamic visual input, known as visual vertigo (VV). The goal of this study is to present a novel method to assess VV, using a nine-item analog scale. The subjects rated the intensity of their dizziness on each item of the Visual Vertigo Analogue Scale (VVAS), which represented a daily situation typically inducing VV. The questionnaire was completed by participants with vestibulopathy (n=102) and by subjects receiving out-patient orthopaedic physiotherapy (n=102). The dizziness handicap inventory (DHI) was also completed by the vestibulopathic group. The Cronbach's Alpha index indicated the VVAS is internally consistent and reliable (Cronbach's Alpha=0.94). The study also found that the VVAS severity scores from vestibular and a non-vestibular population were significantly different (Wilcoxon-Mann Whitney test p < 0.0001). Spearman correlation analysis conducted between DHI and VVAS scores for the clients with vestibulopathy showed positive moderate correlations between the VVAS score and the total DHI score (r=0.67, p< 0.0001). This study showed that the VVAS scale may be useful in providing a quantitative evaluation scale of visual vertigo.
前庭病患者的常见症状是由动态视觉输入引起的头晕，称为视觉性眩晕（VV）。本研究的目的是提出一种使用九项模拟量表评估 VV 的新方法。受试者根据视觉性眩晕模拟量表（VVAS）的每一项评估其头晕的强度，这代表了通常会引起 VV 的日常情况。问卷由前庭病患者（n=102）和接受门诊骨科物理治疗的受试者（n=102）完成。前庭病患者还完成了头晕障碍量表（DHI）。Cronbach 的 Alpha 指数表明 VVAS 具有内部一致性和可靠性（Cronbach 的 Alpha=0.94）。研究还发现，前庭和非前庭人群的 VVAS 严重程度评分存在显著差异（Wilcoxon-Mann Whitney 检验 p < 0.0001）。对前庭病患者进行的 DHI 和 VVAS 评分之间的 Spearman 相关分析显示，VVAS 评分与 DHI 总分之间存在正中等相关性（r=0.67，p< 0.0001）。本研究表明，VVAS 量表可用于提供视觉性眩晕的定量评估量表。
