Department of Otolaryngology-Head and Neck Surgery and Maxillofacial Surgery, Tel-Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Otol Neurotol. 2021 Mar 1;42(3):455-460. doi: 10.1097/MAO.0000000000002944.
To measure the subjective visual vertical (SVV) in patients suffering from peripheral vestibular disorders versus controls, using a smartphone-based test designed to simulate the bucket test, in order to validate it as an available tool for the clinician.
Prospective cohort study.
Academic tertiary medical center.
Forty-five adult patients were recruited to the study, 25 had vestibular disorders, and 20 did not (controls).
All patients underwent conventional bucket-SVV (b-SVV) and smartphone-based SVV (s-SVV) testing.
Correlation and agreement of b-SVV and s-SVV scores in patients with peripheral vestibular disorders compared to controls.
SVV score in the vestibular disorders group was significantly higher compared to controls in both testing methods (p < 0.001 for b-SVV and p = 0.01 for s-SVV, effect size d = 1.7 for both testing methods). Intragroup correlation was excellent within the study group. Spearman's rank correlation coefficient between b-SVV and s-SVV was 0.902 (p = 0.01). Agreement measurements suggested a greater sensitivity for the b-SVV test, showing a mean difference of 1.088 degree (SD ± 1.77); directionality, however, was preserved.
The smartphone-based test is a valid, simple, and efficient in-office screening tool for assisting in the diagnosis of vestibular disorders.
使用基于智能手机的测试来模拟桶试验，以测量患有周围性前庭障碍的患者的主观垂直视觉（SVV），并与对照组进行比较，旨在验证其作为临床医生可用工具的有效性。
前瞻性队列研究。
学术三级医疗中心。
招募了 45 名成年患者，其中 25 名患有前庭障碍，20 名没有（对照组）。
所有患者均接受常规桶式 SVV（b-SVV）和基于智能手机的 SVV（s-SVV）测试。
与对照组相比，患有周围性前庭障碍的患者 b-SVV 和 s-SVV 评分的相关性和一致性。
在两种测试方法中，前庭障碍组的 SVV 评分均明显高于对照组（b-SVV 测试 p<0.001，s-SVV 测试 p=0.01，两种测试方法的效应量 d=1.7）。研究组内的组内相关性非常好。b-SVV 和 s-SVV 之间的斯皮尔曼等级相关系数为 0.902（p=0.01）。一致性测量表明 b-SVV 测试的灵敏度更高，平均差异为 1.088 度（SD±1.77）；然而，方向保持不变。
基于智能手机的测试是一种有效、简单、高效的门诊筛查工具，可辅助诊断前庭障碍。
