Peripheral vestibular loss detected in pediatric patients using a smartphone-based test of the subjective visual vertical

摘要: Abstract Introduction Detection of peripheral vestibular loss (PVL) in children with dizziness is an important and challenging task. The static subjective visual vertical (SVV) test can effectively detect PVL, but requires specialized equipment. Objective goal this study was to determine the efficacy a smartphone-based SVV at detecting PVL pediatric patients. Methods Thirty-nine patients between 7 18 years old (mean = 14.0 ± 2.70) underwent conventional (conv-SVV) (ip-SVV) testing. Subjects included 6 (based on clinical history other tests), benign paroxysmal positioning vertigo (BPPV), 11 central causes (CV), 8 non-vestibular (NVD), controls. Results Mean ip-SVV score group (2.77 ± 1.45) significantly higher than each groups (BPPV = 0.89 ± 0.55; CV = 1.08 ± 0.68; NVD = 1.45 ± 1.19; Control = 1.08 ± 0.73; one-way analysis variance, p  = 0.008), remained significant after adjusting for age gender by multiple linear regression analysis. Receiver operating characteristic predicted optimal cut-off >2.13° sensitivity 66.7%, specificity 97.0%, positive predictive value (PPV) 80%, negative 94.1% PVL. Sensitivity PPV improved 75% 100%, respectively, when subjects tested >1 month symptom onset ( n  = 24) were excluded. Conclusion Smartphone-based testing simple useful office-based method dizziness.