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  • Title: [Prevalence of aphysiologic performance on dynamic posturography in work-related patients].
    Author: Larrosa F, Durà MJ, Cordón A, Hernández A, García-Ibáñez L.
    Journal: Acta Otorrinolaringol Esp; 2012; 63(3):187-93. PubMed ID: 22464137.
    Abstract:
    INTRODUCTION AND OBJECTIVES: Medical-legal implications of dizziness and imbalance in work-related patients are important. In these cases, computerized dynamic posturography (CDP) adds information to standard vestibular tests and aphysiologic patterns have been described. The objective is to assess the prevalence of aphysiologic performance on CDP in work-related patients complaining of dizziness/imbalance. MATERIAL AND METHODS: Retrospective review of patients referred by the workers' compensation board for assessment of dizziness, imbalance or both. Standard vestibular assessment including CDP was carried out in all patients. The sensory organization test (SOT) summaries were scored as normal, aphysiologic or vestibular using the scoring method published by Cevette et al. in 1995. RESULTS: Aphysiologic performance in SOT, evaluated with the Cevette formula, was found in 31 out of 100 cases. Low composite score results and aphysiologic SOT results had a statistically-significant association (P=.01). Videonystagmography (VNG) was altered in 14 out of 31 cases with aphysiologic SOT. CONCLUSION: The 31% prevalence of aphysiologic results on CDP among work-related patients complaining of dizziness/imbalance is relatively high in comparison with the 25% published by Longridge and Mallinson in 2005. However, aphysiologic performance should not necessarily be related to malingering or exaggeration and altered vestibular tests are found in some of these cases.
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