Posturographic profile of patients with persistent postural-perceptual dizziness on the sensory organization test

Eliane Sohsten, Roseli S M Bittar, Jeffrey P Staab

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Persistent postural-perceptual dizziness (PPPD) was defined by expert consensus for the forthcoming International Classification of Diseases, 11th edition. Its diagnostic criteria were derived from phobic postural vertigo and chronic subjective dizziness. Two key symptoms are postural unsteadiness and visually induced dizziness. We observed that patients with PPPD tended to perform poorly on multiple conditions of the EquiTest(r) Sensory Organization Test (SOT) and sought to investigate this phenomenon systematically. METHODS: We examined cross-sectional, pair-wise group differences in mean scores from SOT conditions 1-6 and composite scores among 20 patients with PPPD, 15 patients recovered from acute vestibular syndromes, and 15 normal individuals (all female, 43 ± 9 years old). We also compared proportions of patients in each group with abnormal sensory analyses, and poor performance across multiple conditions. RESULTS: Patients with PPPD had significantly lower mean scores than normal individuals on conditions 2-6 and the composite, and lower than recovered patients on conditions 2-3. Recovered patients had significantly lower mean scores than normal individuals on conditions 4-6 and the composite. Patients with PPPD had the greatest likelihood of abnormal sensory analyses. CONCLUSIONS: Patients with PPPD had difficulties with postural control across multiple sensory challenges, consistent with postulated neurophysiologic mechanisms of this condition.

Original languageEnglish (US)
Pages (from-to)319-326
Number of pages8
JournalJournal of Vestibular Research: Equilibrium and Orientation
Volume26
Issue number3
DOIs
StatePublished - Jul 2 2016

Keywords

  • anxiety
  • persistent postural-perceptual dizziness
  • Posturography
  • Sensory Organization Test
  • vestibular function tests

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Clinical Neurology
  • Sensory Systems
  • Neuroscience(all)

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