title: Visual analog scale to assess vertigo and dizziness after repositioning maneuvers for benign paroxysmal positional vertigo.
abstract: BACKGROUND
  The aim of this study was to evaluate the value of Visual Analog Scale (VAS) in evaluating vertigo and dizziness in patients with benign paroxysmal positional vertigo (BPPV).
  
  
  METHODS
  226 adult patients suffering from a BPPV and undergoing repositioning maneuvers were included in this prospective study. Vertigo (V) and dizziness (D) were separately evaluated from day 0 to 5 by VAS. V and D scores decreased both exponentially but with different constants. D scores were not correlated to V suggesting the independency of the ratings. D was related to the dizziness intensity level expressed at interrogation. Both D and V scores were related to patients' global satisfaction.
  
  
  CONCLUSIONS
  VAS allows differentiating vertigo from dizziness and provides coherent results with other clinical indicators.
authors.affiliation: Centre d'Explorations Fonctionnelles Oto-Neurologiques, Paris, France.
authors.forename: Michet
authors.initials: M
authors.lastname: Toupet
authors.forename: Evelyne
authors.initials: E
authors.lastname: Ferrary
authors.forename: Alexis Bozorg
authors.initials: AB
authors.lastname: Grayeli
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D065635:Benign Paroxysmal Positional Vertigo; D004244:Dizziness / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination / Q000379:methods*; D056888:Patient Positioning; D017060:Patient Satisfaction; D011446:Prospective Studies; D014717:Vertigo / Q000175:diagnosis* / Q000628:therapy