title: Presentation and outcome of post-traumatic benign paroxysmal positional vertigo.
abstract: CONCLUSIONS
  The clinical presentation and outcome of post-traumatic benign paroxysmal positional vertigo (t-BPPV) are different from those idiopathic BPPV (i-BPPV). It appears that t-BPPV is more difficult to treat than i-BPPV.
  
  
  OBJECTIVE
  To identify the clinical presentation and outcome of t-BPPV.
  
  
  METHODS
  We reviewed the medical records of 40 patients with BPPV after head injury during the period 2004-2011. The outcome was compared with the outcome of 46 patients with i-BPPV who were treated over the same period.
  
  
  RESULTS
  In all, 55% of patients with t-BPPV had involvement of two or more semicircular canals (SCCs) in comparison with 6.5% of patients with i-BPPV (p < 0.01). Also, 25% of patients with t-BPPV had involvement of bilateral SCCs in comparison with 2% of patients with i-BPPV (p < 0.01). We found that 35% of patients with t-BPPV were free of the symptoms and signs after a single physical repositioning maneuver, in comparison with 84% of patients with i-BPPV (p < 0.001). During a 1-year follow-up, 67% of patients with t-BPPV and 12% of patients with i-BPPV had a recurrent attack (p < 0.001).
authors.affiliation: Department of Otolaryngology, Henan Province People's Hospital, Zhengzhou University, Henan, China. lhjent@163.com
authors.forename: Hongjian
authors.initials: H
authors.lastname: Liu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D065635:Benign Paroxysmal Positional Vertigo; D006259:Craniocerebral Trauma / Q000150:complications* / Q000503:physiopathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009760:Nystagmus, Physiologic; D056888:Patient Positioning; D011187:Posture / Q000502:physiology*; D012189:Retrospective Studies; D012665:Semicircular Canals / Q000503:physiopathology*; D014717:Vertigo / Q000209:etiology* / Q000503:physiopathology; D055815:Young Adult