title: A survey of the nature of trauma of post-traumatic benign paroxysmal positional vertigo.
abstract: OBJECTIVE
  A clinical description of post-traumatic benign paroxysmal positional vertigo (t-BPPV) in a large cohort is reported, sometimes caused by apparently insignificant minor head traumas. The aim of the study was to carefully assess the prevalence of t-BPPV and the main outcomes belonging to specific traumatic events.
  
  
  METHODS
  Retrospective analysis of medical records of t-BPPV cases among patients suffering from BPPV.
  
  
  METHODS
  Among 3060 patients with a clinical diagnosis of BPPV, we reviewed 716 clinical cases in which a clear association to a traumatic event was present.
  
  
  RESULTS
  A traumatic event was identified in 23.4% of total enrolled BPPV patients. Some minor head traumas could be more prone to determine BPPV in females. We confirmed that t-BPPV appeared significantly more difficult to treat than idiopathic form. Posterior canal t-BPPV cases required more treatment sessions before obtaining therapeutic success, while horizontal ones recovered at most after two repositioning maneuvers.
  
  
  CONCLUSIONS
  Post-traumatic BPPV is considered one of the most common known etiologies. An accurate understanding of trauma mechanism, gender prevalence, and therapeutic success rates of each event, could be useful in adequately treating and planning follow-up examinations.
authors.affiliation: * Department of Otolaryngology, University of Rome "Tor Vergata" , Rome , Italy.
authors.forename: Valerio
authors.initials: V
authors.lastname: Pisani
authors.forename: Sara
authors.initials: S
authors.lastname: Mazzone
authors.forename: Roberta
authors.initials: R
authors.lastname: Di Mauro
authors.forename: Pier Giorgio
authors.initials: PG
authors.lastname: Giacomini
authors.forename: Stefano
authors.initials: S
authors.lastname: Di Girolamo
mesh_terms: D000328:Adult; D000368:Aged; D065635:Benign Paroxysmal Positional Vertigo / Q000209:etiology* / Q000628:therapy; D006259:Craniocerebral Trauma / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012665:Semicircular Canals / Q000293:injuries; D012737:Sex Factors
keywords: BPPV; Post-traumatic; outcome; semicircular canal; vertigo