title: [Benign paroxysmal positioning vertigo related to inner ear disorders].
abstract: OBJECTIVE
  To investigate the incidence of benign paroxysmal positional vertigo(BPPV) and to further understand the possible mechanism of BPPV.
  
  
  METHODS
  To observe the incidence of BPPV among vestibular neuritis, sudden deafness, Meniere's disease and Bell's palsy at vertigo clinic from January at 2004 to November at 2006 and to compare the therapeutic results with that of the primary BPPV.
  
  
  RESULTS
  There are 4 types of inner ear disorders involved in the concomitant BPPV, ie, vestibular neuritis, sudden deafness, Meniere's disease and Bell's palsy and the incidence are 9.5% (5/53), 38.9% (35/90) and 0.3% (1/381) respectively; and there was 1 case of BPPV concomitant to Bell's palsy. Among the 42 concomitant BPPV, 5 cases were horizontal canal BPPV, 37 cases were posterior canal BPPV, and 1 cases had complicated anterior BPPV during repositioning maneuver. 39 cases of concomitant BPPV were canalithiasis and 3 cases were cupuliothiathitis, of which 75% (27/36) of concomitant BPPV emerged within 1/2 years after the onset of primary inner ear disorders. The therapeutic efficacy of the concomitant BPPV with canalith repositioning was similar to that of the primary type of BPPV.
  
  
  CONCLUSIONS
  Following some inner ear disorder, BPPV could emerge, such as sudden deafness, vestibular neuritis and Meniere's disease. The most common type of BPPV was canalithiasis of posterior canal, and the cupulolithiasis of horizontal canal was uncommon. The anterior canal therapeutic efficacy of the concomitant BPPV with canalith repositioning was similar to that of the primary type of BPPV. The therapeutic efficacy of the concomitant BPPV with canalith repositioning was similar to that of the primary type of BPPV.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, General Hospital of Chinese People's Liberation Army, Otolaryngology Institute of General Hospital of Chinese People's Liberation Army, Beijing 100853, China. zimingwu@163.com
authors.forename: Zi-Ming
authors.initials: ZM
authors.lastname: Wu
authors.forename: Su-Zhen
authors.initials: SZ
authors.lastname: Zhang
authors.forename: Xing-Jian
authors.initials: XJ
authors.lastname: Liu
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.forename: Fei
authors.initials: F
authors.lastname: Ji
authors.forename: Ai-Ting
authors.initials: AT
authors.lastname: Chen
authors.forename: Wei-Yan
authors.initials: WY
authors.lastname: Yang
authors.forename: Dong-Yi
authors.initials: DY
authors.lastname: Han
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D065635:Benign Paroxysmal Positional Vertigo; D004427:Ear Diseases / Q000150:complications* / Q000628:therapy; D007758:Ear, Inner / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014717:Vertigo / Q000209:etiology* / Q000628:therapy; D055815:Young Adult