title: Mastoid oscillation in canalith repositioning for paroxysmal positional vertigo.
abstract: OBJECTIVE
  The canalith repositioning procedure (CRP) was developed to treat paroxysmal positional vertigo (PPV). Successful CRP results in cessation of PPV and positional nystagmus. Mastoid oscillation (MO) has been advocated to enhance the efficacy of CRP. The authors sought to objectively determine the effect of MO on CRP.
  
  
  METHODS
  Retrospective review.
  
  
  METHODS
  Ambulatory referral center.
  
  
  METHODS
  Patients with PPV seen from 1993 through 1999 (N = 168).
  
  
  METHODS
  Canalith repositioning procedure performed without MO (n = 104) and performed with MO (n = 64).
  
  
  METHODS
  Presence or absence of nystagmus on Dix-Hallpike testing 6 weeks after CRP.
  
  
  RESULTS
  Eighty-four percent of patients treated with MO had resolution, and 16% had persistent nystagmus. Seventy-three percent of patients without MO had resolution, and 27% had persistent nystagmus. Although suggesting a trend, the difference did not reach the level of significance (p = 0.151).
  
  
  CONCLUSIONS
  Mastoid oscillation does not significantly enhance the efficacy of the CRP.
authors: St. Louis University Department of Otolaryngology, Missouri 63110, USA.
authors: E W
authors: EW
authors: Sargent
authors: A E
authors: AE
authors: Bankaitis
authors: C S
authors: CS
authors: Hollenbeak
authors: J W
authors: JW
authors: Currens
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D008416:Mastoid / Q000503:physiopathology*; D010037:Otolithic Membrane / Q000503:physiopathology; D011187:Posture / Q000502:physiology; D012189:Retrospective Studies; D016896:Treatment Outcome; D014717:Vertigo / Q000503:physiopathology* / Q000628:therapy*