title: Benign positional vertigo without detectable nystagmus.
abstract: OBJECTIVE
  To demonstrate that for treatment of benign positional vertigo it is not necessary to identify a positional nystagmus.
  
  
  METHODS
  Prospective trial of 43 patients with positional vertigo without clinical evidence of positional nystagmus who were treated with a modified canal-repositioning maneuver.
  
  
  METHODS
  Results were compared with the results obtained in the treatment of posterior semicircular cupolo-canalithiasis with typical positional nystagmus with the same repositioning maneuver.
  
  
  RESULTS
  Treatment of 43 patients with positional vertigo without positional nystagmus resulted in a 60.46% (26/43) complete recovery rate and a 6% (3/43) persistence of disorder rate compared with a 90% complete recovery rate obtained in 90 patients with typical benign positional paroxysmal vertigo (with positional nystagmus).
  
  
  CONCLUSIONS
  What is attempted by this work is to confirm that through clinical evaluation based on history and positioning tests alone, one can obtain acceptable results in treatment of supposed canalithiasis without having detected the pathognomonic nystagmus.
authors.affiliation: Ear, Nose and Throat Department, Hospital of Cattinara, University of Trieste, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Tirelli
authors.forename: E
authors.initials: E
authors.lastname: D'Orlando
authors.forename: V
authors.initials: V
authors.lastname: Giacomarra
authors.forename: M
authors.initials: M
authors.lastname: Russolo
mesh_terms: D003937:Diagnosis, Differential; D004584:Electronystagmography; D006801:Humans; D026741:Physical Therapy Modalities; D011187:Posture; D016896:Treatment Outcome; D014717:Vertigo / Q000175:diagnosis* / Q000209:etiology / Q000534:rehabilitation; D014724:Vestibular Function Tests