title: Normal and vestibular patterns in dynamic posturography in patients with Meniere's disease.
abstract: BACKGROUND
  The Sensory Organization Test of dynamic posturography allows a reliable assessment of the ability of any given patient to maintain a correct stability when conditions in the visual surrounding and/or support surface are deliberately modified. The results of this test can be analyzed according to the norms of the manufacturer of the device or through the application of specific formulae such as those by Cevette.
  
  
  OBJECTIVE
  To evaluate if the Cevette formulae distinguish correctly between the normal and vestibular patterns, as well as observing the differences between these two groups of patients (normal and vestibular), obtained either through standardized calculation or by the Cevette formulae. The work has been restricted to patients diagnosed with unilateral Menière's disease who presented an active form of the disease and who had not suffered a recent crisis.
  
  
  METHODS
  63 patients were studied who fulfilled the inclusion criteria for this study. A clinical and instrumental audio-vestibular study was carried out. The results of the sensory organization test were analyzed according to the pattern offered by the device and through the application of the Cevette formulae.
  
  
  RESULTS
  In 63 patients the pattern obtained was normal or vestibular. In 41 the pattern obtained through one system of analysis or the other coincided but in 22 they did not. The analysis of patients using the Cevette formulae offers a higher capacity for clinical discrimination but is not sensitive to the bias introduced by age; however, combined with the classification offered by the device, it manages to differentiate two populations (normal and vestibular) with a very good audio-vestibular correlation.
  
  
  CONCLUSIONS
  The combined assessment of the results of the sensory organization test using both the equipment analysis and the Cevette formulae provides much better and real information of clinical differences amongst patients with Menière's disease when the result is normal or of vestibular deficiency.
authors.affiliation: Departamento de Otorrinolaringología, Hospital Universitari de Tarragona Joan XXIII, Tarragona, España.
authors.forename: Esther
authors.initials: E
authors.lastname: Doménech-Vadillo
authors.forename: Lourdes
authors.initials: L
authors.lastname: Montes-Jovellar
authors.forename: Jorge
authors.initials: J
authors.lastname: Rey-Martínez
authors.forename: Nicolás
authors.initials: N
authors.lastname: Pérez-Fernández
mesh_terms: D000328:Adult; D000465:Algorithms; D002150:Caloric Tests; D016287:Computer Peripherals; D005260:Female; D005403:Fixation, Ocular; D019416:Head Movements / Q000502:physiology; D006801:Humans; D008297:Male; D008575:Meniere Disease / Q000503:physiopathology*; D008875:Middle Aged; D009460:Neurologic Examination / Q000295:instrumentation* / Q000379:methods; D009760:Nystagmus, Physiologic / Q000502:physiology; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D011434:Proprioception / Q000502:physiology*; D012021:Reflex, Abnormal / Q000502:physiology; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology*; D012189:Retrospective Studies; D012678:Sensation Disorders / Q000503:physiopathology*; D014717:Vertigo / Q000503:physiopathology