title: [The features of high and low-frequency function of horizontal, semicircular canal in Meniere's disease].
abstract: OBJECTIVE
  To analyze the feature of horizontal semicircular canal function at high and low-frequencies in Meniere's disease.
  
  
  METHODS
  Thirty patients suffering from unilateral Meniere's disease were included in the research from 2013 June to 2014 June. Caloric test and video head impulse test were performed to evaluate the high low-frequency function of horizontal semicircular canal.
  
  
  RESULTS
  these patients were devided by the severity of unilateral weakness in caloric test. The gain value in video head impulse test, which reflects the high-frequency function of semicircular canal, were not different between the normal and mild abnormal group (P > 0.05), but were obviously different between the normal and mild-severe abnormal group, slight abnormal and mild-severe abnormal group (P < 0.05). Gain asymmetry, which reflects the high-frequency function of both side, has no difference between three groups (P > 0.05).
  
  
  CONCLUSIONS
  A part of Meniere's disease may have normal high, low-frequency function of horizontal semicircular canal. As patient suffering slight injury of low-frequency function, the high-frequency function keeps normal. As the injury of low-frequency function become mildly to severely, the damage of high-frequency function appears, but the symmetry still keeps balance.
authors.forename: Ying
authors.initials: Y
authors.lastname: Chen
authors.forename: Zhongxin
authors.initials: Z
authors.lastname: Zhao
authors.forename: Jianhua
authors.initials: J
authors.lastname: Zhuang
authors.forename: Xuewei
authors.initials: X
authors.lastname: Xie
authors.forename: Zhe
authors.initials: Z
authors.lastname: Jin
authors.forename: Fei
authors.initials: F
authors.lastname: Li
mesh_terms: D002150:Caloric Tests; D064087:Head Impulse Test; D006801:Humans; D008575:Meniere Disease / Q000503:physiopathology*; D012665:Semicircular Canals / Q000503:physiopathology*