title: [Clinical analysis of labyrinthine fistula caused by choleseatoma otitis media].
abstract: OBJECTIVE
  To investigate the clinical features of labyrinthine fistula and obtain the diagnosis, treatment and prognosis of different types of fistula.
  
  
  METHODS
  A retrospective analysis of 42 cases (43 ears) with labyrinthine fistula in our hospital from January 2007 to November 2014 was conducted. Data of preoperative clinical manifestation, auditory function, CT image, operative findings, treatment and postoperative recovery were collected and statistically analysed.
  
  
  RESULTS
  Thirty-nine cases (40 ears) of the 42 cases (43 ears) which were diagnosed as labyrinthine fistula according to operative findings occurred in the lateral semicircular canal, 1 case occurred in the posterior semicircular canal, 1 case occurred in the superior semicircular canal, and 1 case occurred both in lateral and posterior semicircular canal. Before operation, 24 ears (55.8% ) experienced vertigo and 14 ears (32.6%) showed impaired bone conduction hearing threshold. According to Dornhoffer classification standard, 22 cases (23 ears) were diagnosed as type I fistula, 9 cases as type II fistula and 11 cases as type III fistula. There was no statistical difference among the 3 groups on type of hearing loss, vertigo, CT, facial nerve canal damage before operation and bone conduction hearing threshold, vertigo after operation.
  
  
  CONCLUSIONS
  An accurate diagnosis of labyrinthine fistula relies on the operative findings rather than preoperative clinical manifestation, auditory function or CT The surgical intervention should be individualized. There is no significant difference on postoperative recovery among different types of labyrinthine fistula.
authors.forename: Fangyuan
authors.initials: F
authors.lastname: Wang
authors.forename: Nan
authors.initials: N
authors.lastname: Wu
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Hou
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.forename: Weidong
authors.initials: W
authors.lastname: Shen
authors.forename: Weiju
authors.initials: W
authors.lastname: Han
authors.forename: Shiming
authors.initials: S
authors.lastname: Yang
mesh_terms: D001844:Bone Conduction; D018424:Cholesteatoma, Middle Ear / Q000150:complications*; D003638:Deafness; D020220:Facial Nerve Injuries; D005402:Fistula / Q000209:etiology*; D006801:Humans; D007759:Labyrinth Diseases / Q000209:etiology*; D010033:Otitis Media / Q000150:complications*; D011184:Postoperative Period; D011379:Prognosis; D012189:Retrospective Studies; D014717:Vertigo