title: [Multi-channel cochlear implants in patients with Mondini malformation].
abstract: OBJECTIVE
  To describe clinical experiences with multi-channel cochlear implantation in patients with Mondini malformation.
  
  
  METHODS
  Among 300 patients who received multi-channel cochlear implants from 1996 to 2002 in Beijing Tongren Hospital, 15 patients were diagnosed with Mondini malformation. A retrospective analysis was performed dealing with the surgical techniques, mapping and rehabilitations characteristics after surgery. 15 patients with normal cochlear structure are consider as control group.
  
  
  RESULTS
  Gusher is found more common than the normal cochlear implantation, most of them are serious. The electrodes are inserted in the "cochleostomy" in full length of 13 Patients, 2 pairs of electrodes remains outside of "cochleostomy" in 2 patients. No serious complications occurred after implantation. All patients have auditory sensations. The impedance of the electrodes, the T level, C level and the hearing threshold are similar with the normal cochlear implantation group. The results have no significant difference in compare with normal cochlear group(P > 0.05).
  
  
  CONCLUSIONS
  Multi-channel cochlear implantation could be performed safely in patients with Mondini malformation. The primary outcome for patients with Mondini malformation are similar to those with normal cochlear structure following the multi-channel cochlear implantation.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital University of Medical Science, Beijing 100730, China. entlyx@sina.com
authors.forename: Yong-xin
authors.initials: YX
authors.lastname: Li
authors.forename: De-min
authors.initials: DM
authors.lastname: Han
authors.forename: Xiao-tian
authors.initials: XT
authors.lastname: Zhao
authors.forename: Xue-qing
authors.initials: XQ
authors.lastname: Chen
authors.forename: Ying
authors.initials: Y
authors.lastname: Kong
authors.forename: Jun
authors.initials: J
authors.lastname: Zheng
authors.forename: Bo
authors.initials: B
authors.lastname: Liu
authors.forename: Sha
authors.initials: S
authors.lastname: Liu
authors.forename: Ling-yan
authors.initials: LY
authors.lastname: Mo
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
authors.forename: Shuo
authors.initials: S
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D019929:Cochlear Implantation; D007758:Ear, Inner / Q000002:abnormalities* / Q000601:surgery*; D004432:Ear, Middle / Q000002:abnormalities / Q000601:surgery; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000151:congenital / Q000534:rehabilitation / Q000601:surgery*; D006801:Humans; D008297:Male; D017755:Prosthesis Fitting; D012189:Retrospective Studies; D013067:Speech Perception; D016896:Treatment Outcome