title: [Analysis of the effect of cochlear implant for the patients with acoustic neuroma in the only hearing ear].
abstract: OBJECTIVE
  To discuss the method as well as effect of hearing restoration for patients with acoustic neuroma (AN) in the only hearing ear.
  
  
  METHODS
  A retrospective study was conducted in three patients with AN in the only hearing ear. Ipsilateral cochlear implantation (CI) was performed in case 1 and contralateral CI was performed in case 2 without tumor resection. In case 3, CI was performed 6 months after tumor removal by the retrosigmoid approach. Dynamic changes in the audiological tests was recorded regularly.
  
  
  RESULTS
  In case 1 and case 2, no matter which side CI was performed, pure tone average (PTA) was improved clearly, and speech discrimination score (SDS) was slightly increased. In case 3, hearing loss was observed after tumor removal. Simultaneous bilateral CI after 12 months was performed in this case. PTA on both sides was largely lower than that before CI, and SDS was slightly improved. With bilateral CI, SDS was improved, especially in noise, compared with unilateral CI on either side.
  
  
  CONCLUSIONS
  For patients with AN in the only hearing ear, CI can significantly improve PTA, and SDS can be slightly increased. Bilateral CI should improve the outcome of hearing restoration compared with unilateral CI.
authors.affiliation: Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose diseases, Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 20092, China.
authors.forename: Z R
authors.initials: ZR
authors.lastname: Huo
authors.affiliation: Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose diseases, Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 20092, China.
authors.forename: Z H
authors.initials: ZH
authors.lastname: Zhang
authors.affiliation: Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose diseases, Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 20092, China.
authors.forename: Q
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose diseases, Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 20092, China.
authors.forename: J
authors.initials: J
authors.lastname: Yang
authors.affiliation: Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose diseases, Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 20092, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Li
authors.affiliation: Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose diseases, Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 20092, China.
authors.forename: M P
authors.initials: MP
authors.lastname: Huang
authors.affiliation: Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose diseases, Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 20092, China; Department of Otorhinolaryngology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China.
authors.forename: H
authors.initials: H
authors.lastname: Wu
mesh_terms: D001301:Audiometry, Pure-Tone; D019929:Cochlear Implantation; D003054:Cochlear Implants; D005260:Female; D034381:Hearing Loss / Q000209:etiology; D006320:Hearing Tests; D006801:Humans; D008297:Male; D009464:Neuroma, Acoustic / Q000503:physiopathology* / Q000601:surgery; D009622:Noise; D011183:Postoperative Complications; D012189:Retrospective Studies; D013067:Speech Perception; D016896:Treatment Outcome