Literature DB >> 26209350

Bilateral duplication of the internal auditory canal: a case with successful cochlear implantation.

Ippei Kishimoto1, Saburo Moroto1, Keizo Fujiwara1, Hiroyuki Harada1, Masahiro Kikuchi1, Atsushi Suehiro1, Shogo Shinohara1, Yasushi Naito2.   

Abstract

We report a case of bilateral duplication of the internal auditory canal (IAC). An 11-month-old girl with congenital profound hearing loss was referred to our hospital. Imaging evaluations revealed bilateral IAC duplication, which contained the facial and cochleovestibular nerves in one canal, but no nerves in the other. She underwent cochlear implantation. At 5 months after surgery her hearing thresholds with the cochlear implant are 40 and 45dB at 2000 and 4000Hz, respectively. Bilateral duplicated IAC is extremely rare, with seven cases reported in the literature. This case represents a previously unreported type of IAC duplication, and is the first case in which cochlear implantation was successfully performed.
Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Entities:  

Keywords:  Cochlear implant; Duplicated internal auditory canal; Gusher; Inner ear malformation; Temporal bone CT; Vestibular aqueduct

Mesh：

Year:  2015        PMID： 26209350     DOI： 10.1016/j.ijporl.2015.07.004

Source DB:  PubMed          Journal:  Int J Pediatr Otorhinolaryngol        ISSN： 0165-5876            Impact factor:   1.675


  2 in total

1.  De novo sensorineural hearing loss sequelae of narrow, duplicated internal auditory canal: Case series and literature review.

Authors:  Abdulaziz Saud AlEnazi; Abdulaziz Alshaiji; Meaad Alenezi; Abdulaziz Al-Sharydah; Sari Alsuhibani; Ali Alhaidey; Adnan Samarah; Munahi AlQahtani
Journal:  Int J Surg Case Rep       Date:  2022-04-20

2.  Duplicated Internal Auditory Canal: High-Resolution CT and MRI Findings.

Authors:  Linsheng Wang; Lihong Zhang; Xian Li; Xiang Guo
Journal:  Korean J Radiol       Date:  2019-05       Impact factor: 3.500
  2 in total

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