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VOLUME 2 , ISSUE 2 ( May-August, 2010 ) > List of Articles

REVIEW ARTICLE

Auditory Brainstem Implants

Mohan Kameswaran, S Raghunandhan

Keywords : Auditory brainstem implant (ABI),Neurofibromatosis 2 (NF-2),cochlear nerve aplasia

Citation Information : Kameswaran M, Raghunandhan S. Auditory Brainstem Implants. Int J Otorhinolaryngol Clin 2010; 2 (2):151-155.

DOI: 10.5005/jp-journals-10003-1029

Published Online: 01-12-2010

Copyright Statement:  Copyright © 2010; The Author(s).


Abstract

Auditory brainstem implants (ABIs) are currently indicated for patients with neurofibromatosis type 2 (NF-2) tumors involving both vestibulocochlear nerves. The ABI helps bypass the damaged cochlear nerves and stimulates the cochlear nucleus in the brainstem directly thereby restoring auditory sensation. The implant is usually placed in the lateral recess of the fourth ventricle after tumor resection. The indications for ABI have recently expanded onto even nontumoral cases, such as congenital bilateral cochlear nerve aplasia. In such cases, the ABI helps bypass the nonfunctioning hypoplastic or absent cochlear nerves and stimulates the cochlear nucleus directly thereby restoring auditory sensation. This article reviews the nuances of this sophisticated implant, shares our experience with auditory brainstem implantation and its current status in world literature.

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  1. Auditory brainstem implantation in 12- to 18-year-old. Arch Otolaryngol Head Neck Surg May 2004;130(5):656–59.
  2. Auditory brainstem implantation in-patients with neurofibromatosis type 2. Laryngoscope. Dec 2004;114(12): 2135–46.
  3. Surgical experiences in 58 cases using the Nucleus 22 multichannel auditory brainstem implant. The Journal of Laryngology and Otology. Dec 2000;114(27):23–26.
  4. Hearing restoration with auditory brainstem implant in three children with cochlear nerve aplasia. Otol Neurotol Sep 2002; 23(5):682–93.
  5. Auditory brainstem implant as a salvage treatment after unsuccessful cochlear implantation. Otol Neurotol Jul 2004;25(4):485–96.
  6. Auditory outcomes in tumor vs. non-tumor patients fitted with auditory brainstem implants. Advances in Otorhinolaryngology, 2006;64:167–85.
  7. Auditory brainstem implant in bilateral and completely ossified cochlee. Otol Neurotol. Jan 2003;24(1): 79–82.
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