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Biomechanics and Immunomediated Mechanisms in the Cochlear Implant Rejection | OMICS International | Abstract
ISSN: 2157-7552

Journal of Tissue Science & Engineering
Open Access

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Research Article

Biomechanics and Immunomediated Mechanisms in the Cochlear Implant Rejection

Navarrete ML1*, Fuentes JF, Herrero T2, Velasco M2, González M1 and Moya JR1

1Autonomous University of Barcelona, Barcelona, Spain

2Departments of Otorhinolaryngology and Phoniatrics, Vall d´Hebron Hospital, Autonomous University of Barcelona, Spain

Corresponding Author:
Dr. M L. Navarrete
Autonomous University of Barcelona
C/ Balmes 434, 1º A 08022, Barcelona, Spain
E-mail: [email protected]

Received date: December 22, 2011; Accepted date: January 10, 2012; Published date: January 12, 2012

Citation: Navarrete ML, Fuentes JF, Herrero T, Velasco M, González M, et al. (2012) Biomechanics and Immunomediated Mechanisms in the Cochlear Implant Rejection. J Tissue Sci Eng 3:112. doi:10.4172/2157-7552.1000112

Copyright: © 2012 Navarrete ML, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Patients with bilateral and severe neurosensorial hypoacusia are candidates for cochlear implantation. Eventhough it’s a relatively modern procedure, it has a very low rate of complications (5-10%), making it a safe surgery. The Cohen classification is currently used to measure and group the complications of this surgery, classifying them according to the moment in which they appear whether it’s intraoperative or postoperative time. We present the case of a female patient who suffered the extrusion of the implant several months after the procedure. She was re-operated successfully, but she returned months later with a second extrusion of the same implant. We did not find any other report of this phenomenon in the revised literature. We present this case with pictures of the repair surgery and the patient’s current condition. We also analyze possible causes of this cochlear implant rejection, citing both magnetomechanical and immunomediated factors.

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