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Intracochlear fibrosis and the foreign body response to cochlear implant biomaterials
Journal article   Open access   Peer reviewed

Intracochlear fibrosis and the foreign body response to cochlear implant biomaterials

Megan J. Foggia, Rene Vielman Quevedo and Marlan R. Hansen
Laryngoscope investigative otolaryngology, Vol.4(6), pp.678-683
12/2019
DOI: 10.1002/lio2.329
PMCID: PMC6929576
PMID: 31890888
url
https://doi.org/10.1002/lio2.329View
Published (Version of record) Open Access

Abstract

Objective To report current knowledge on the topic of intracochlear fibrosis and the foreign body response following cochlear implantation (CI). Methods A literature search was performed in PubMed to identify peer‐reviewed articles. Search components included “cochlear implant,” “Foreign body response (FBR),” and “fibrosis.” Original studies and review articles relevant to the topic were included. Results Ninety peer‐reviewed articles describing the foreign body response or intracochlear fibrosis following CI were included. Conclusions Intracochlear fibrosis following CI represents a significant limiting factor for the success of CI users. Several strategies have been employed to mitigate the foreign body response within the cochlea including drug delivery systems and modifications in surgical technique and electrode design. A better understanding of the FBR has the potential to improve CI outcomes and the next generation of cochlear prostheses. Intracochlear fibrosis following CI represents a significant limiting factor for the success of CI users. Several strategies have been employed to mitigate the foreign body response within the cochlea including drug delivery systems and modifications in surgical technique and electrode design. A better understanding of the FBR has the potential to improve CI outcomes and the next generation of cochlear prostheses.
biomaterials cochlear implant fibrosis foreign body response impedance

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