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Intracochlear insertion of electrodes using hyaluronic acid in cochlear implant surgery

Published online by Cambridge University Press:  08 March 2006

Roland Laszig
Affiliation:
Department of Otorhinolaryngology - Head and Neck Surgery, University of Freiburg, Freiburg, Germany.
Gerd Jürgen Ridder
Affiliation:
Department of Otorhinolaryngology - Head and Neck Surgery, University of Freiburg, Freiburg, Germany.
Milo Fradis
Affiliation:
Department of Otolaryngology - Head and Neck Surgery, Bnai Zion Medical Center, Bruce Rappaport Faculty of Medicine, Technion-Israel Instituute of Technology, Haifa, Israel

Abstract

Hyaluronic acid has been proposed as a lubricant for improving the outcome of cochlear implant surgery. We describe a method which includes coating the electrodes with a thin layer of hyaluronic acid as well as using a droplet of the lubricant on the cochleostomy to provide additional magnification, like a lens, that facilitates the insertion of the electrode array. The use of hyaluronic acid reduces trauma to the cochlea and avoids contaminating perilymph by blood or by saline used during the operation. It is an efficacious and reliable method for cochlear implant surgery.

Type
Brief Report
Copyright
© Royal Society of Medicine Press Limited 2002

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