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DOI: 10.1055/s-0041-1728429
Application of hypothermal techniques for cochlear implantation Application of hypothermal techniques for cochlear implantation Application of hypothermal techniques for Cochlear Implantation
Background: Preservation of residual hearing is the aim of modern cochlea implantation. Beside electrodes and specific insertion techniques, hypothermia has been shown experimentally to increase the probability to preserve residual hearing. A substantial decrease of the temperature was found to be necessary. The human clinical application is more challenging than the animal experimental evaluation.
The aim of the study was to evaluate different hypothermal application techniques in temporal bones for cochlear implantation.
Methods: We positioned micro-fiberoptic thermal sensors in the scala vestibuli of a cochlea in temporal bones. Steady state temporal bone temperature was reached by infrared application at a defined distance. Temperature application was performed by insertions of cooled electrodes.
Results: Cooled insertions lead to a temporally decrease of the intracochlear temperature by 1 °C.
Conclusion: Decreasing the intracochlear temperature during the surgical procedure is possible. The clinical evaluation of this techniques for preservation of residual hearing needs to be further observed.
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Der Erstautor gibt keinen Interessenskonflikt an.
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Publication History
Article published online:
13 May 2021
© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
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