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DOI: 10.1055/s-0038-1640270
Triphasic Pulse Stimulation
Cochlea Implants stimulate the auditory nerve. However some patients experience limitations during fitting of their Cochlea Implant (CI) due to unintended costimulation of the facial nerve. One option to reduce neural costimulation is the application of triphasic pulse stimulation instead of traditionally prefered biphasic stimulation.
Fourteen CI patients received a triphasic fitting map instead of a biphasic fitting map due to previous diagnosed facial nerve stimulation, stimulus induced vertigo or pain, during the years 2014 – 2017.
Biphasic and triphasic fitting maps were compared. To assess the effects of the switch questionaries and hearing test (monosyllables and sentences in noise test) were used.
The triphasic pulse stimulation showed a significant reduction of unintended side effects and allowed, in most cases, an improved quality of life. The understanding of speech with cochlea implant did not change significantly. In some cases an improvement was visible.
Triphasic pulse stimulation has a benefital effect in CI-patients with unintended neural costimulation and should be regarded as a valuable tool during cochlea implant fitting.
Publication History
Publication Date:
18 April 2018 (online)
© 2018. 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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