Performing Intracochlear Electrocochleography during Cochlear Implantation

Klaus Schuerch, Manuel Waser, Georgios Mantokoudis, Lukas Anschuetz, Wilhelm Wimmer, Marco Caversaccio, Stefan Weder

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Electrocochleography (ECochG) measures inner ear potentials generated in response to acoustic stimulation of the ear. These potentials reflect the residual function of the cochlea. In cochlear implant candidates with residual hearing, the implant electrode can directly measure ECochG responses during the implantation process. Various authors have described the ability to monitor the inner ear function by continuous ECochG measurements during the surgery. The measurement of ECochG signals during surgery is not trivial. There are no interpretable signals in up to 20% of cases. For a successful recording, a standardized procedure is recommended to achieve the highest measurement reliability and avoid possible pitfalls. Therefore, seamless collaboration between the CI surgeon and CI technician is key. This video consists of an overview of the system setup and a stepwise procedure of performing intracochlear ECochG measurements during CI surgery. It shows the surgeon's and the CI technician's roles in the process, and how a smooth collaboration between the two is made possible.

Original languageEnglish
Article numbere63153
JournalJournal of Visualized Experiments
Issue number181
StatePublished - Mar 2022
Externally publishedYes


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