title: Effects of Different Insertion Techniques of a Cochlear Implant Electrode on the Intracochlear Pressure.
abstract: To achieve a functional atraumatic insertion, low intracochlear pressure changes during the procedure are assumed to be important. The aim of this study was to observe intracochlear pressure changes due to different insertion techniques in a cochlear model. Cochlear implant electrode insertions were performed in an artificial cochlear model to record intracochlear pressure changes with a micropressure sensor to evaluate the maximum amplitude and frequency of pressure changes under different insertional conditions. We found statistically significant differences in the occurrence of intracochlear pressure peak changes comparing different techniques. Based on our model results, an insertion should be maximally supported to minimize micromovement-related pressure changes.
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, Unfallkrankenhaus Berlin, Berlin, Germany.
authors.forename: Ingo
authors.initials: I
authors.lastname: Todt
authors.forename: Arneborg
authors.initials: A
authors.lastname: Ernst
authors.forename: Philipp
authors.initials: P
authors.lastname: Mittmann
mesh_terms: D003051:Cochlea / Q000601:surgery*; D019929:Cochlear Implantation / Q000379:methods*; D003054:Cochlear Implants; D004567:Electrodes, Implanted; D006801:Humans; D008953:Models, Anatomic; D011312:Pressure; D012405:Round Window, Ear / Q000601:surgery*