Abstract
Introduction: During postoperative implant control, we observed extraordinary peaks in transimpedance measurements. While searching for a possible reason, it appeared that they might correlate with scalar dislocations. Methods: In this retrospective case series, six adult CI patients who underwent transimpedance measurements and postoperative imaging were analyzed. Intra- and postoperative transimpedance measurements were visual inspected. The intracochlear position of electrodes was radiologically identified. Results: From 6 patients with transimpedance matrices showing an extraordinary peak in the off-diagonal area, five electrode arrays showed no correct scalar localization in the scala tympani, and one had a correct scalar localization in the scala tympani. Conclusions: A peaking transimpedance might be a marker for scalar dislocation in CIs.
Journal Section:
Brief Report
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