Abstract
To investigate the benefit of intraoperative auditory brainstem response (ABR) measurements in revision active middle ear implant surgery. Retrospective data analysis. Tertiary referral center with a large active middle ear implant program. Intraoperative ABR thresholds, audiogram, sound field thresholds, speech understanding in the Freiburger monosyllabic word test. Fourteen patients with active middle ear implant revision surgery. The application of the ABR measurement resulted in improved sound field thresholds and enhanced speech understanding. Analysis revealed a significant correlation of intraoperative gain in ABR threshold with the postoperative gain in sound field thresholds. ABR monitoring can be a useful tool to provide information intraoperatively about the coupling efficiency of the FMT. Especially in revision surgeries, this might help to improve postoperative hearing success.
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