Objective: To investigate the benefit of intraoperative auditory brainstem response (ABR) measurements in revision active middle ear implant surgery.
Study Design: Retrospective data analysis.
Setting: Tertiary referral center with a large active middle ear implant program.
Main Outcome Measures: Intraoperative ABR thresholds, audiogram, sound field thresholds, speech understanding in the Freiburger monosyllabic word test.
Patients: Fourteen patients with active middle ear implant revision surgery.
Results: 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.
Conclusion: 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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