RESUMEN
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.