Intraoperative recording of auditory brainstem responses for monitoring of floating mass transducer coupling efficacy during revision surgery

• Verfasst von: Fröhlich, Laura [VerfasserIn]
• Verfasst von: Rahne, Torsten [VerfasserIn]
• Verfasst von: Plontke, Stefan K.-R. [VerfasserIn]
• Verfasst von: Oberhoffner, Tobias [VerfasserIn]
• Verfasst von: Dziemba, Oliver Christian [VerfasserIn]
• Verfasst von: Gadyuchko, Maria [VerfasserIn]
• Verfasst von: Hoth, Sebastian [VerfasserIn]
• Verfasst von: Agha-Mir-Salim, Parwis [VerfasserIn]
• Verfasst von: Müller, Alexander [VerfasserIn]
• Titel: Intraoperative recording of auditory brainstem responses for monitoring of floating mass transducer coupling efficacy during revision surgery
• Titelzusatz: proof of concept
• Verf.angabe: Laura Fröhlich, Torsten Rahne, Stefan K. Plontke, Tobias Oberhoffner, Oliver Dziemba, Maria Gadyuchko, Sebastian Hoth, Parwis Mir-Salim, Alexander Müller
• E-Jahr: 2020
• Jahr: February 2020
• Umfang: 4 S.
• Fussnoten: Gesehen am 17.08.2020
• Titel Quelle: Enthalten in: Otology & neurotology
• Ort Quelle: Philadelphia, Pa. : Lippincott Williams & Wilkins, 1979
• Jahr Quelle: 2020
• Band/Heft Quelle: 41(2020), 2, Seite e168-e171
• ISSN Quelle: 1537-4505
• DOI: doi:10.1097/MAO.0000000000002511
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1727129695

Abstract

OBJECTIVE: The objective of the study was to measure auditory brainstem responses elicited by stimulation via a semi-implantable active middle ear implant with an electromagnetically driven floating mass transducer to quantify the coupling efficacy (=vibroplasty in situ thresholds-bone conduction thresholds) in a patient during a revision surgery. - PATIENTS: One patient, reimplanted with an active middle ear implant in a revision surgery. - INTERVENTION(S): Diagnostic. - MAIN OUTCOME MEASURE(S): Intraoperative auditory brainstem responses evoked by stimulation via an active middle ear implant in a calibrated set-up directly indicating the coupling efficacy magnitude (auditory brainstem response threshold=coupling efficacy), as well as pre- and postoperative bone conduction and vibroplasty in situ thresholds. - RESULTS: The intraoperative auditory brainstem response threshold was detected at 0dB nHL, i.e., the magnitude of coupling efficacy was determined intraoperatively to be 0dB. The actual postoperative coupling efficacy (=postoperative vibroplasty in situ-postoperative bone conduction thresholds) was -2.5dB. - CONCLUSIONS: The coupling efficacy determined intraoperatively was consistent with the postoperative coupling efficacy. The described method seems to be a promising tool to objectively quantify the magnitude of coupling efficacy in active middle ear implant surgeries.