Open Access
CC BY-NC-ND 4.0 · Laryngorhinootologie 2022; 101(S 02): S257
DOI: 10.1055/s-0042-1746839
Poster
Otology / Neurootology / Audiology: Active middle ear implants / bone conduction hearing system

Audiological long-term results for the Vibrant Soundbridge with round window coupling

Authors

  • Nicole Knölke

    1   Medizinische Hochschule Hannover, Hals- Nasen- OhrenheilkundeHannover

  • Susan Busch

    1   Medizinische Hochschule Hannover, Hals- Nasen- OhrenheilkundeHannover

  • Hannes Maier

    1   Medizinische Hochschule Hannover, Hals- Nasen- OhrenheilkundeHannover

  • Thomas Lenarz

    1   Medizinische Hochschule Hannover, Hals- Nasen- OhrenheilkundeHannover
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    Introduction 

    Since 2005, the Floating Mass Transducer (FMT) of the Vibrant Soundbridge is successfully coupled to the round window. Audiological and clinical long-term data – implanted 5 years or longer – was analyzed, firstly) to investigate the first available RW-Coupler, and secondly to evaluate the safety of the RW-coupling.

    Material and Methods 

    Data was available for 60 patients (65 ears). Investigated appointments were 3 months (3M) and 5 years (5Y), considering average air and bone conduction thresholds PTA (PTAAC,BC) and the word recognition score (Freiburg monosyllables at 65 dB SPL presentation level), as well as revision and explantation rates.

    Results 

    45 Data sets were available (30 without coupler, 15 RW-coupler) at the 5 years follow up appointment. Mean age of the patients was 57 years at surgery. Seven patients were explanted before 5Y (10, 8 %, not device or surgery related), the other patients were lost to follow up. The PTAACpreOP was 82.2 dB HL and the PTA BCPreOP 37.8 dB HL. Postoperative BC thresholds shifts from PTABC3M  = 37.3 dB HL to PTABC5Y  = 41.4 dB HL were not clinical relevant and not statistically significant. The median WRS was stable at both postoperative appointments (WRS3M=85, WRS5J=80), with WRSpreOP of 0% (n=24).

    Conclusion 

    Patients with a high air bone gap could be treated successfully with the Vibrant Soundbridge coupled to the round window, and even after 5 years good long-term audiological results were achieved.


     

    Conflict of Interest

    The author declares that there is no conflict of interest.

    Publication History

    Article published online:
    24 May 2022

    © 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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