Multicenter clinical study of vibrant soundbridge in Japan: Analysis of subjective questionnaires

Kozo Kumakawa, Sho Kanzaki, Shinichi Usami, Satoshi Iwasaki, Noboru Yamanaka, Katsumi Doi, Yasushi Naito, Kiyofumi Gyo, Tetsuya Tono, Haruo Takahashi, Yukihiko Kanda

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The Vibrant Soundbridge VSB is an active middle ear implant with the Floating Mass Transducer FMT. We performed a multicenter study to study the efficacy of the VSB by means of "the 10 Questionnaire on Hearing 2002" and "the APHAB questionnaire" at 13 hospitals between 2011 and 2013. In all, 23 patients with mixed or conductive hearing loss received VSB implantation by the round window placement technique. These individuals were generally unable to use, or gained little from conventional hearing aids or bone conduction hearing aids. Two questionnaires were administrated before the surgery and 20 weeks after the VSB implantation. Scores on every item of "the 10 Questionnaire on Hearing 2002" showed significant improvement under noise after VSB implantation. On the APHAB, the scores for Ease of Communication, Reverberation, and Background subscales improved significantly after the VSB implantation, while the score for the Aversiveness subscale alone failed to show a positive improvement from the inexperience to the new sound. Analysis of the responses to these subjective questionnaires revealed better results after VSB implantation as compared to the preoperative data. In conclusion, RW vibroplasty with the use of VSB provided subjective benefit in patients with conductive and mixed hearing loss.

Original languageEnglish
Pages (from-to)1309-1318
Number of pages10
JournalJournal of Otolaryngology of Japan
Issue number11
Publication statusPublished - 2015


  • Questionnaires
  • Subjective evaluation
  • Vibrant soundbridge

ASJC Scopus subject areas

  • Otorhinolaryngology


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