Re-implantation of the Rion E-type semi-implantable hearing aid: status of long-term use and hearing outcomes in eight patients

Auris, Nasus, Larynx
Masahiro KomoriK Gyo

Abstract

The Rion Ehime (E)-type implantable hearing aid (IHA) is the first middle ear implant. We implanted 39 IHAs into 39 patients, and found that the IHA functioned well for >15 years. So far, 28 IHAs have been removed because they stopped functioning. An IHA was re-implanted in 8 of the 28 cases. This study assessed the status of long-term use and hearing outcomes in the eight patients to confirm the safety and advantages of repeated implant operation. Current status and operational findings of the eight re-implantees and hearing outcomes were investigated by reviewing the patients' records. Four of the eight cases still use their devices; all four originally suffered from cholesteatoma. In the remaining four cases, the devices stopped functioning 2.4-9.4 years after re-implantation; they suffered from chronic otitis media. Preoperative air and bone conduction hearing and IHA hearing 3 months after the first implantation were 61.1±13.1dB, 40.6±11.3dB, and 26.9±10.5dB, respectively (n=8). At the time of removal, they were 59.4±12.4dB, 40.2±14.2dB, and 42.9±14.9dB, respectively. Three months after re-implantation, they were 60.4±14.6dB, 37.3±14.7dB, and 29.4±13.4dB, respectively. Re-implantation of an IHA is beneficial and safe for p...Continue Reading

References

Aug 1, 1987·Archives of Otolaryngology--head & Neck Surgery·N YanagiharaK Gyo
Dec 1, 1984·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·N YanagiharaH Ikeda
May 1, 1983·Acta Oto-laryngologica·J SuzukiN Yanagihara
Sep 1, 1996·Audiology : Official Organ of the International Society of Audiology·K GyoN Yanagihara
May 31, 2001·Otolaryngologic Clinics of North America·N YanagiharaK Hori
Aug 21, 2010·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Masahiro KomoriKiyofumi Gyo

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Citations

Oct 6, 2014·Otolaryngologic Clinics of North America·Matthew L CarlsonDavid S Haynes
Dec 3, 2014·Otolaryngologic Clinics of North America·Thomas BeleitesThomas Zahnert
May 8, 2018·Clinical Otolaryngology : Official Journal of ENT-UK ; Official Journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery·M L JohanssonT Wright
Nov 10, 2018·Laryngoscope Investigative Otolaryngology·Melodi Koşaner KließPhilipp Mittmann

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