Middle ear implants: functional gain in mixed hearing loss

Osseous atresia and chronic otitis media are diseases benefit with middle ear implants. Surgery for atresia is technically complicated, has significant number of complications and functional results are often poor. The osseointegrated hearing aids are an alternative. They provide a very good functio...

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Bibliographic Details
Published in:Brazilian journal of otorhinolaryngology 2012-01, Vol.78 (1), p.109-112
Main Authors: Zernotti, Mario Emilio, Di Gregorio, Maria Fernanda, Bravo Sarasty, Andrea C.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Audiometry, Pure-Tone
Child
Chronic Disease
Cochlear Implants
Female
hearing loss
Hearing Loss, Mixed Conductive-Sensorineural - etiology
Hearing Loss, Mixed Conductive-Sensorineural - surgery
Humans
Longitudinal Studies
Male
Middle Aged
mixed conductive-sensorineural
Original
Ossicular Prosthesis
otitis media
Otitis Media - complications
prostheses and implants
Severity of Illness Index
suppurative
Treatment Outcome
Young Adult
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Summary:Osseous atresia and chronic otitis media are diseases benefit with middle ear implants. Surgery for atresia is technically complicated, has significant number of complications and functional results are often poor. The osseointegrated hearing aids are an alternative. They provide a very good functional gain, but have many problems with the skin and osseointegration. In chronic otitis media, the ossiculoplasty solved partially the hearing problem. Unfortunately in some cases of otitis media and in open cavities fitted with conventional hearing aids the gain is unsatisfactory. To determine the usefulness of an active middle ear implant. Longitudinal Study. Vibrant-Soundbrigde was implanted in 8 patients with severe mixed hearing loss. 4 patients had chronic otitis media and 4 had unilateral atresia. The placement of the stimulator (FMT or Floating Mass Transducer) was in 5 patients on round window, 2 in stapes and one in the oval window. Functional gain was 35 dB, 40 dB, 48.7 dB and 50 dB for the frequencies 500, 1000, 2000 and 4000 Hz, respectively. Vibrant-Soundbrigde is an excellent option in hearing recovery in severe and profound mixed hearing loss. It also provides an excellent functional gain in diseases difficult to treat with conventional hearing aids.
ISSN:1808-8694
1808-8686
DOI:10.1590/S1808-86942012000100017