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  • Title: [Bone anchored hearing aid (BAHA): clinical evaluation].
    Author: Jankowski R, Pialoux R, Labaeye P, Simon C.
    Journal: Ann Otolaryngol Chir Cervicofac; 1998 Dec; 115(6):315-20. PubMed ID: 9922827.
    Abstract:
    UNLABELLED: The bone-anchored hearing aid (BAHA) allows direct bone-conduction through a titanium implant. This avoids skin irritation and seems to improve the sound quality when compared with a conventional bone hearing aid. Aim of this work was to evaluate this new hearing-aid. PATIENTS AND METHODS: 9 patients have been operated on between May 1994 and April 1997. Two aural atresia and 7 radical mastoidectomy; 6 had prior conventional bone hearing aid and one a bilateral air-conduction hearing aid. Their mean bone conduction threshold was 28 dB (17-38 dB). Their maximum speech discrimination score was 100%. Audiological tests and questionnaires were used for the evaluation. RESULTS: The mean follow-up was 9-months (3-35). Osseointegration succeeded in the 9 cases. Skin tolerance was excellent in 6 cases. 3 patients had transient adverse skin reactions, with one having needed a revision surgery under local anesthesia. All patients use their BAHA everyday. The mean prosthesis gain was 36 dB (20-50 dB). Eight patients completed the questionnaire. Patients reported an overall satisfaction score between 9 and 10 (range 6-10). BAHA advantageously replaced the prior hearing aid (mean satisfaction score: 9.1 for BAHA versus 5.9). The only complaints were sensitivity to wind noise and lack of a phone connexion.
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