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  • Title: Experience of bone-anchored hearing aid implantation in children younger than 5 years of age.
    Author: Amonoo-Kuofi K, Kelly A, Neeff M, Brown CR.
    Journal: Int J Pediatr Otorhinolaryngol; 2015 Apr; 79(4):474-80. PubMed ID: 25680294.
    Abstract:
    OBJECTIVE: To assess the practicality and benefit of Bone-anchored hearing aid (BAHA(®)) implantation in children younger than 5 years of age. FDA approval for use of BAHA(®) only exists for children 5 years of age and older. Their use in Australia is also rare, however their use for younger children is approved by the European Union. We wish to share our experience of implantation in an antipodean setting in this age group. METHODS: Institutional board approval was obtained for this study. All children undergoing BAHA(®) implantation under 5 years old were included from our prospective database. We examined the variety of surgical techniques, (including skin grafting, limited soft tissue reduction and no soft tissue reduction), BAHA(®) implants and abutments used, and use of the new series 400 hydroxyapatite coatings. Demographic data obtained included age at surgery, follow up duration, gender, ethnicity and indication for surgery. Anonymous benefit questionnaires (Glasgow children's benefit inventory (GCBI) and parents' evaluation of aural performance of children (PEACH)) were completed online as well as a questionnaire on device use. Complications recorded included soft tissue reactions, implant loss/removal, abutment replacement/removal. We also assessed whether patient weight, ethnicity or socioeconomic status were risk factors for these complications. RESULTS: 24 Children (26 ears/26 implants) under five years were identified from the database and included in the study. There was a 14:10 male to female ratio. Patient caregivers reported subjective benefit and improved quality of life (QOL) despite setbacks and complications related to BAHA(®) usage. 10/24 (42%) of children required treatment for significant peri-implant skin reactions whilst 25% required replacement of their abutments and/or implants. An increased risk of major complication was associated with socioeconomic deprived backgrounds and in patients of New Zealand Maori and Pacific Island ethnicity but not in patients with increased weight centiles. CONCLUSIONS: The BAHA(®) implant and hearing aid system is of value to children under age 5 years. Parents tolerate the skin reactions and complications because of the perceived benefit in hearing and quality of life. Careful counselling of parents of potential young BAHA(®) implant candidates is necessary in light of this.
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