The Bonebridge implant in older children and adolescents with mixed or conductive hearing loss: Audiological outcomes.

For children with conductive or mixed hearing loss, in whom use of conventional hearing aids is impossible or limited, use of bone conduction devices is recommended. The choice between the available types of devices depends mostly on the degree of hearing loss, age, and anatomical conditions. One device application in children older than 5 years is the Bonebridge implant. The aim of this study is to assess the benefits and safety of this device in children. The material was a group of 11 older children and adolescents aged 10-17 years (mean = 14.7, SD = 2.45) with single-sided or bilateral conductive or mixed hearing loss, implanted unilaterally with the Bonebridge system at the World Hearing Center in Kajetany near Warsaw between 2014 and 2016. Benefits of the Bonebridge were assessed with warble tone audiometry and word audiometry in free field, as well as an APHAB (Abbreviated Profile of Hearing Aid Benefit) questionnaire before and after implantation. Hearing tests showed a statistically significant improvement in hearing sensitivity and speech discrimination. Results of the questionnaire confirm the benefits of Bonebridge implantation to the older children in terms of their auditory performance under various acoustic conditions. At a one-year follow up the Bonebridge system was found to be a safe, efficient, and effective tool for compensating for conductive or mixed hearing loss in older children and adolescents. For good anatomical conditions the Bonebridge implant provides a safe alternative to other popular bone conduction systems.

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