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Bone-Anchored Hearing Aids

Understanding Bone Anchored Hearing Aids (BAHAs)

Bone anchored hearing aids (BAHAs) are the only implanted solution that utilize direct bone conduction. Unlike traditional hearing aids, BAHAs lack an outer ear component, making them particularly suitable for individuals with congenital anomalies in their outer ear structures, such as malformed or undeveloped pinnae or ear canals. They have also been successfully implanted for those with unilateral sensorineural hearing loss, significantly improving hearing from the affected side.

The BAHA implantation procedure is done under general anesthesia and involves minimal discomfort. A titanium fixture is placed in the skull behind the ear. After about three months, once integrated with the bone, the patient is fitted with a processor that snaps onto the fixture. This processor uses bone conduction to transfer sound to the cochlea, vibrating the fixture and surrounding bones, allowing the cochlea to convert these vibrations into electrical impulses that the brain interprets as sound.

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