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Within the UK, the NHS provides digital BTE hearing aids to NHS patients, on long-term loan, free of charge. Other than BAHAs (bone anchored hearing aid) or cochlear implants, where specifically required, BTEs are usually the only style available. Private purchases may be necessary if a user desires a different style.
A bone-anchored hearing aid (BAHA) [2] is a type of hearing aid based on bone conduction. It is primarily suited for people who have conductive hearing losses , unilateral hearing loss , single-sided deafness and people with mixed hearing losses who cannot otherwise wear 'in the ear' or 'behind the ear' hearing aids.
A cochlear implant (CI) is a surgically implanted neuroprosthesis that provides a person who has moderate-to-profound sensorineural hearing loss with sound perception. With the help of therapy, cochlear implants may allow for improved speech understanding in both quiet and noisy environments.
Conductive hearing loss (CHL) occurs when there is a problem transferring sound waves anywhere along the pathway through the outer ear, tympanic membrane (eardrum), or middle ear . If a conductive hearing loss occurs in conjunction with a sensorineural hearing loss, it is referred to as a mixed hearing loss.
Conventional hearing aids which amplify sound can cause distortion for these patients. Therefore, the traditional treatment approach has been a prosthetic device called Baha , which replaces the function of the impaired ear by using a well-established principle called bone conduction to re-route sound through the skull bones to the functional ...
All patients had used hearing aids pre-implantation. The researchers found that speech intelligibility improved with the AMEI, particularly in patients with a down-sloping hearing loss. [ 4 ] These findings were supported by Iwasaki et al, who found that both speech intelligibility and quality of life improved after implantation with an AMEI ...
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