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Treating Single Sided Deafness

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BAHA – a bone anchored hearing device

How does the BAHA work?

The BAHA device works by transferring sound directly to the inner ear (cochlea), using bone conduction.
The device has three main parts - an external sound processor and abutment, which are attached to a small titanium implant, which is placed in the bone just behind the ear.
Sound is picked up by the sound processor, which transmits sound vibrations through the titanium implant to the skull bone. The sound waves then travel through the patient's skull directly to the working inner ear.
The BAHA device is placed behind the deaf ear and sound is transferred across the skull to the cochlea of the patient’s hearing ear, on the opposite side of their head. A subtle difference in sound, combined with a minimal time delay allows patients to determine from which side the sound originates - helping to restore the sensation of hearing on both sides. Controls on the clip-on device allow the volume to be varied. A directional microphone can be attached to the sound processor to further help 'zoom in' on sound.
The device can be used throughout the day, but needs to be clipped off for swimming, showers and rough sports.


Who is suitable for the BAHA?

Adults or children over three with significant hearing loss in one ear and normal, or close to normal, hearing in the other ear may be suitable for BAHA Once fitted patients must be able to keep the implant clean or have someone to help them do this on a daily basis.
If you are completely deaf in one ear and think you could benefit, talk to your doctor who can refer you to a specialist.


How much will it cost?

In the UK , the surgery and BAHA device is available on the NHS, although waiting lists and the referral processes vary between local NHS trusts. The device is also available privately and on some private health insurance policies, depending on the terms of the policy. The price of the surgery varies from one centre to another. For more detailed information and a list of centres, please contact Entific.
For reimbursement information regarding markets other than the UK, please refer to www.entific.com or call your local Entific office.


How long will I have to wait?

At present in the UK, the waiting time varies around the country for patients suffering with any type of hearing loss.In some cases they may have to wait up to 18 months for treatment on the NHS. This is in addition to the waiting time for assessment.
There are many ENT departments throughout the UK that are now using BAHA to treat SSD.


Advantages of the treatments

Advantages of BAHA Advantages of CROS aid

• Better Sound quality than
CROS aid (proven in clinical testing)
• Discreet and can easily be hidden in the hair
• Does not occlude the
other hearing ear
• No wires


• No surgical procedure required

Disadvantages of the Treatments


Disadvantages of BAHA Disadvantages of CROS aid

• A small surgical procedure is required to insert the tiny (4mm) titanium implant

• Occludes Hearing ear
• Often has an external wire linking the two parts
• Is clearly visible



Link to CROS aid
Back to Treating Single Sided Deafness
Link to More About Single Sided Deafness

Link to Entific website