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Hearing from the Other Side: Understanding the Candidacy for SSD and Treatment Options

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1.  Which statement best describes Single Sided Deafness Candidacy? There are two functional cochleas The is one poor ear with a non-functional cochlea There is one good ear with a functional cochlea with a PTA threshold less than or equal to 20 dB The poor or "bad" ear has not or will not receive benefit when traditional acoustic amplification is applied. All answers except A

2.  What are some of the common etiologies for SSD? Sudden idiopathic deafness Genetic factors Trauma Surgical intervention such as the removal of an acoustic neuroma All of the above

3.  What term is used to describe when high frequency sounds come from one side of the head and attenuate signals coming from the hearing field of the poor side. Localization Transcranial attenuation Speech perception The head shadow effect

4.  How does the Baha System work for patients with SSD? The signal is routed to the normal hearing ear It transfers sound from the deaf side to the healthy cochlea on the hearing side The signal is routed via radio signal to the hearing ear A & B

5.  The Baha System is an effective solution for SSD Patients because It helps to lifts the head shadow It helps to improve speech understanding in noisy environments Of long term patient satisfaction and hearing benefits Of improved sound quality due to direct bone conduction All of the above

6.  A benefit of a bone conduction system over CROS hearing aids is No hardware in the hearing ear No need to wear hearing devices on both ears No occlusion of the hearing ear All of the above

7.  Which statement below is correct for evaluating a candidate with SSD and a bone conduction solution? Masked Pure tone thresholds for the normal hearing ear gives a good indication of how a patient is expected to perform with background noise Benefit can be measured using hearing in noise tests (such as QuickSin or HINT) to compare the signal to noise ratio difference between the aided and unaided situation is Both A and B None of the above

8.  Patient speech-in-noise measurements can be used as an accurate predictor of Overall benefits of a bone conduction system for patients with SSD prior to implantation Overall patient satisfaction from using a bone conduction system prior to implantation Overall patient performance with using a bone conduction system prior to implantation None of the above

9.  When fitting a Baha Sound Processor, the following considerations are important Unmasked thresholds are needed for the Baha fitting software Patient hearing expectations, cosmetics, hygiene and dexterity Care must be taken to not misinterpret vibrotactile perceptions as hearing. All of the above

10.  What is an important consideration when fitting Softband or Baha Attract in and SSD fitting? Fitting with a power processor may help to overcome transcranial attenuation and soft tissue attenuation That the implant site is 15 mm behind the ear Patient must be at least 3 years old to use a Softband Baha Attract is not approved for use with SSD hearing loss