2 nd august 2013 cochlear implants for ssd emma van wanrooy, scic
TRANSCRIPT
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2nd August 2013
Cochlear Implants for
SSD
Emma van Wanrooy, SCIC
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SSD
Binaural Hearing Benefits • Head Diffraction Effects
• Binaural Squelch• Localisation
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SSD
Binaural Hearing Benefits
Head Diffraction Effects
Dillon, 2012
-SNR +SNR
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SSD
Binaural Hearing Benefits • Head Diffraction Effects
• Binaural Squelch
• Localisation
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SSD
Binaural Hearing Benefits
Localisation
Dillon, 2012
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SSD
A “significant hearing loss in 1 ear”
Advisory group for single sided deafness, 2003
Also known as unilateral hearing loss
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SSD
Features
• Severe to profound • Often sudden onset
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SSD
Causes •Physical damage /Trauma•Compression of the hearing nerve•Viral or bacterial infections•Disorders of the circulatory system•Severe Ménière’s disease
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SSD
Impact•Difficulty hearing on impaired side•Poor localisation•Difficulty hearing in noise•Tinnitus
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SSD
Rehabilitation devices •Hearing Aid (if sufficient
hearing)•Cros Aid•Bone conductor•Bone anchored device •eg/ bonebridge
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SSD
Treatment
Until now…………..
What about cochlear implants?
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• Improvement in speech perception in noise S0N0, SciNhe
• Significantly better SSQ scores at 3 months
• 1-3 hours/day rehab
SSD
Tavora-Vieira et al 2012
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• SnhNci speech comprehension better than CROS/BAHA, but not better than unaided.
• Better than unaided, CROS and BAHA for SciNnh
SSD
Arndt, et al, 2010
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• Localisation significantly better with CI
• SSQ at 6 months post CI significantly better
• CI used significantly longer per day
• Significant decrease in tinnitus loudness
SSD
Arndt, et al, 2010
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• Definition of ‘SSD’
• Auditory training/ loudness balancing
• Music appreciation
• Candidacy assessment
SSD
Further research needed
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SSD
Personal experiences
• 47 year old female
• Sudden loss in right ear 18 years prior
• Extreme tinnitus
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SSD
Personal experiences
“The hearing in my left ear was perfect and not affected ….the tinnitus .. seemed to mask what my good ear was trying to hear .…a constant challenge to keep my sanity”
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SSD
Personal experiences
. “In harms way when walking up streets with traffic I just couldn’t hear or the direction in which it was coming”
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SSD
Personal experiences • Referred for BAHA
trial and tinnitus counselling
• Implanted with Med El Sonata
• Tinnitus reported gone instantly
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SSD
Personal experiences
“I’m a lot more balanced and my sense of direction has improved so much it is unbelievable……I now look forward to going out and socialising, I’m more relaxed and am enjoying life more.”
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SSD
Personal experiences
“I experiment by turning my processor off. Huge difference. Can’t wait to turn it back on again…. when I turn it back on it is such a relief. It just feels so much better, so balanced.”
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SSD
Personal experiences
Aided Speech Perception 6 months
post
Right CI
CUNY @ 65dB SPL 100%CUNY in noise (+10dB SNR)
93%
CUNY in noise (+ 5dB SNR)
100%
CUNY in noise (0dB SNR)
86%
CNC words @65dB SPL
86%
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SSD
Personal experiences
• Female aged 23• Musician and singer,
studying musicology• Meningitis and lost
hearing in Left ear
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SSD
Personal experiences • Loss of spatial
separation of sounds• Difficult to identify
sounds that were similar. Eg/ tap running, rain, boiling water
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SSD
Personal experiences Implanted 15 months later–
Med El Sonata Implant using FSP
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SSD
Personal experiences • At switch on, focussed
on loudness and balancing
• Did a lot of auditory training
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SSD
Personal experiences
• Improved directional hearing
• Good speech understanding
• Better able to follow conversation in a group in noise
• Mobile phone in noise better
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SSD
Personal experiences
Unable to perform well in musical when batteries went flat in Speech Processor
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SSD
Take into consideration • Duration of deafness
• Goals:• Tinnitus relief• Localisation• Listening in noise
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SSD
Why CI? • Relief from severe tinnitus
• Improved localisation/ spatial awareness
• Improved utilisation of head shadow effects in noise
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SCIC
AUSTRALIA’S LARGEST COCHLEAR IMPLANT
PROGRAMME
SYDNEY | NEWCASTLE | CANBERRA | GOSFORD |
LISMORE | PORT MACQUARIE | PENRITH
www.scic.org.au
Thank You
SCIC