![Plan of Attack ,[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Similar to Devices to help you hear
Similar to Devices to help you hear (20)
Recently uploaded
Recently uploaded (20)
Devices to help you hear
- 1. Opportunities with Implantable Hearing Technologies Douglas D. Backous, MD, FACS Medical Director, Swedish Center for Hearing and Skull Base Surgery Seattle, Washington USA SNI Grand Rounds January 6, 2011
- 5. Left bone Right air Left air 100% 100% Right bone Understanding the Audiogram Normal Mild Hearing Loss Moderate Hearing Loss Severe Hearing Loss Profound Hearing Loss
- 6. Left bone Right air Left air 82% 100% Right bone Case 1
- 7. Hearing Aids
- 11. Right bone Left air 52% 100% Right air Case 2 43 year old female with chronically draining right radical mastoid cavity
- 12. Baha
- 13. Left bone Left air CNE 100% Right bone Single-sided Deafness 61 year old white male with Sudden hearing loss 2 years ago
- 14. SSD Solution with Baha
- 17. Cochlear Implants Cochlear Corporation, Ltd. (Lane Cove, Australia) MED-EL (Innsbruck, Austria) Advanced Bonics (Sylmar, California)
- 18. Left bone CNE CNE Right bone Severe to Profound Hearing Loss 49 year old white male with progressive hearing loss
- 19. Cochlear Implant System An internal implant placed just under the skin, behind the ear 1 And an external sound processor 2
- 21. Candidacy Criteria Adults Adults/children 2+ Adults/children 1+ Speech recognition criteria Adults : < 50% sentences in ear to be implanted < 60% bilaterally (best aided condition) Children: <30% MLNT or LNT best aided Frequency (Hz)
- 23. Cochleostomy Positioning ← incudo- stapedial joint ↑ ↑ Scala tympani cochleostomy site Prior cochleostomy site (Risk to basilar membrane)
- 25. Outcomes
- 27. Hearing loss in the U.S. 1.Kochkin, S. The Hearing Review,(2005); July. 2.Blanchfield, B.B.. JAAA. (2001);12: 183-189. 3.Available Mkt- National Institute on Deafness & Communication Disorders (NIDCD) 2004 4. Recipients– Internal Cochlear data Total hearing loss 1 1.6% annual growth rate 32m Potential device candidates 2,3 1 - 1.2 million severe-profound and profound 1 million SSD, mixed and conductive ~2m Total implanted population 4 10% Cochlear Implant /1% Baha <100k
- 29. Auditory Pathway
- 31. Nucleus 24 ABI Receiver-stimulator Monopolar reference electrodes Micro-coiled electrode wires Electrode array (21 platinum disks 0.7mm diameter) T-shaped PET mesh Removable magnet Stabilisation PET mesh
- 32. Position of the ABI in the Brainstem
- 37. Thank you
Editor's Notes
- A sound processor picks up sound vibrations. An abutment transfers sound from the Baha device to the implant. A small titanium implant transfers the sound vibrations via the skull bone to the functioning cochlea.
- Typical audiogram ranges
- Sudden, progressive, etc. How long without sound? (hearing aids) Spoken vs. sign
- HINT sentence scores in quiet (Q): N=53. HINT sentence scores in noise preoperative (N)=19 and postoperative (N)=53 The reason for the different Ns in quiet and noise is that only patients who performed >20% in quiet were tested in noise. Only 19 subjects scored over 20% in noise preoperatively . Therefore, those 19 subjects were tested preoperatively in noise and all 53 were tested postoperatively in noise.
- Patients currently being helped: < 10% cochlear implant < 1% Baha implant
- Important to have a highly motivated patient. Counseling is imperative. It is important that the patient and family understand what benefits the device will provide- improve lip-reading and detect environmental sounds. It takes time to learn to use the information provided by the device.
- PET mesh added to help stabilize device and minimize movement.
- Translab approach typically used this surgical photo demonstrates the appropriate location for the array, near the point where the eighth nerve enters the brainstem
- READ SLIDE
- The ABI can help patients communicate by improving lipreading and hearing environmental sounds. A small number of patients experience open set understanding. True benefit often underestimated Helps recipient cope with their illness ABI can reduce isolation and improve their quality of life