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Hearing, Hearing Loss, Hearing Help Pamela Fiebig, AuD, Audiologist Northwestern University Dept. of Otolaryngology/Audiology October 14, 2013
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Northwestern Medical Group Dept of Otolaryngology Galter Pavilion, 15 th Floor; 675 N. St. Clair 312-695-8182 l Audiologists –Pamela Fiebig, AuD –Malini Patel, AuD –Denise Greiner, AuD –Michelle Amosson, AuD –Michelle Burns, AuD –Kelly Waldvogel, AuD l Otologists (physician ear specialists) –Alan Micco, MD –Akihiro Matsuoka, MD
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Hearing Loss is Common l 10 Million Americans Report Significant Hearing Loss – 4 Million > 65 y.o. – 5 Million 18-64 y.o. –.5 Million < 18 y.o.
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Age of Hearing Loss Onset Source: National Health Interview Survey, 2007.National Health Interview Survey http://www.nidcd.nih.gov
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More Men Than Women Have Hearing Loss
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How We Hear
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Basic Audiology Tests l Pure-tone Audiometry –Air-Conduction »earphones--evaluates from outer to inner ear –Bone-Conduction »bone vibrator--evaluates inner ear l Word Recognition Testing
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Audiogram
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Normal hearing and Speech Sounds
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Types of Hearing Loss l Conductive Hearing Loss –Outer or Middle Ear-DEMO l Sensorineural Hearing Loss –Cochlea or Auditory Nerve –99% is SENSORY not neural l Mixed Hearing Loss –Both conductive and sensorineural
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Conductive Hearing Loss: Causes and Treatments l Ear Wax (cerumen) or other block l Ear Infection/Fluid in Middle Ear l Otosclerosis l Cholesteotoma l Perforated Eardrum l Can often be “fixed”!
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Sensory Hearing Loss: Causes l Presbycusis (aging) l Ototoxic medication l Meniere’s Disease l Heredity l Noise Exposure l Unknown l Usually CANNOT be “fixed”
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Hearing Loss from Noise Exposure
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Hearing Loss and Aging
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Acoustic Neuroma l Benign Tumor in the Internal Auditory Canal l Symptoms Include –Hearing loss –Tinnitus –Dizziness l Treatment is surgical removal –Hearing is often sacrificed in this ear
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Hearing Aids for Sensory Hearing Loss
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Effect of Hearing Loss on Speech Understanding
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Hearing Aids: Desirable Characteristics l Speech Audibility l Physical comfort l “Audible” comfort – Not too much “background” noise – Not too loud
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BTE (Behind-the-Ear Style)
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ITE (In-the-Ear Style)
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ITC (In-the-Canal Style)
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CIC (Completely in Canal) l Sometimes “extended wear”
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“Mini” Behind-the-Ear
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“BEST” Hearing Aid l Degree/Configuration of loss l Individual Listening Needs l Cosmetics/Style l Ability to Manipulate Small Objects l “Gadget” Tolerance l Cost
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Today’s Hearing Aids: Special Features l Directional Microphones l Noise Reduction Algorithms l Multiple Listening “Programs” l Automatic adjustments l Feedback controls l Bluetooth/wireless compatibility l Left-Right Communications
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What Patients Say About Today’s Hearing Aids... l Speech sounds CLEARER –As distortion decreases, performance increases l MORE sounds are HEARD –Automatic loudness scaling allows more sounds to be audible l Sounds are more COMFORTABLE –Loudness stays within comfort range l I still can’t hear in high levels of background noise –but I do hear better in low to mid-levels of noise
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l Cochlear Implants –For severe-to-profound hearing loss –Where hearing aids are of minimal benefit When Hearing Aids Are Not Enough…
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A Hearing Aid Amplifies Acoustic Energy and Delivers it to the cochlea A Cochlear Implant Converts Acoustic Energy into Electrical Impulses and Stimulates the Auditory Nerve Directly, replacing the function of the sensory cells in the cochlea
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Implantable Stimulator External Speech Processors
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How a Cochlear Implant Works
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Medicare and Hearing Care l Initial Hearing Evaluation covered with Physician Referral; with medical condition l Hearing evaluation is part of initial welcome wellness exam l Hearing Aids and related services are NOT a covered benefit
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Medicare and Hearing Care l Some managed plans may have hearing aid discounting agreements with participating providers l Cochlear Implants ARE a covered benefit for patients who meet criteria set by Medicare
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Dispensing Law Requires l Medical Clearance for Hearing Aid Use by Physician l Waiver of Medical Clearance Allowed for Users Over 18 years old l 30-day trial with hearing aid (Mandated in IL, Suggested by FDA)
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Do YOU Have a Hearing Problem? l Do people “mumble?” l Do you frequently say, “What?” or “Huh?” l Do you misunderstand numbers and names? l Do you like the TV/radio volume louder? l Do you have trouble hearing in noisy rooms?
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What’s should I do if I think I have an ear or hearing problem? l Investigate medical symptoms with an otologist (ear specialist) –Ringing, dizziness, ear pain –Changes in hearing or symptoms l See an audiologist for evaluation –Discuss ear protection for noise –Consider hearing aids, if appropriate
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A Parting Thought… l Hearing help may be less conspicuous than your hearing loss
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