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OTOACOUSTIC EMISSIONSOTOACOUSTIC EMISSIONS

Otoacoustic emission ditemukan Kemp (1978)Otoacoustic emission ditemukan Kemp (1978)

Definition: acoustic energy produced by theDefinition: acoustic energy produced by the

cochleacochlea

Standard set up: stimulus generator, signalStandard set up: stimulus generator, signal

receiverreceiver Outer hair cell electroOuter hair cell electro--motility.motility.

SEJARAH & FUNGSI OAESEJARAH & FUNGSI OAE

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Anatomy CochleaAnatomy Cochlea

Mekanisme CochleaMekanisme Cochlea

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SpeakerSpeakerMicrophoneMicrophone

Instrumentasi OAEInstrumentasi OAE

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JENIS OAEJENIS OAE

Cara kerja TEOAECara kerja TEOAE

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Cara kerja DPOAECara kerja DPOAE

Response from click stimulation

Fast component 9.4msec

Slow component

13.6msec

Feed back of Outer hair cells

Speaker

Microphone

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Click stimulation

Resonance

Slow Component

Fast component

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Differential diagnosis: as a part ofDifferential diagnosis: as a part of

audiologic batteryaudiologic battery

Serial monitoring: developing conditionsSerial monitoring: developing conditions

and treatment efficacyand treatment efficacy

Screening: newborn, occupational, school,Screening: newborn, occupational, school,

elderlyelderly

Clinical Applications of OAEClinical Applications of OAE

NoiseNoise--induced hearing lossinduced hearing loss

OtotoxicityOtotoxicity

Hereditary hearing lossHereditary hearing loss

Prediction of Hearing loss: Onset of noise,Prediction of Hearing loss: Onset of noise,

drug, aging damagedrug, aging damage

Provide reasonable estimate for clinicalProvide reasonable estimate for clinical

hearinghearing

Clinical Application of OAEClinical Application of OAE

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11. SKRINING PENDENGARAN. SKRINING PENDENGARAN

PADA BAYI,ANAK SEKOLAH,PEKERJAPADA BAYI,ANAK SEKOLAH,PEKERJA

INDUSTRIINDUSTRI

2. PEMERIKSAAN AUDIOLOGI ANAK2. PEMERIKSAAN AUDIOLOGI ANAK

3. MONITORING : OTOTOKSIK,MENIERE,NEUROMA3. MONITORING : OTOTOKSIK,MENIERE,NEUROMA

AKUSTIKAKUSTIK

4. KELAINAN RETROKOKLEA4. KELAINAN RETROKOKLEA

5. DIAGNOSTIK :BISING,PRESBIKUSIS,IDIOPATHIC5. DIAGNOSTIK :BISING,PRESBIKUSIS,IDIOPATHIC

HL, FAMILIAL HLHL, FAMILIAL HL

Menieres disease:Menieres disease:

a) hyperosmic challenge ( urea, glycerol )a) hyperosmic challenge ( urea, glycerol )

b) ability to detect fluctuationb) ability to detect fluctuation

Sudden hearing loss: two emission patternsSudden hearing loss: two emission patterns

Acoustic neurinoma:Acoustic neurinoma:

a) retrocochlear/ noncochlear subtypea) retrocochlear/ noncochlear subtype

b) cochlear subtypeb) cochlear subtypec) mixed pattern, low vs high frequenciesc) mixed pattern, low vs high frequencies

Screening of newborn hearing: prediction of futureScreening of newborn hearing: prediction of future

hearing statushearing status

Evoked OAE and AudiogramEvoked OAE and Audiogram

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HAL YANG HARUS DIPERHATIKANHAL YANG HARUS DIPERHATIKAN

OTOSKOPIOTOSKOPI

KEADAAN TELINGA TENGAHKEADAAN TELINGA TENGAH

PEMASANGAN PROBEPEMASANGAN PROBE

RUANGAN HARUS SEPIRUANGAN HARUS SEPI

INTERNAL NOISEINTERNAL NOISE

Hasil OAE SKRINING :Hasil OAE SKRINING :

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1

DPOAE GRAMDPOAE GRAM

DPOAE GRAMDPOAE GRAM

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1

TERIMA KASIHTERIMA KASIH

SEMOGA BERMANFATSEMOGA BERMANFAT