Hearing
- Conductive hearing loss
- Sensorineuronal
- cochlear
- retrocochlear
- Central (upward nc.cochlearis)
- acouctic agnosia, word deafness
- developmental dysfasia (SLI)
- Sensorineuronal (cochlear)
2/3 congenital
syndromatic (Alport AD, Usher AR)
non-syndromatic (Cx 26…)
teratogen.infl. (4.-12. w.)
1/3 acquired
sudden deafness, infections, noise
presbyacusis, ototoxicity, Meniér
Examination of hearing
Behavioral: speech, whisper, tuning forks
tone audiometry, speech audiometry
Objective: impedance measurement
OAE´s (Otoacoustic Emissions)
ABR (Auditory Brainstem Response), SSEP (Steady-State auditory Evoked Potential)
Hearing instruments
BTE (Behind-The-Ear) + earmould
ITE (In-The-Ear)
BW (Body-Worn)
microphone,receiver,amplifier,chips,
Open ear hearing aids, BAHA, middle-ear implants
Cochlear implants
Brainstem implants
