Objectives of middle-ear research (20 of 24)

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1. Motivation

2. Research objectives

3.1 Adults

3.2 Newborns

3.2 Newborns (cont'd)

4.1 Audiogram

4.2 Auditory brainstem response

4.2 Auditory brainstem response (cont'd)

4.3 Otoacoustic emissions

4.3 Otoacoustic emissions (cont'd)

4.3.1 Limitations

4.4 Acoustical input admittance

4.4 Acoustical input admittance (cont'd)

4.5 Tympanometry

4.5 Tympanometry (cont'd)

5.1 Passive prostheses

5.1 Passive prostheses (cont'd)

5.1 Passive prostheses (cont'd)

20 of 24

5.2 Passive external devices

5.3 Hearing aids and implants

6. Inner ear

7. Teaching

5.1 Passive prostheses (cont'd)

but

Results are variable
- surprisingly good performance of some ears after surgery
- surprisingly poor performance of others
Closure of air-bone gap
- within 20 dB in 70-80% of cases is considered good

Little systematic analysis of mechanical performance

E.g.,
Slater PW, Rizer FM, Schuring AG & Lippy WH (1997): Practical use of total and partial ossicular replacement prostheses in ossiculoplasty. Laryngoscope 107: 1193-1198
Stupp CH, Dalchow C, Grun D, Stupp HF & Wustrow J (1999): Titan-Prothesen im Mittelohr. 3-Jahres-Erfahrungsbericht. Laryngo- Rhino- Otologie 78(6): 299-303

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BMDE-501 Modelling middle-ear mechanics

Last modified: 2024-10-20 12:37:59

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