Socioacusis is a professional hearing loss. It is a perceptual cochlear hearing loss that most often arises in connection with a long term stay in a noisy work environment. There is damage to the hair cells of the inner ear and higher levels of the auditory pathway.
Epidemiology[edit | edit source]
Workers at airports, train stations, truck drivers, blacksmiths, workers in industry who do not use hearing protection devices, etc. are most often affected.
Factors Affecting Damage[edit | edit source]
- Noise intensity – adverse effect from 80 dB;
- time – the worst are repeated explosions, bangs, etc. (defensive reflexes of the stapedius muscle and the tensor tympani muscle are not sufficient to adapt);
- frequency composition of noise – medium and high noise components are worse;
- total noise exposure time.
Clinical signs[edit | edit source]
Clinical symptoms usually appear gradually:
- feeling of ears falling;
- on the audiogram, we observe a decrease in the hearing threshold after exposure to noise, which then returns to normal;
- hearing threshold drop to a frequency of 4 kHz, returning to normal after rest;
- permanent hearing loss.
Treatment[edit | edit source]
In the case of professional hearing loss, the changes are irreversible. Only correction with a hearing aid is possible. Emphasis is placed on preventive measures – removing the source of noise, wearing protective equipment.
Links[edit | edit source]
Source[edit | edit source]
- BENEŠ, Jiří. Studijní materiály [online]. ©2007. [cit. 2009]. <http://jirben2.chytrak.cz/materialy/orl_jb.doc>.
References[edit | edit source]
- KLOZAR, Jan, et al. Speciální otorinolaryngologie. 1. edition. Galén, 2005. 224 pp. ISBN 80-7262-346-X.