|Document ID (ISN)||65598|
|ISSN - Serial title
||Journal of Otolaryngology of Japan
|Convention or series no.
||Ohgaki T., Nigauri T., Okubo J., Komatsuzaki A.
||Exostosis of the external auditory canal and sensorineural hearing loss in professional divers
||Shokugyō daiba ni mirareta ji shikkan-gaiji dō gai kotsushu to kan'on'sei nanchō ni tsuite [in Japanese]|
||20 Sep. 1992, Vol.95, No.9, p.1323-1331. Illus. 20 ref.
||Audiometry and endoscopic examination of the external auditory canal were performed on the 31 professional divers of a fishing cooperative, who were frequently exposed to dysbaric conditions. Over 40% of the subjects had exostosis (projections of bony tissue in the canal). Over 70% had sensorineural hearing loss, even when audiometric data were corrected for aging. Hearing loss increased with the number of years spent in diving. Few of the subjects had experienced inner ear barotrauma on descent. It is proposed that the frequent small changes of pressure occurring in the outer ear are transmitted to the middle ear and perilymph, which eventually damages the inner ear.
||hyperbaric pressure; Japan; long-term exposure; exostosis; hearing loss; diving
||audiometric tests; fishing
||D - Periodical articles
|Country / State or Province||Japan|
||Noise, hearing and vibration
|Broad subject area(s)
||Diseases of the musculoskeletal system
Diseases of the ear and hearing damage