Exostosis of the external auditory canal and sensorineural hearing loss in professional divers
Audiometric survey and endoscopic study of the external auditory canal were performed on a group of 31 professional divers, all of whom had experienced frequent exposure to dysbaric conditions. The results are as follows. 1) Over 40% had exostosis of the external auditory canal. There was no relatio...
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| Veröffentlicht in: | Nippon Jibi Inkoka Gakkai Kaiho 1992, Vol.95 (9), p.1323-1331,1477 |
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| container_end_page | 1331,1477 |
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| container_issue | 9 |
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| container_title | Nippon Jibi Inkoka Gakkai Kaiho |
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| creator | Ohgaki, T Nigauri, T Okubo, J Komatsuzaki, A |
| description | Audiometric survey and endoscopic study of the external auditory canal were performed on a group of 31 professional divers, all of whom had experienced frequent exposure to dysbaric conditions. The results are as follows. 1) Over 40% had exostosis of the external auditory canal. There was no relationship between the incidence of the exostosis and the length of their occupational career as a diver. Many of the divers had hearing loss whether they had exostosis or not. 2) Over 70% had sensorineural hearing loss, taking into account hearing loss due to aging. Most had no experience of inner ear barotrauma on descent, causing sudden a shift in hearing threshold. Deafness was related to the length of their occupational career as a diver. In conclusion, we speculate that repetitive small changes in barometric pressure on the outer ear influences the pressure on the middle ear and further on that of the perilymph, finally damaging the inner ear auditory system. |
| doi_str_mv | 10.3950/jibiinkoka.95.1323 |
| format | Article |
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The results are as follows. 1) Over 40% had exostosis of the external auditory canal. There was no relationship between the incidence of the exostosis and the length of their occupational career as a diver. Many of the divers had hearing loss whether they had exostosis or not. 2) Over 70% had sensorineural hearing loss, taking into account hearing loss due to aging. Most had no experience of inner ear barotrauma on descent, causing sudden a shift in hearing threshold. Deafness was related to the length of their occupational career as a diver. In conclusion, we speculate that repetitive small changes in barometric pressure on the outer ear influences the pressure on the middle ear and further on that of the perilymph, finally damaging the inner ear auditory system.</description><identifier>ISSN: 0030-6622</identifier><identifier>EISSN: 1883-0854</identifier><identifier>DOI: 10.3950/jibiinkoka.95.1323</identifier><identifier>PMID: 1403319</identifier><language>eng ; jpn</language><publisher>Japan</publisher><subject>Adult ; Diving ; Ear Canal ; Exostoses - epidemiology ; Hearing Loss, Sensorineural - epidemiology ; Humans ; Incidence ; Japan - epidemiology ; Male ; Middle Aged ; Occupational Diseases - epidemiology</subject><ispartof>Nippon Jibi Inkoka Gakkai Kaiho, 1992, Vol.95 (9), p.1323-1331,1477</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3823-d3128cc8a547d7bbf31f65c3a85a3f2a9ed8e9f724a321b7bb492195b22391b13</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/1403319$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ohgaki, T</creatorcontrib><creatorcontrib>Nigauri, T</creatorcontrib><creatorcontrib>Okubo, J</creatorcontrib><creatorcontrib>Komatsuzaki, A</creatorcontrib><title>Exostosis of the external auditory canal and sensorineural hearing loss in professional divers</title><title>Nippon Jibi Inkoka Gakkai Kaiho</title><addtitle>Nihon Jibiinkoka Gakkai Kaiho</addtitle><description>Audiometric survey and endoscopic study of the external auditory canal were performed on a group of 31 professional divers, all of whom had experienced frequent exposure to dysbaric conditions. The results are as follows. 1) Over 40% had exostosis of the external auditory canal. There was no relationship between the incidence of the exostosis and the length of their occupational career as a diver. Many of the divers had hearing loss whether they had exostosis or not. 2) Over 70% had sensorineural hearing loss, taking into account hearing loss due to aging. Most had no experience of inner ear barotrauma on descent, causing sudden a shift in hearing threshold. Deafness was related to the length of their occupational career as a diver. In conclusion, we speculate that repetitive small changes in barometric pressure on the outer ear influences the pressure on the middle ear and further on that of the perilymph, finally damaging the inner ear auditory system.</description><subject>Adult</subject><subject>Diving</subject><subject>Ear Canal</subject><subject>Exostoses - epidemiology</subject><subject>Hearing Loss, Sensorineural - epidemiology</subject><subject>Humans</subject><subject>Incidence</subject><subject>Japan - epidemiology</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Occupational Diseases - epidemiology</subject><issn>0030-6622</issn><issn>1883-0854</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkN1KAzEQhYMotdS-gCDkBbYmmU2bXEqpPyB4o7cuyWZiY9tNSbbSvr2pFXo1Z4ZzZoaPkFvOJqAlu_8ONoRuFVdmouWEg4ALMuRKQcWUrC_JkDFg1XQqxDUZ5xwsY0zXDAQbkAEvArgeks_FPuY-5pBp9LRfIsV9j6kza2p2LvQxHWhr_trO0Yxdjil0uEtlskRT9Bddx5xp6Og2RY_lUjzaXfjBlG_IlTfrjOP_OiIfj4v3-XP1-vb0Mn94rVpQAioHXKi2VUbWMzez1gP3U9mCUdKAF0ajU6j9TNQGBLfFUWvBtbRCgOaWw4iI0942lWcS-mabwsakQ8NZc8TVnHE1WjZHXCV0dwptd3aD7hw5wYFfeFZqow</recordid><startdate>1992</startdate><enddate>1992</enddate><creator>Ohgaki, T</creator><creator>Nigauri, T</creator><creator>Okubo, J</creator><creator>Komatsuzaki, A</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>1992</creationdate><title>Exostosis of the external auditory canal and sensorineural hearing loss in professional divers</title><author>Ohgaki, T ; Nigauri, T ; Okubo, J ; Komatsuzaki, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3823-d3128cc8a547d7bbf31f65c3a85a3f2a9ed8e9f724a321b7bb492195b22391b13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>1992</creationdate><topic>Adult</topic><topic>Diving</topic><topic>Ear Canal</topic><topic>Exostoses - epidemiology</topic><topic>Hearing Loss, Sensorineural - epidemiology</topic><topic>Humans</topic><topic>Incidence</topic><topic>Japan - epidemiology</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Occupational Diseases - epidemiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ohgaki, T</creatorcontrib><creatorcontrib>Nigauri, T</creatorcontrib><creatorcontrib>Okubo, J</creatorcontrib><creatorcontrib>Komatsuzaki, A</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Nippon Jibi Inkoka Gakkai Kaiho</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ohgaki, T</au><au>Nigauri, T</au><au>Okubo, J</au><au>Komatsuzaki, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Exostosis of the external auditory canal and sensorineural hearing loss in professional divers</atitle><jtitle>Nippon Jibi Inkoka Gakkai Kaiho</jtitle><addtitle>Nihon Jibiinkoka Gakkai Kaiho</addtitle><date>1992</date><risdate>1992</risdate><volume>95</volume><issue>9</issue><spage>1323</spage><epage>1331,1477</epage><pages>1323-1331,1477</pages><issn>0030-6622</issn><eissn>1883-0854</eissn><abstract>Audiometric survey and endoscopic study of the external auditory canal were performed on a group of 31 professional divers, all of whom had experienced frequent exposure to dysbaric conditions. 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| fulltext | fulltext |
| identifier | ISSN: 0030-6622 |
| ispartof | Nippon Jibi Inkoka Gakkai Kaiho, 1992, Vol.95 (9), p.1323-1331,1477 |
| issn | 0030-6622 1883-0854 |
| language | eng ; jpn |
| recordid | cdi_pubmed_primary_1403319 |
| source | J-STAGE Free; MEDLINE; EZB-FREE-00999 freely available EZB journals |
| subjects | Adult Diving Ear Canal Exostoses - epidemiology Hearing Loss, Sensorineural - epidemiology Humans Incidence Japan - epidemiology Male Middle Aged Occupational Diseases - epidemiology |
| title | Exostosis of the external auditory canal and sensorineural hearing loss in professional divers |
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