| The effect of active sonar for the protection of moored and anchored warships on the human hearing. | |
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MedLine Citation:
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PMID: 19597738 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study wants to show the effects of active middle frequency sonar on a selected group of Italian Navy divers. Ten male divers with normal hearing were exposed to active sonar of the Italian Navy for more than 100 exposures, each of at least 1-h duration, in the course of 6 months. Before, at the end, and six months after the end of noise exposure, we performed pure-tone audiometry, Carhart test, Peyser test, thresholds of discomfort test (TDT), tympanometry, transient evoked otoacoustic emissions (TEOAE), distortion product otoacoustic emissions (DPOAE), and auditory brainstem response (ABR). At the end of the noise exposure, the audiological tests showed a worsening of the mean air and bone audiometric thresholds at the 2,000 (1/10), 4,000 (7/10), and 8,000 Hz (6/10); a fail status of the TEOAE and DPOAE, which were previously present, in all the divers; temporary threshold shift, at the Peyser test, in 9/10 divers; discomfort for pulse tone presented at the TDT test, in all the divers; no post exposure significant differences at the Carhart and ABR tests, in any of the divers. Six months after the end of noise exposure, all the divers presented a complete recovery of their audio-vestibular functions. Our results show the temporary negative effects of repeated and lasting exposure to active sonar (Hull MF) on the divers; the last control demonstrate the absence of permanent noise-induced hearing loss in divers exposed to active sonar. |
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Authors:
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Angelo Salami; Massimo Dellepiane; Mauro Barbierato; Pierluigi Freda; Barbara Crippa; Luca Guastini; Renzo Mora |
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Publication Detail:
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Type: Comparative Study; Journal Article Date: 2009-07-12 |
Journal Detail:
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Title: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery Volume: 267 ISSN: 1434-4726 ISO Abbreviation: Eur Arch Otorhinolaryngol Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2009-12-28 Completed Date: 2010-03-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9002937 Medline TA: Eur Arch Otorhinolaryngol Country: Germany |
Other Details:
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Languages: eng Pagination: 207-11 Citation Subset: IM |
Affiliation:
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ENT Department, University of Genoa, Via dei Mille 11/9, 16147, Genoa, Italy. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Impedance Tests Audiometry, Evoked Response / methods Auditory Threshold / physiology* Diving / physiology* Ear Protective Devices* Evoked Potentials, Auditory / physiology Follow-Up Studies Hearing / physiology* Hearing Loss, Noise-Induced / diagnosis, etiology, prevention & control* Humans Male Military Personnel* Noise, Occupational / adverse effects* Otoacoustic Emissions, Spontaneous / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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