Behavior of 8000 Hz audiometric threshold in chronic acoustic trauma
The paper analyzes the 8 KHz threshold in subjects with noise-induced hearing loss. The study group consisted of 315 subjects occupationally exposed to noise and suffering from acoustic trauma, which was considered as a mean threshold of more than 25 dB at 2, 3 and 4 KHz. The mean shape of audiogram...
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Published in | Medicina del lavoro Vol. 85; no. 4; p. 314 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Italian |
Published |
Italy
01.07.1994
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Subjects | |
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Abstract | The paper analyzes the 8 KHz threshold in subjects with noise-induced hearing loss. The study group consisted of 315 subjects occupationally exposed to noise and suffering from acoustic trauma, which was considered as a mean threshold of more than 25 dB at 2, 3 and 4 KHz. The mean shape of audiograms was characterized by a neurosensory deficit which was more elevated at 4 and 6 KHz whereas the threshold at 8 KHz was better. However, this pattern was found in 60% of the cases whereas in the remaining 40% the threshold at 8 KHz was worse. Subjects with the most impaired audiometric threshold at 8 KHz were mainly older, although cases were found in a low percentage of younger subjects. The results demonstrate that in individual cases it is impossible, on the basis of the shape of the audiogram, to establish whether a hearing loss is due to noise or age. |
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AbstractList | The paper analyzes the 8 KHz threshold in subjects with noise-induced hearing loss. The study group consisted of 315 subjects occupationally exposed to noise and suffering from acoustic trauma, which was considered as a mean threshold of more than 25 dB at 2, 3 and 4 KHz. The mean shape of audiograms was characterized by a neurosensory deficit which was more elevated at 4 and 6 KHz whereas the threshold at 8 KHz was better. However, this pattern was found in 60% of the cases whereas in the remaining 40% the threshold at 8 KHz was worse. Subjects with the most impaired audiometric threshold at 8 KHz were mainly older, although cases were found in a low percentage of younger subjects. The results demonstrate that in individual cases it is impossible, on the basis of the shape of the audiogram, to establish whether a hearing loss is due to noise or age. |
Author | Milan, F Beatrice, F Ferreri, A Romano, C Bosia, S Albera, R |
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BackLink | https://www.ncbi.nlm.nih.gov/pubmed/7808347$$D View this record in MEDLINE/PubMed |
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SubjectTerms | Adolescent Adult Age Factors Audiometry Auditory Threshold Hearing Loss, Noise-Induced - diagnosis Hearing Loss, Noise-Induced - etiology Humans Middle Aged Noise, Occupational - adverse effects |
Title | Behavior of 8000 Hz audiometric threshold in chronic acoustic trauma |
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