Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and Presbycusis
<b>Introduction:</b> The most frequent causes of tinnitus associated with hearing loss are noise-induced hearing loss and presbycusis. The mechanism of tinnitus is not yet clear, although several hypotheses have been suggested. Therefore, we aimed to analyze characteristics of chronic ti...
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MDPI AG
2021-04-01
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author | Hee Jin Kang Dae Woong Kang Sung Su Kim Tong In Oh Sang Hoon Kim Seung Geun Yeo |
author_facet | Hee Jin Kang Dae Woong Kang Sung Su Kim Tong In Oh Sang Hoon Kim Seung Geun Yeo |
author_sort | Hee Jin Kang |
collection | DOAJ |
description | <b>Introduction:</b> The most frequent causes of tinnitus associated with hearing loss are noise-induced hearing loss and presbycusis. The mechanism of tinnitus is not yet clear, although several hypotheses have been suggested. Therefore, we aimed to analyze characteristics of chronic tinnitus between noise-induced hearing loss and presbycusis. <b>Materials and Methods:</b> This paper is a retrospective chart review and outpatient clinic-based study of 248 patients with chronic tinnitus from 2015 to 2020 with noise-induced or presbycusis. Pure tone audiometry (PTA), auditory brainstem response (ABR), distortion product otoacoustic emissions (DPOAE), transient evoked otoacoustic emissions (TEOAE), and tinnitograms were conducted. <b>Results:</b> PTA showed that hearing thresholds at all frequencies were higher in patients with noise-induced hearing loss than the presbycusis group. ABR tests showed that patients with presbycusis had longer wave I and III latencies (<i>p</i> < 0.05 each) than patients with noise-induced hearing loss. TEOAE tests showed lower values in patients with noise-induced hearing loss than presbycusis at 1.5, 2, 3, and 4 kHz (<i>p</i> < 0.05 each). DPOAE tests showed that response rates in both ears at 1.5, 2, and 3 kHz were significantly higher in patients with presbycusis than noise-induced hearing loss (<i>p</i> < 0.05 each). <b>Discussion:</b> This study showed that hearing thresholds were higher, the loudness of tinnitus was smaller, and the degree of damage to outer hair cells was lower in patients with presbycusis than with noise-induced hearing loss. Moreover, wave I and III latencies were more prolonged in patients with presbycusis despite their having lower hearing thresholds. These phenomena may reflect the effects of aging or degeneration of the central nervous system with age. Further studies are needed to evaluate the etiologies of tinnitus. |
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spelling | doaj.art-caace6b228b549e08e77514bfd9b64282023-11-21T16:13:56ZengMDPI AGJournal of Clinical Medicine2077-03832021-04-01108177910.3390/jcm10081779Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and PresbycusisHee Jin Kang0Dae Woong Kang1Sung Su Kim2Tong In Oh3Sang Hoon Kim4Seung Geun Yeo5Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, KoreaDepartment of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, KoreaMedical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Graduate School, Kyung Hee University, Seoul 02447, KoreaDepartment of Biomedical Engineering, College of Medicine, Kyung Hee University, Seoul 02447, KoreaDepartment of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, KoreaDepartment of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea<b>Introduction:</b> The most frequent causes of tinnitus associated with hearing loss are noise-induced hearing loss and presbycusis. The mechanism of tinnitus is not yet clear, although several hypotheses have been suggested. Therefore, we aimed to analyze characteristics of chronic tinnitus between noise-induced hearing loss and presbycusis. <b>Materials and Methods:</b> This paper is a retrospective chart review and outpatient clinic-based study of 248 patients with chronic tinnitus from 2015 to 2020 with noise-induced or presbycusis. Pure tone audiometry (PTA), auditory brainstem response (ABR), distortion product otoacoustic emissions (DPOAE), transient evoked otoacoustic emissions (TEOAE), and tinnitograms were conducted. <b>Results:</b> PTA showed that hearing thresholds at all frequencies were higher in patients with noise-induced hearing loss than the presbycusis group. ABR tests showed that patients with presbycusis had longer wave I and III latencies (<i>p</i> < 0.05 each) than patients with noise-induced hearing loss. TEOAE tests showed lower values in patients with noise-induced hearing loss than presbycusis at 1.5, 2, 3, and 4 kHz (<i>p</i> < 0.05 each). DPOAE tests showed that response rates in both ears at 1.5, 2, and 3 kHz were significantly higher in patients with presbycusis than noise-induced hearing loss (<i>p</i> < 0.05 each). <b>Discussion:</b> This study showed that hearing thresholds were higher, the loudness of tinnitus was smaller, and the degree of damage to outer hair cells was lower in patients with presbycusis than with noise-induced hearing loss. Moreover, wave I and III latencies were more prolonged in patients with presbycusis despite their having lower hearing thresholds. These phenomena may reflect the effects of aging or degeneration of the central nervous system with age. Further studies are needed to evaluate the etiologies of tinnitus.https://www.mdpi.com/2077-0383/10/8/1779tinnitusnoise-induced hearing losspresbycusisaudiology |
spellingShingle | Hee Jin Kang Dae Woong Kang Sung Su Kim Tong In Oh Sang Hoon Kim Seung Geun Yeo Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and Presbycusis Journal of Clinical Medicine tinnitus noise-induced hearing loss presbycusis audiology |
title | Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and Presbycusis |
title_full | Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and Presbycusis |
title_fullStr | Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and Presbycusis |
title_full_unstemmed | Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and Presbycusis |
title_short | Analysis of Chronic Tinnitus in Noise-Induced Hearing Loss and Presbycusis |
title_sort | analysis of chronic tinnitus in noise induced hearing loss and presbycusis |
topic | tinnitus noise-induced hearing loss presbycusis audiology |
url | https://www.mdpi.com/2077-0383/10/8/1779 |
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