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:: Volume 17, Issue 2 (19 2009) ::
aud 2009, 17(2): 9-15 Back to browse issues page
Comparison of auditory brainstem response in noise induced tinnitus and non-tinnitus control subjects
Ghassem Mohammadkhani * 1, Masumeh Roozbahani2 , Elahe Zoghi3 , Jamileh Fatahi1 , Soghrat Faghihzadeh4
1- Department of Audiology, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran
2- Department of Audiology, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, I
3- M.Sc. in Audiology, Faculty of Rehabilitation, Tehran University of Medical Sciences, Iran
4- Department of Biostatistics, Tarbiat Modarres University, Tehran, Iran
Abstract:   (9987 Views)

Background and Aim: Tinnitus is an unpleasant sound which can cause some behavioral disorders. According to evidence the origin of tinnitus is not only in peripheral but also in central auditory system. So evaluation of central auditory system function is necessary. In this study Auditory brainstem responses (ABR) were compared in noise induced tinnitus and non-tinnitus control subjects.
Materials and Methods: This cross-sectional, descriptive and analytic study is conducted in 60 cases in two groups including of 30 noise induced tinnitus and 30 non-tinnitus control subjects. ABRs were recorded ipsilateraly and contralateraly and their latencies and amplitudes were analyzed.
Results: Mean interpeak latencies of III-V (p= 0.022), I-V (p=0.033) in ipsilatral electrode array and mean absolute latencies of IV (p=0.015) and V (p=0.048) in contralatral electrode array were significantly increased in noise induced tinnitus group relative to control group.
Conclusion: It can be concluded from that there are some decrease in neural transmission time in brainstem and there are some sign of involvement of medial nuclei in olivery complex in addition to lateral lemniscus.

Keywords: noise induced tinnitus, auditory brainstem responses, latency, amplitude
Full-Text [PDF 133 kb]   (3549 Downloads)    
Type of Study: Research |
Received: 2008/09/18 | Accepted: 2009/01/17 | Published: 2013/10/12
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 17, Issue 2 (19 2009) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
Creative Commons Attribution-NonCommercial 3.0

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