Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical Trial

Background. Several remedial modalities for the treatment of tinnitus have been proposed, but an effective standard treatment is still to be confirmed. In the present study, we aimed to evaluate the effect of low-level laser therapy on tinnitus accompanied by noise-induced hearing loss. Methods. Thi...

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Main Authors: Abolfazl Mollasadeghi, Seyyed Jalil Mirmohammadi, Amir Houshang Mehrparvar, Mohammad Hossein Davari, Pedram Shokouh, Mehrdad Mostaghaci, Mohammad Hossein Baradaranfar, Maryam Bahaloo
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2013/596076
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author Abolfazl Mollasadeghi
Seyyed Jalil Mirmohammadi
Amir Houshang Mehrparvar
Mohammad Hossein Davari
Pedram Shokouh
Mehrdad Mostaghaci
Mohammad Hossein Baradaranfar
Maryam Bahaloo
author_facet Abolfazl Mollasadeghi
Seyyed Jalil Mirmohammadi
Amir Houshang Mehrparvar
Mohammad Hossein Davari
Pedram Shokouh
Mehrdad Mostaghaci
Mohammad Hossein Baradaranfar
Maryam Bahaloo
author_sort Abolfazl Mollasadeghi
collection DOAJ
description Background. Several remedial modalities for the treatment of tinnitus have been proposed, but an effective standard treatment is still to be confirmed. In the present study, we aimed to evaluate the effect of low-level laser therapy on tinnitus accompanied by noise-induced hearing loss. Methods. This was a double-blind randomized clinical trial on subjects suffering from tinnitus accompanied by noise-induced hearing loss. The study intervention was 20 sessions of low-level laser therapy every other day, 20 minutes each session. Tinnitus was assessed by three methods (visual analog scale, tinnitus handicap inventory, and tinnitus loudness) at baseline, immediately and 3 months after the intervention. Results. All subjects were male workers with age range of 30–51 years. The mean tinnitus duration was 1.85±0.78 years. All three measurement methods have shown improved values after laser therapy compared with the placebo both immediately and 3 months after treatment. Laser therapy revealed a U-shaped efficacy throughout the course of follow-up. Nonresponse rate of the intervention was 57% and 70% in the two assessment time points, respectively. Conclusion. This study found low-level laser therapy to be effective in alleviating tinnitus in patients with noise-induced hearing loss, although this effect has faded after 3 months of follow-up. This trial is registered with the Australian New Zealand clinical trials registry with identifier ACTRN12612000455864).
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spelling doaj-art-e60aec79f30f47d1af4e88a0470c618c2025-08-20T02:21:02ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/596076596076Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical TrialAbolfazl Mollasadeghi0Seyyed Jalil Mirmohammadi1Amir Houshang Mehrparvar2Mohammad Hossein Davari3Pedram Shokouh4Mehrdad Mostaghaci5Mohammad Hossein Baradaranfar6Maryam Bahaloo7Department of Occupational Medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, P.O. Box 89138-14389, Yazd, IranDepartment of Occupational Medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, P.O. Box 89138-14389, Yazd, IranDepartment of Occupational Medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, P.O. Box 89138-14389, Yazd, IranDepartment of Occupational Medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, P.O. Box 89138-14389, Yazd, IranCardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, P.O. Box 81465-1148, Isfahan, IranDepartment of Occupational Medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, P.O. Box 89138-14389, Yazd, IranDepartment of Otolaryngology and Head and Neck Surgery, School of Medicine, Yazd University of Medical Sciences, P.O. Box 89138-14389, Yazd, IranIndustrial Diseases Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, P.O. Box 89138-14389, Yazd, IranBackground. Several remedial modalities for the treatment of tinnitus have been proposed, but an effective standard treatment is still to be confirmed. In the present study, we aimed to evaluate the effect of low-level laser therapy on tinnitus accompanied by noise-induced hearing loss. Methods. This was a double-blind randomized clinical trial on subjects suffering from tinnitus accompanied by noise-induced hearing loss. The study intervention was 20 sessions of low-level laser therapy every other day, 20 minutes each session. Tinnitus was assessed by three methods (visual analog scale, tinnitus handicap inventory, and tinnitus loudness) at baseline, immediately and 3 months after the intervention. Results. All subjects were male workers with age range of 30–51 years. The mean tinnitus duration was 1.85±0.78 years. All three measurement methods have shown improved values after laser therapy compared with the placebo both immediately and 3 months after treatment. Laser therapy revealed a U-shaped efficacy throughout the course of follow-up. Nonresponse rate of the intervention was 57% and 70% in the two assessment time points, respectively. Conclusion. This study found low-level laser therapy to be effective in alleviating tinnitus in patients with noise-induced hearing loss, although this effect has faded after 3 months of follow-up. This trial is registered with the Australian New Zealand clinical trials registry with identifier ACTRN12612000455864).http://dx.doi.org/10.1155/2013/596076
spellingShingle Abolfazl Mollasadeghi
Seyyed Jalil Mirmohammadi
Amir Houshang Mehrparvar
Mohammad Hossein Davari
Pedram Shokouh
Mehrdad Mostaghaci
Mohammad Hossein Baradaranfar
Maryam Bahaloo
Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical Trial
The Scientific World Journal
title Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical Trial
title_full Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical Trial
title_fullStr Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical Trial
title_full_unstemmed Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical Trial
title_short Efficacy of Low-Level Laser Therapy in the Management of Tinnitus due to Noise-Induced Hearing Loss: A Double-Blind Randomized Clinical Trial
title_sort efficacy of low level laser therapy in the management of tinnitus due to noise induced hearing loss a double blind randomized clinical trial
url http://dx.doi.org/10.1155/2013/596076
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