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Reisinger L, Demarchi G, Weisz N. Eavesdropping on Tinnitus Using MEG: Lessons Learned and Future Perspectives. J Assoc Res Otolaryngol 2023; 24:531-547. [PMID: 38015287 PMCID: PMC10752863 DOI: 10.1007/s10162-023-00916-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/06/2023] [Indexed: 11/29/2023] Open
Abstract
Tinnitus has been widely investigated in order to draw conclusions about the underlying causes and altered neural activity in various brain regions. Existing studies have based their work on different tinnitus frameworks, ranging from a more local perspective on the auditory cortex to the inclusion of broader networks and various approaches towards tinnitus perception and distress. Magnetoencephalography (MEG) provides a powerful tool for efficiently investigating tinnitus and aberrant neural activity both spatially and temporally. However, results are inconclusive, and studies are rarely mapped to theoretical frameworks. The purpose of this review was to firstly introduce MEG to interested researchers and secondly provide a synopsis of the current state. We divided recent tinnitus research in MEG into study designs using resting state measurements and studies implementing tone stimulation paradigms. The studies were categorized based on their theoretical foundation, and we outlined shortcomings as well as inconsistencies within the different approaches. Finally, we provided future perspectives on how to benefit more efficiently from the enormous potential of MEG. We suggested novel approaches from a theoretical, conceptual, and methodological point of view to allow future research to obtain a more comprehensive understanding of tinnitus and its underlying processes.
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Affiliation(s)
- Lisa Reisinger
- Centre for Cognitive Neuroscience and Department of Psychology, Paris-Lodron-University Salzburg, Salzburg, Austria.
| | - Gianpaolo Demarchi
- Centre for Cognitive Neuroscience and Department of Psychology, Paris-Lodron-University Salzburg, Salzburg, Austria
| | - Nathan Weisz
- Centre for Cognitive Neuroscience and Department of Psychology, Paris-Lodron-University Salzburg, Salzburg, Austria
- Neuroscience Institute, Christian Doppler University Hospital, Paracelsus Medical University, Salzburg, Austria
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Marder KG, Cho J, Chincanchan R, Wilson AC, Corlier J, Krantz DE, Ginder ND, Lee JC, Wilke SA, Tadayonnejad R, Levitt J, Ishiyama A, Leuchter MK, Leuchter AF. Sequential Prefrontal and Temporoparietal Repetitive Transcranial Magnetic Stimulation (rTMS) for Treatment of Tinnitus With and Without Comorbid Depression: A Case Series and Systematic Review. Front Neurol 2022; 13:831832. [PMID: 35665054 PMCID: PMC9160187 DOI: 10.3389/fneur.2022.831832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/21/2022] [Indexed: 12/04/2022] Open
Abstract
Background Tinnitus distress is related to both the loudness and intrusiveness of the tinnitus percept. Treatment approaches targeting both attentional/limbic and auditory systems may better alleviate tinnitus distress than approaches targeting the auditory system alone. Materials and Methods Ten subjects with chronic tinnitus received sequential rTMS treatment involving: 1) excitatory stimulation administered to the left dorsolateral prefrontal cortex (DLPFC) or inhibitory stimulation administered to the right DLPFC, followed by 2) inhibitory stimulation administered to primary auditory cortex (Heschel's gyrus or HG). A systematic literature review was performed to evaluate the existing literature on sequential repetitive Transcranial Magnetic Stimulation (rTMS) treatment approaches for tinnitus. Results of the case series are interpreted in the context of tinnitus neurobiology and the extant literature. Results Subjects experienced a significant decrease (average 21.7%) in symptoms on the Tinnitus Functional Index (TFI). Those with tinnitus alone experienced a greater mean symptom reduction than those with comorbid MDD (27.7 vs. 17.0%, respectively). Adverse effects were transient and minor. Literature review confirmed that sequential approaches had some advantages compared to single site rTMS; in general, the addition of 1 Hz treatment at DLPFC was superior to single site rTMS in the short term (1-12 weeks), while the addition of 20 Hz treatment at DLPFC appeared superior in the long term (90-180 days). Conclusions Sequential rTMS approaches for the treatment of tinnitus-particularly those administering low-frequency treatment at left DLPFC-merit further investigation.
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Affiliation(s)
- Katharine G. Marder
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Janice Cho
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Ruth Chincanchan
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
| | - Andrew C. Wilson
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Juliana Corlier
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - David E. Krantz
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Nathaniel D. Ginder
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Jonathan C. Lee
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Scott A. Wilke
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Reza Tadayonnejad
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
- Division of Humanities and Social Sciences, California Institute of Technology, Pasadena, CA, USA
| | - Jennifer Levitt
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Akira Ishiyama
- Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Michael K. Leuchter
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Andrew F. Leuchter
- TMS Clinical and Research Service, Neuromodulation Division, Semel Institute for Neuroscience and Human Behavior at UCLA, Los Angeles, CA, United States
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
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Voytenkov VB, Ekusheva EV, Bedova MA, Komazov AA. [Transcranial magnetic stimulation for tinnitus treatment]. VOPROSY KURORTOLOGII, FIZIOTERAPII, I LECHEBNOĬ FIZICHESKOĬ KULTURY 2021; 98:74-79. [PMID: 34719911 DOI: 10.17116/kurort20219805174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
High prevalence of tinnitus, its negative influence on the quality of life and psychoemotional status of patients support need and extreme urgency of further research of various treatment methods. Rhythmic transcranial magnetic stimulation (rTMS) is an effective method of therapy in patients with chronic tinnitus. The optimal protocol for rhythmic stimulation is low-frequency (1 Hz) rTMS with low-intensity stimuli (below 110% of the motor threshold) with a limited number of stimuli per series. There is evidence that high-frequency rTMS in the area of relatively thin temporal bones can lead to excessive stimulation of the neural structures of the auditory cortex, which is undesirable considering the pathogenesis of this condition. The use of navigation technology in rTMS has no advantage in chronic tinnitus therapy, whereas the combined use of rTMS and transcranial electrical brain stimulation to increase the treatment efficacy is under active study. Considering the attributable favorable clinical safety profile of rTMS, as well as its known positive effects on anxiety and depression that are often seen in patients with tinnitus, we can recommend more widespread use of this method in real-world settings.
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Affiliation(s)
- V B Voytenkov
- Research and Clinical Center for Pediatric Infectious Diseases of the Federal Medical and Biological Agency of Russia, St. Petersburg, Russia.,Academy of Postgraduate Education under the Federal State Budgetary Unit «Federal Scientific and Clinical Center for Specialized Medical Assistance and Medical Technologies of the Federal Medical Biological Agency», Moscow, Russia.,Federal Scientific Center of Rehabilitation of the Disabled named after G.A. Albrecht, St. Petersburg, Russia
| | - E V Ekusheva
- Academy of Postgraduate Education under the Federal State Budgetary Unit «Federal Scientific and Clinical Center for Specialized Medical Assistance and Medical Technologies of the Federal Medical Biological Agency», Moscow, Russia.,Belgorod State University, Belgorod, Russia
| | - M A Bedova
- Research and Clinical Center for Pediatric Infectious Diseases of the Federal Medical and Biological Agency of Russia, St. Petersburg, Russia
| | - A A Komazov
- Academy of Postgraduate Education under the Federal State Budgetary Unit «Federal Scientific and Clinical Center for Specialized Medical Assistance and Medical Technologies of the Federal Medical Biological Agency», Moscow, Russia.,Belgorod State University, Belgorod, Russia
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Kikidis D, Vassou E, Schlee W, Iliadou E, Markatos N, Triantafyllou A, Langguth B. Methodological Aspects of Randomized Controlled Trials for Tinnitus: A Systematic Review and How a Decision Support System Could Overcome Barriers. J Clin Med 2021; 10:1737. [PMID: 33923778 PMCID: PMC8074073 DOI: 10.3390/jcm10081737] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/08/2021] [Accepted: 04/08/2021] [Indexed: 12/05/2022] Open
Abstract
Although a wide range of tinnitus management interventions is currently under research and a variety of therapeutic interventions have already been applied in clinical practice, no optimal and universal tinnitus treatment has been reached yet. This fact is to some extent a consequence of the high heterogeneity of the methodologies used in tinnitus related clinical studies. In this manuscript, we have identified, summarized, and critically appraised tinnitus-related randomized clinical trials since 2010, aiming at systematically mapping the research conducted in this area. The results of our analysis of the 73 included randomized clinical trials provide important insight on the identification of limitations of previous works, methodological pitfalls or gaps in current knowledge, a prerequisite for the adequate interpretation of current literature and execution of future studies.
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Affiliation(s)
- Dimitrios Kikidis
- First Department of Otorhinolaryngology, Head and Neck Surgery, Hippokration General Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece; (E.V.); (E.I.); (N.M.); (A.T.)
| | - Evgenia Vassou
- First Department of Otorhinolaryngology, Head and Neck Surgery, Hippokration General Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece; (E.V.); (E.I.); (N.M.); (A.T.)
| | - Winfried Schlee
- Department of Psychiatry and Psychotherapy, Universität Regensburg, 93053 Regensburg, Germany; (W.S.); (B.L.)
| | - Eleftheria Iliadou
- First Department of Otorhinolaryngology, Head and Neck Surgery, Hippokration General Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece; (E.V.); (E.I.); (N.M.); (A.T.)
| | - Nikolaos Markatos
- First Department of Otorhinolaryngology, Head and Neck Surgery, Hippokration General Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece; (E.V.); (E.I.); (N.M.); (A.T.)
| | - Aikaterini Triantafyllou
- First Department of Otorhinolaryngology, Head and Neck Surgery, Hippokration General Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece; (E.V.); (E.I.); (N.M.); (A.T.)
| | - Berthold Langguth
- Department of Psychiatry and Psychotherapy, Universität Regensburg, 93053 Regensburg, Germany; (W.S.); (B.L.)
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Yin L, Chen X, Lu X, An Y, Zhang T, Yan J. An updated meta-analysis: repetitive transcranial magnetic stimulation for treating tinnitus. J Int Med Res 2021; 49:300060521999549. [PMID: 33729855 PMCID: PMC7975580 DOI: 10.1177/0300060521999549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objective To undertake an updated meta-analysis to obtain more evidence from randomized
controlled trials (RCTs) to assess the effect of repetitive transcranial
magnetic stimulation (rTMS) for the treatment of tinnitus. Methods PubMed®, Embase®, Web of Science, Cochrane Database of Systematic Reviews,
CBM, CNKI and Wanfang were searched for RCTs from inception up to March
2020. Studies meeting the eligibility criteria were included in the
meta-analysis. The mean difference was calculated and the effect size was
evaluated using a Z test. Results The analysis included 12 randomized sham-controlled clinical trials with a
total of 717 participants. Active rTMS was superior to sham rTMS in terms of
the short-term and long-term effects (6 months) on the tinnitus handicap
inventory scores, but an immediate effect was not significant. There was no
significant immediate effect on the tinnitus questionnaire (TQ) and Beck
depression inventory (BDI) scores. Conclusions This meta-analysis demonstrated that rTMS improved tinnitus-related symptoms,
but the TQ and BDI scores demonstrated little immediate benefit. Future
research should be undertaken on large samples in multi-centre settings with
longer follow-up durations.
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Affiliation(s)
- Lu Yin
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiao Chen
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xingang Lu
- Department of Traditional Chinese Medicine, Shanghai Key Laboratory of Clinical Geriatric Medicine, HuaDong Hospital, FuDan University, Shanghai, China
| | - Yun An
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tao Zhang
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Juntao Yan
- Department of Tuina, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Lefebvre-Demers M, Doyon N, Fecteau S. Non-invasive neuromodulation for tinnitus: A meta-analysis and modeling studies. Brain Stimul 2020; 14:113-128. [PMID: 33276156 DOI: 10.1016/j.brs.2020.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/07/2020] [Accepted: 11/15/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Patients with tinnitus often have poor quality of life, as well as severe anxiety and depression. New approaches to treat tinnitus are needed. OBJECTIVE Evaluate the effects of non-invasive neuromodulation on tinnitus through a metaanalysis and modeling study. The main hypothesis was that real as compared to sham neuromodulation that decreases tinnitus will modulate regions in line with the neurobiological models of tinnitus. METHODS AND RESULTS The systematic review, conducted from Pubmed, Cochrane and PsycINFO databases, showed that active as compared to sham repetitive transcranial magnetic stimulation (rTMS) reduced tinnitus, but active and sham transcranial direct current stimulation did not significantly differ. Further, rTMS over the auditory cortex was the most effective protocol. The modeling results indicate that this rTMS protocol elicited the strongest electric fields in the insula. Also, rTMS was particularly beneficial in women. Finally, the placebo effects were highly variable, highlighting the importance of conducting sham-controlled trials. CONCLUSION In sum, neuromodulation protocols that target the auditory cortex and the insula may hold clinical potential to treat tinnitus.
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Affiliation(s)
- Mathilde Lefebvre-Demers
- CERVO Brain Research Centre, Institut Universitaire En Santé Mentale de Québec, Centre Intégré Universitaire De Santé Et De Services Sociaux De La Capitale-Nationale, Canada; Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, Canada
| | - Nicolas Doyon
- CERVO Brain Research Centre, Institut Universitaire En Santé Mentale de Québec, Centre Intégré Universitaire De Santé Et De Services Sociaux De La Capitale-Nationale, Canada; Faculty of Science and Engineering, Université Laval, Canada
| | - Shirley Fecteau
- CERVO Brain Research Centre, Institut Universitaire En Santé Mentale de Québec, Centre Intégré Universitaire De Santé Et De Services Sociaux De La Capitale-Nationale, Canada; Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, Canada.
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Liang Z, Yang H, Cheng G, Huang L, Zhang T, Jia H. Repetitive transcranial magnetic stimulation on chronic tinnitus: a systematic review and meta-analysis. BMC Psychiatry 2020; 20:547. [PMID: 33228598 PMCID: PMC7684956 DOI: 10.1186/s12888-020-02947-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 11/07/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Although the clinical efficacy and safety of repetitive transcranial magnetic stimulation (rTMS) in the treatment of chronic tinnitus have been frequently examined, the results remain contradictory. Therefore, we performed a systematic review and meta-analysed clinical trials examining the effects of rTMS to evaluate its clinical efficacy and safety. METHODS Studies of rTMS for chronic tinnitus were retrieved from PubMed, Embase, and Cochrane Library through April 2020. Review Manager 5.3 software was employed for data synthesis, and Stata 13.0 software was used for analyses of publication bias and sensitivity. RESULTS Twenty-nine randomized studies involving 1228 chronic tinnitus patients were included. Compared with sham-rTMS, rTMS exhibited significant improvements in the tinnitus handicap inventory (THI) scores at 1 week (mean difference [MD]: - 7.92, 95% confidence interval [CI]: - 14.18, - 1.66), 1 month (MD: -8.52, 95% CI: - 12.49, - 4.55), and 6 months (MD: -6.53, 95% CI: - 11.406, - 1.66) post intervention; there were significant mean changes in THI scores at 1 month (MD: -14.86, 95% CI: - 21.42, - 8.29) and 6 months (MD: -16.37, 95% CI: - 20.64, - 12.11) post intervention, and the tinnitus questionnaire (TQ) score at 1 week post intervention (MD: -8.54, 95% CI: - 15.56, - 1.52). Nonsignificant efficacy of rTMS was found regarding the THI score 2 weeks post intervention (MD: -1.51, 95% CI: - 13.42, - 10.40); the mean change in TQ scores 1 month post intervention (MD: -3.67, 95% CI: - 8.56, 1.22); TQ scores 1 (MD: -8.97, 95% CI: - 20.41, 2.48) and 6 months (MD: -7.02, 95% CI: - 18.18, 4.13) post intervention; and adverse events (odds ratios [OR]: 1.11, 95% CI: 0.51, 2.42). Egger's and Begg's tests indicated no publication bias (P = 0.925). CONCLUSION This meta-analysis demonstrated that rTMS is effective for chronic tinnitus; however, its safety needs more validation. Restrained by the insufficient number of included studies and the small sample size, more large randomized double-blind multi-centre trials are needed for further verification.
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Affiliation(s)
- Zhengrong Liang
- grid.258164.c0000 0004 1790 3548Department of Otolaryngology, The First Affifiliated Hospital of Jinan University, 601 Huangpu Avenue, Guangzhou, 510632 China
| | - Haidi Yang
- grid.12981.330000 0001 2360 039XDepartment of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China ,grid.12981.330000 0001 2360 039XHearing and Speech Department, Xinhua College of Sun Yat-sen University, Guangzhou, China
| | - Gui Cheng
- grid.12981.330000 0001 2360 039XDepartment of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lingfei Huang
- grid.258164.c0000 0004 1790 3548Department of Otolaryngology, The First Affifiliated Hospital of Jinan University, 601 Huangpu Avenue, Guangzhou, 510632 China
| | - Tao Zhang
- grid.258164.c0000 0004 1790 3548Department of Otolaryngology, The First Affifiliated Hospital of Jinan University, 601 Huangpu Avenue, Guangzhou, 510632 China
| | - Haiying Jia
- Department of Otolaryngology, The First Affifiliated Hospital of Jinan University, 601 Huangpu Avenue, Guangzhou, 510632, China.
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Noh TS, Kyong JS, Park MK, Lee JH, Oh SH, Suh MW. Dual-site rTMS is More Effective than Single-site rTMS in Tinnitus Patients: A Blinded Randomized Controlled Trial. Brain Topogr 2020; 33:767-775. [PMID: 32944806 DOI: 10.1007/s10548-020-00797-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 09/09/2020] [Indexed: 10/23/2022]
Abstract
Repetitive transcranial magnetic stimulation (rTMS) has been proposed as an alternative option for treating tinnitus. rTMS is a noninvasive method in which repetitive magnetic stimulation is applied to the cortex; it is considered a therapeutic strategy that modulates the loudness of tinnitus. In this study, we performed a double-blind randomized clinical trial to compare the outcome of tinnitus treatment among (1) dual-site (auditory + prefrontal) rTMS stimulation, (2) auditory cortex only rTMS stimulation (AC), and (3) sham stimulation. The left primary auditory cortex and left dorsolateral prefrontal cortex (DLPFC) were targeted independently of handedness or tinnitus laterality. Dual-site and auditory only groups were treated with a total of 12,000 pulses, 2000 pulses over the AC and 1000 pulses over the DLPFC (group 1), 3000 pulses over the AC only (group 2), and daily for 4 consecutive days. Dual-site group exhibited a significantly better ΔTinnitus Handicap Inventory (ΔTHI) score at 4, 8 weeks and 12 weeks after rTMS treatments compared with pre-treatment. However, there was no effect in the auditory only group. Also, there was no effect in sham group when THI scores were compared with that of the pre-treatment. These results are in line with the former studies that reported a better treatment effect by multiple site rTMS.
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Affiliation(s)
- Tae-Soo Noh
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of medicine, Yongon-Dong, Chongno-Gu, Seoul, 110-744, Korea
| | - Jeong-Sug Kyong
- Department of Audiology and Speech-Language Pathology, Audiology Institute, Hallym University of Graduate Studies, Seoul, Korea
| | - Moo Kyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of medicine, Yongon-Dong, Chongno-Gu, Seoul, 110-744, Korea
| | - Jun Ho Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of medicine, Yongon-Dong, Chongno-Gu, Seoul, 110-744, Korea
| | - Seung Ha Oh
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of medicine, Yongon-Dong, Chongno-Gu, Seoul, 110-744, Korea
| | - Myung-Whan Suh
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of medicine, Yongon-Dong, Chongno-Gu, Seoul, 110-744, Korea.
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Differences in Clinical Characteristics and Brain Activity between Patients with Low- and High-Frequency Tinnitus. Neural Plast 2020; 2020:5285362. [PMID: 32774356 PMCID: PMC7399790 DOI: 10.1155/2020/5285362] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 06/23/2020] [Indexed: 11/17/2022] Open
Abstract
This study was aimed at delineating and comparing differences in clinical characteristics and brain activity between patients with low- and high-frequency tinnitus (LFT and HFT, respectively) using high-density electroencephalography (EEG). This study enrolled 3217 patients with subjective tinnitus who were divided into LFT (frequency < 4000 Hz) and HFT (≥4000 Hz) groups. Data regarding medical history, Tinnitus Handicap Inventory, tinnitus matching, and hearing threshold were collected from all patients. Twenty tinnitus patients and 20 volunteers were subjected to 256-channel EEG, and neurophysiological differences were evaluated using standardized low-resolution brain electromagnetic tomography (sLORETA) source-localized EEG recordings. Significant differences in sex (p < 0.001), age (p = 0.022), laterality (p < 0.001), intensity (p < 0.001), tinnitus type (p < 0.001), persistent tinnitus (p = 0.04), average threshold (p < 0.001), and hearing loss (p = 0.028) were observed between LFT and HFT groups. The tinnitus pitch only appeared to be correlated with the threshold of the worst hearing loss in the HFT group. Compared with the controls, the LFT group exhibited increased gamma power (p < 0.05), predominantly in the posterior cingulate cortex (PCC, BA31), whereas the HFT group had significantly decreased alpha1 power (p < 0.05) in the angular gyrus (BA39) and auditory association cortex (BA22). Higher gamma linear connectivity between right BA39 and right BA41 was observed in the HFT group relative to controls (t = 3.637, p = 0.027). Significant changes associated with increased gamma in the LFT group and decreased alpha1 in the HFT group indicate that tinnitus pitch is crucial for matching between the tinnitus and control groups. Differences of band frequency energy in brain activity levels may contribute to the clinical characteristics and internal tinnitus “spectrum” differences.
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