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Lee SJ, Park J, Lee SY, Koo JW, Vanneste S, De Ridder D, Lim S, Song JJ. Triple network activation causes tinnitus in patients with sudden sensorineural hearing loss: A model-based volume-entropy analysis. Front Neurosci 2022; 16:1028776. [PMID: 36466160 PMCID: PMC9714300 DOI: 10.3389/fnins.2022.1028776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/02/2022] [Indexed: 11/04/2023] Open
Abstract
Tinnitus can be defined as the conscious perception of phantom sounds in the absence of corresponding external auditory signals. Tinnitus can develop in the setting of sudden sensorineural hearing loss (SSNHL), but the underlying mechanism is largely unknown. Using electroencephalography, we investigated differences in afferent node capacity between 15 SSNHL patients without tinnitus (NT) and 30 SSNHL patients with tinnitus (T). Where the T group showed increased afferent node capacity in regions constituting a "triple brain network" [default mode network (DMN), central executive network (CEN), and salience network (SN)], the NT group showed increased information flow in regions implicated in temporal auditory processing and noise-canceling pathways. Our results demonstrate that when all components of the triple network are activated due to sudden-onset auditory deprivation, tinnitus ensues. By contrast, auditory processing-associated and tinnitus-suppressing networks are highly activated in the NT group, to overcome the activation of the triple network and effectively suppress the generation of tinnitus.
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Affiliation(s)
- Seung Jae Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, South Korea
| | - Jaemin Park
- Department of Mathematical Sciences, Seoul National University, Seoul, South Korea
| | - Sang-Yeon Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, South Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, South Korea
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, South Korea
| | - Ja-Won Koo
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, South Korea
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, South Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Sven Vanneste
- Lab for Clinical and Integrative Neuroscience, Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - Dirk De Ridder
- Unit of Neurosurgery, Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Seonhee Lim
- Department of Mathematical Sciences, Seoul National University, Seoul, South Korea
| | - Jae-Jin Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, South Korea
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, South Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea
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Bassiouni M, Häußler SM, Gräbel S, Szczepek AJ, Olze H. Lateralization Pattern of the Weber Tuning Fork Test in Longstanding Unilateral Profound Hearing Loss: Implications for Cochlear Implantation. Audiol Res 2022; 12:347-356. [PMID: 35892662 PMCID: PMC9326649 DOI: 10.3390/audiolres12040036] [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: 05/22/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 12/10/2022] Open
Abstract
The Weber tuning fork test is a standard otologic examination tool in patients with unilateral hearing loss. Sound should typically lateralize to the contralateral side in unilateral sensorineural hearing loss. The observation that the Weber test does not lateralize in some patients with longstanding unilateral deafness has been previously described but remains poorly understood. In the present study, we conducted a retrospective analysis of the medical records of patients with unilateral profound hearing loss (single-sided deafness or asymmetric hearing loss) for at least ten years. In this patient cohort, childhood-onset unilateral profound hearing loss was significantly associated with the lack of lateralization of the Weber tuning fork test (Fisher’s exact test, p < 0.05) and the absence of tinnitus in the affected ear (Fisher’s exact test, p < 0.001). The findings may imply a central adaptation process due to chronic unilateral auditory deprivation starting before the critical period of auditory maturation. This notion may partially explain the poor outcome of adult cochlear implantation in longstanding single-sided deafness. The findings may suggest a role for the Weber test as a simple, quick, and economical tool for screening poor cochlear implant candidates, thus potentially supporting the decision-making and counseling of patients with longstanding single-sided deafness.
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Affiliation(s)
- Mohamed Bassiouni
- Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Charitéplatz 1, Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (S.G.); (A.J.S.); (H.O.)
- Correspondence: ; Tel.: +49-30-450-555-072
| | - Sophia Marie Häußler
- Department of Otorhinolaryngology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany;
| | - Stefan Gräbel
- Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Charitéplatz 1, Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (S.G.); (A.J.S.); (H.O.)
| | - Agnieszka J. Szczepek
- Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Charitéplatz 1, Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (S.G.); (A.J.S.); (H.O.)
| | - Heidi Olze
- Corporate Member of Freie Universität Berlin, Berlin Institute of Health, Charitéplatz 1, Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (S.G.); (A.J.S.); (H.O.)
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