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Counteracting tinnitus by acoustic coordinated reset neuromodulation
Peter A Tass1, Ilya Adamchic, Hans-Joachim Freund
1Research Center Jülich, Institute for Neuroscience and Medicine-Neuromodulation INM-7, Jülich, Germany. p.tass@fz-juelich.de
Restorative Neurology and Neuroscience
|March 15, 2012
Summary
Acoustic coordinated reset (CR) neuromodulation effectively reduced tinnitus symptoms and loudness in patients. This non-invasive therapy demonstrated sustained effects and improved tinnitus-related EEG alterations, offering a new treatment approach.
Area of Science:
- Neuroscience
- Audiology
- Medical Technology
Background:
- Subjective tinnitus is linked to abnormal neuronal synchronization in the brain.
- Current treatments for tinnitus have limited efficacy.
Purpose of the Study:
- To investigate the safety and efficacy of acoustic coordinated reset (CR) neuromodulation for tinnitus.
- To assess the potential of CR neuromodulation to counteract tinnitus-related neuronal synchrony.
Main Methods:
- A prospective, randomized, single-blind, placebo-controlled trial involving 63 patients with chronic tonal tinnitus.
- Evaluation of safety and efficacy using visual analogue scale (VAS) and Tinnitus Questionnaire (TQ) scores, alongside spontaneous electroencephalography (EEG).
Main Results:
- CR treatment was safe, well-tolerated, and significantly reduced tinnitus loudness and symptoms compared to placebo.
- Treatment effects persisted after a 4-week pause and showed long-term benefits at 10 months.
- 75% of patients achieved a clinically significant response (≥6 TQ points reduction), with an average 50% TQ score decrease among responders.
- CR therapy normalized tinnitus frequency and reversed tinnitus-related EEG alterations.
Conclusions:
- Acoustic CR neuromodulation offers a novel, non-invasive therapeutic strategy for tinnitus.
- The observed reduction in tinnitus and normalization of neuronal activity suggest potential applications for other conditions characterized by neuronal hypersynchrony.
