Bilateral low-frequency repetitive transcranial magnetic stimulation of the auditory cortex in tinnitus patients is not effective: a randomised controlled trial

Autor: Marlien E F Niesten, Gijsbert A. van Zanten, Carlijn E. L. Hoekstra, Sebastiaan F.W. Neggers, Huib Versnel
Rok vydání: 2013
Předmět:
Zdroj: Audiologyneuro-otology. 18(6)
ISSN: 1421-9700
Popis: Background: Although some therapies may be beneficial for some patients in reducing tinnitus, there is no curative therapy. Repetitive transcranial magnetic stimulation (rTMS) has been applied as a treatment for chronic tinnitus, but the effect remains controversial. Material and Methods: Fifty patients were treated with rTMS or placebo. Treatment consisted of 2,000 TMS pulses on each auditory cortex, at a rate of 1 Hz and an intensity of 110% of the individual motor threshold, on 5 consecutive days. rTMS and placebo effects were evaluated directly after treatment, after 1 week, and after 1, 3 and 6 months. Primary outcome was the Tinnitus Questionnaire (TQ). Secondary outcomes were the Tinnitus Handicap Inventory (THI) and a visual analogue scale. Results: At none of the follow-up evaluation moments a significant difference between rTMS and placebo was observed with respect to changes in TQ or THI scores relative to pretreatment scores. Multilevel modelling (MLM) analyses did not show a global treatment effect either. Patients with a higher degree of burden showed slightly greater improvement after rTMS (only significant on the THI with MLM analyses). Conclusion: Bilateral low-frequency rTMS of the auditory cortex was not effective in treating tinnitus.
Databáze: OpenAIRE