RESUMO
OBJECTIVE: It is aimed to determine the therapeutic role of transcutaneous electrical nerve stimulation (TENS) on chronic subjective tinnitus with a randomized and comparative analysis. METHOD: 46 individuals with normal hearing, chronic subjective tinnitus, aged 20-65; randomly divided into the study (TENS therapy) and tje control groups. The control group (n = 23) was informed only about tinnitus, while the study group (n = 23) received TENS therapy (20 sessions in 4 weeks). Before TENS therapy, tinnitus-related evaluations of all participants [tinnitus frequency, loudness, minimum masking level (MMS), residual inhibition (RI)] were made and Tinnitus Handicap Inventory (THI), Visual Analogue Scale (VAS), Short Form 36 (SF-36), and The Quality of Life Scale were applied to the participants. These evaluations and questionnaires were repeated after 4 weeks of the therapy. RESULTS: There was a significant decrease in the tinnitus severity after TENS therapy in the study group (p = 0.003). Moreover, it was found that VAS (loudness and annoyance), THI (functional, emotional and total score), SF-36 (physical function, physical role, pain, general health, vitality, emotional role and social function) values improved compared to before TENS therapy and the difference was significant (p < 0.05). There was no significant difference between the first and last evaluations of the control group (p > 0.05). CONCLUSION: TENS is an effective, practical and reliable therapy method in reducing severity, loudness, and annoyance of tinnitus, and increasing the quality of life in individuals with chronic subjective tinnitus.
