Audiology and Neurotology Extra · 2016 · 29 citations · 45 references
Health ProfessionsAudiologyNutritional SciencesHearing AssessmentHearing ScienceOtologyHearing ImpairmentHearing LossNoise ExposureNoise-induced Hearing Loss PreventionTemporary Threshold ShiftTinnitusDietary Supplement EfficacyDouble-blind TrialsHearing EffectsMusic-induced Hearing Loss PreventionNoise-induced Temporary Threshold ShiftNoise-induced Threshold ShiftNoise-induced TinnitusTinnitus Reduction
This study examined potential prevention of music-induced temporary threshold shift (TTS) in normal-hearing participants. A dietary supplement composed of β-carotene, vitamins C and E, and magnesium was assessed using a randomized, placebo-controlled, double-blind study design. Dosing began 3 days prior to the music exposure with the final dose consumed approximately 30-min pre-exposure. There were no group differences in post-exposure TTS or music-induced decreases in distortion product otoacoustic emission (DPOAE) amplitude. Transient tinnitus was more likely to be reported by the treatment group, but there were no group differences in perceived loudness or bothersomeness. All subjects were monitored until auditory function returned to pre-exposure levels. Taken together, this supplement had no effect on noise-induced changes in hearing. Recommendations for future clinical trials are discussed.
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