Abstract
Constraint-induced music therapy (CIMT) has been shown to enhance hearing recovery in patients with sudden sensorineural hearing loss (SSNHL) by preventing maladaptive reorganization of the auditory cortex. This study was the second research to provide scientific evidence related to the neuroplasticity of the central auditory nervous system in response to constraint-induced acoustic rehabilitation.
Highlights
Sudden sensorineural hearing loss (SSNHL) refers to a subjective sensation of hearing impairment over a period of less than 72 hours
Among the 44 patients included in the study, 9 patients were included in the prospective Constraint-induced music therapy (CIMT) study arm and 35 patients in the retrospective non-CIMT study arm
In non-CIMT group, the mean post-operative hearing thresholds were significantly better at two weeks post-treatment (42.86 ± 24.87 dB) and four weeks post-treatment (30.34 ± 22.93 dB) than they were pre-operatively (62.48 ± 25.11 dB, both P
Summary
Sudden sensorineural hearing loss (SSNHL) refers to a subjective sensation of hearing impairment over a period of less than 72 hours. Okamoto et al applied this approach to the neuro-rehabilitation of patients with SSNHL They reported that patients who received constraint-induced sound therapy in conjunction with standard corticosteroid therapy enjoyed significantly better hearing recovery than did those who received only corticosteroid treatments. They attributed those results to brain activity preventing maladaptive reorganization of the auditory cortex. Our objective in this study was to assess (1) the additive effect of neuroplasticity on hearing recovery and (2) the unique capacity of constraint-induced acoustic stimulation to prevent maladaptive cortical plasticity in patients with idiopathic SSNHL
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