This file will investigate the findings in the article ¿contralateral routing of signal hearing aid versus trancutaneous bone conduction in single-sided deafness¿, audiology nurotology, 2015; 20 (4): 251-260.¿this study was a crossover multicenter study, comparing a cros [contralateral routing of signal] hearing aid to alpha 1 for the rehabilitation of ssd [single-sided deafness] in adults.¿ a total of 24 patients were initially included in the study, 18 of which underwent both cros and alpha 1 trials.¿the cause of dissatisfaction with alpha 1 [sophono] was physical discomfort in 1 case (6%) and poor sound quality for 3 others (17%).¿ ¿no intraoperative complication was reported.The immediate postoperative course was also uneventful.Ten days after the implantation, 2 regressive hematomas (15%) were noted.One case of local abscess (8%) required explantation and subsequent reimplantation.One month after surgery, 5 patients complained of local pain, and 1 patient still had a local erythema which persisted during the observation period.¿ three months after implantation of the alpha 1, 1 patient was unsatisfied and complained of residual local pain.One year after implantation, 3 patient reported local discomfort.
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