Tinnitus and depression after cochlear implantation in adult sensorineural deafness
Objective: The aim of this study is to investigate the changes and correlation of tinnitus and depression in adult patients with severe deafness after cochlear implantation.
Methods: A total of 166 adult patients who underwent cochlear implantation（CI） were retrospectively selected as the research objects. All patients were investigated by Chinese Version of the Tinnitus Handicap Inventory（THI-C） and Chinese Version of the Beck Depression Inventory-Ⅱ（BDI-Ⅱ-C） before and after operation, and the improvement of tinnitus after operation was observed THI-C and BDI-Ⅱ-C scores before and after operation and the correlation between them.
Results: Re-examination at 6 months after CI showed that the evaluation grade of tinnitus disability before and after the operation decreased significantly（Z=-9.478, P<0.001）, and the THI-C score （t=69.128, P<0.001）, and BDI-Ⅱ-C score （t=58.531，P<0.01）were significantly reduced. Spearman correlation analysis showed that there was a significant positive correlation between THI-C and BDI-Ⅱ-C scores before and after operation, aswell as the improvement of THI-C score and BDI-Ⅱ-C score（rpreoperative=0.763, rpostoperative=0.741, rdifference=0.741, all P<0.001）.
Conclusion: Cochlear implantation can significantly improve tinnitus and depression in adult patients with sensorineural hearing loss. With the improvement of tinnitus, the depressive state of patients can be alleviated accordingly.