Department of Audiology and Speech Language Pathology, Mackay Medical College, Taipei, Taiwan.
Department of Speech and Hearing Disorders and Sciences, National Taipei College of Nursing Taipei, Taiwan.
Acta Otolaryngol. 2020 Jun;140(6):497-500. doi: 10.1080/00016489.2020.1736338. Epub 2020 Mar 18.
Many studies have focused on the suppressive effects of cochlear implants (CIs) on loudness of tinnitus. This study aimed to examine the effects of CIs and their activation on changes in loudness and tinnitus and explore other factors associated with this effect. We recruited 26 CI recipients according to specific criteria. Participants asked to complete tinnitus questionnaires, while the CI was kept on and at 30 min after the CI was turned off. Tinnitus improvement after CI was tested using Wilcoxon signed rank tests, and correlation was tested using Spearman's rank correlation coefficients and multiple linear regression. After CI, tinnitus reduced from 62% to 46%. Total and partial reduction in tinnitus was seen in 76% subjects with pre-CI tinnitus. However, 6% of the subjects had tinnitus since birth, and none showed worsening tinnitus. The average THI score while the CI on was significantly lower than that CI off. Post-CI tinnitus improvement was seen in 76% of those with pre-CI tinnitus; however, the low risk of new or aggravating tinnitus should be considered, and reasonable expectations for tinnitus reduction should be built into the pre-CI assessment.
许多研究都集中在耳蜗植入物 (CI) 对耳鸣响度的抑制作用上。本研究旨在探讨 CI 及其激活对响度和耳鸣变化的影响，并探索与该效应相关的其他因素。我们根据特定标准招募了 26 名 CI 受者。参与者被要求完成耳鸣问卷，同时将 CI 打开并在关闭 30 分钟后进行。使用 Wilcoxon 符号秩检验测试 CI 后的耳鸣改善情况，并使用 Spearman 秩相关系数和多元线性回归测试相关性。CI 后，耳鸣从 62%降低到 46%。在有 CI 前耳鸣的受试者中，76%的受试者出现了耳鸣的完全和部分减轻。然而，6%的受试者有先天性耳鸣，没有一个人出现耳鸣加重。当 CI 开启时的平均 THI 评分明显低于 CI 关闭时的评分。在有 CI 前耳鸣的受试者中，76%的人出现了耳鸣改善；然而，应该考虑到新的或加重的耳鸣的低风险，并在 CI 前评估中建立对耳鸣减轻的合理期望。
