The Long-Term Effect of Cochlear Implantation on Tinnitus: A Systematic Review and Meta-Analysis

Overview

Journal Diagnostics (Basel)

Specialty Radiology

Date 2024 Sep 28

PMID 39335707

Authors

Yutian Li

Huiwen Yang

Xun Niu

Yu Sun

Affiliations

Soon will be listed here.

Abstract

Objective: This systematic review investigates the long-term effect of cochlear implantation (CI) on clinical outcomes in tinnitus patients with sensorineural hearing loss (SNHL).

Database Sources: PubMed, Embase, and the Cochrane Library were searched from inception to 30 April 2024. Manual searches of reference lists supplemented these searches when necessary.

Review Methods: Original studies included in the meta-analysis had to contain comparative pre- and postoperative data for SNHL patients who underwent CI. Outcomes measured were the Tinnitus Handicap Inventory (THI), Visual Analog Scale (VAS), and Tinnitus Questionnaire (TQ).

Results: A total of 28 studies comprising 853 patients showed significant tinnitus improvement after CI: THI mean difference (MD) -14.02 [95%CI -15.29 to -12.76, < 0.001], TQ MD -15.85 [95%CI -18.97 to -12.74, < 0.05], and VAS MD -3.12 [95%CI -3.49 to -2.76, < 0.05]. Subgroup analysis indicated a significant difference between follow-up periods in THI ( < 0.0001) and VAS loudness ( = 0.02).

Conclusions: Cochlear implantation substantially improves tinnitus in patients with hearing loss, though the effect may diminish over time. Further research is needed to confirm these findings.

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