Comparison of clinical characteristics in patients with bilateral and unilateral tinnitus

Abstract

Conclusion: Discomfort from bilateral tinnitus was more frequent and severe than that from unilateral tinnitus. Also, patients with bilateral tinnitus were significantly older and tended to have a longer duration of tinnitus than those with unilateral tinnitus. Background and subjects: Although bilateral tinnitus differs from unilateral tinnitus, their treatment is identical. Clinical characteristics associated with tinnitus, including tinnitograms, were retrospectively examined in 105 patients with unilateral tinnitus and 102 with bilateral tinnitus evaluated in the center between January 2012 and January 2014. This study compared the two groups to assess the characteristics differentiating their treatment. Results: Mean age was significantly higher in patients with bilateral than unilateral tinnitus (p = 0.04), but gender distribution and duration of tinnitus were similar in the two groups. Both tinnitus handicap index (THI) and Beck depression index (BDI) values were significantly higher in patients with bilateral than unilateral tinnitus (p < 0.05 each). Rates of hyperacusis (p = 0.23), ear fullness (p = 0.16), and vertigo (p = 0.31) did not differ significantly between the two groups. Also, audiology test results, including tinnitograms, showed no significant differences.

Keywords:

• tinnitus
• unilateral
• bilateral
• chronic tinnitus
• THI
• BDI

Acknowledgments

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2011-0030072).

Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.