Tinnitus Evaluation in Type 1 Diabetes Mellitus at Tertiary Hospital Malaysia.

OBJECTIVES

To determine the prevalence of tinnitus in Type 1 Diabetes Mellitus (T1DM) patients, to evaluate its severity and to correlate it with estimated Glomerular Filtration Rate (eGFR) as well as glycaemia control (HbA1c).

MATERIAL AND

METHODS

We performed a questionnaire-based cross-sectional study at Hospital Canselor Tuanku Muhriz (HCTM) from a period of 15 months. A total of 133 T1DM patients who fulfilled our study's criteria were subjected to otoscopy examination, tuning fork test and free field voice test. The mini-Tinnitus Questionnaire (TQ) was used to assess the severity of tinnitus. We were careful to categorize the perceived duration of tinnitus.

RESULTS

The prevalence of tinnitus among T1DM patients was 24.1% (32/133 patients). Out of 32 patients, approximately 78.1% (25 patients) had a compensated level of tinnitus distress and the remaining 21.9% (7/32) had moderate tinnitus. The duration of tinnitus ranged from 2 seconds to 2 minutes, whıch was ringing and intermittent in nature. The HbA1c and estimated Glomerular Filtration Rate (eGFR) were higher in tinnitus compared to the non-tinnitus group. There was no significant correlation between the severity of tinnitus and HbA1c level or eGFR.

CONCLUSIONS

Our study concluded that tinnitus amongst T1DM patients was likely to be non-pathological in view of its short duration with minimal to no distress to the sufferers. An elevated HbA1c may increase the risk of developıng tinnitus.