Abstract

The aim of the present study was to find the prevalence of SNHL in type 2 diabetes patients and to find the effect of duration and control of diabetes on hearing loss. Methods: The present analytical cross-sectional study was conducted in Department of Otorhinolaryngology, Mamata Medical College, Khammam, for period of 1.5 years after obtaining the ethical clearance from the Institutional Ethical Committee. The present study was conducted on 200 type 2 diabetes patients and age and gender matched 200 non- diabetic controls in the age group of <50 years. Results: In the present study, 68% were females and 32% were male. The mean age of patients was 44.16, mean fasting blood sugar was 130.60±28.62, mean PP blood sugar was 172.18±42.28and mean HbA1c was 7.40±0.45. Mean age of patients was 36.60, mean fasting blood sugar was 108.02±3.16, mean post-prandial blood sugar was 126.54±9.99and mean HbA1c was 6.004±0.220. It showed that only 50 patients had normal hearing and 150 patients had SNHL whereas 32 patients in this group had minimal hearing, 38 had mild SNHL, 48 had moderate, 12 had severe SNHL and 20 patients had profound SNHL. 140 patients had DPOAE refer whereas 60 patients had DPOAE pass. Conclusion: This study concluded that the diabetics are at definite risk of developing auditory dysfunction, therefore it is recommended that all newly diagnosed diabetic patients should undergo a complete audiological evaluation at the time of diagnosis and a regular half yearly or yearly follow up is warranted for early detection of damage to auditory functions. Although factors other than diabetes contribute to hearing loss, early glycemic control for type 2 diabetic patients may reduce the incidence rate of this disease.

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