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Comparison of auditory evoked potential changes with the duration of diabetes mellitus

Sudha D, Chandraselvi E, Saikumar P.


Background: Type II diabetes is typically a chronic disease associated with decreasing life expectancy. This is partly due to the number of complications with which it is associated. With increasing duration, the glycemic control in Diabetes Mellitus is also closely associated with hearing loss.

Aim and Objective: This study aims to compare the auditory evoked potential (AEP) changes with the duration of Type II diabetic mellitus.

Materials and Methods: A total of 135 diabetic patients were involved. They were divided into three groups depending on the duration of the disease: Group-I: 0–5 years; Group-II: 5–10 years; and Group-III: 10–15 years. Blood investigation such as glycosylated hemoglobin (HbA1c) level and fasting blood sugar (FBS) levels was done in all the patients. AEP was done in all the participating diabetic patients.

Results: The FBS and HbA1c level values were increased as disease progressed up to 5–10 years of duration. Further, disease progression that is more than 10–15 years of FBS and HbA1c levels was reduced. The results of the study showed that a significant delay in AEP latencies (wave I, wave III, and wave V) and interpeak latencies (IPL I-III and IPL III-V) was prolonged in Group A-II when compared with the other two groups. The results were analyzed by mean standard deviation and using ANOVAs.

Conclusion: According to our study, the AEP latencies were prolonged in increased duration of diabetes mellitus patients. This gives a clear idea in managing the disease progress and pathological changes taking place to have a better life.

Key words: Auditory Evoked Potential; Glycosylated Hemoglobin; Fasting Blood Sugar

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