Evaluation of dichotic hearing in type 2 diabetic patients
Background and Aim: Diabetes mellitus is a metabolic disease in which various organs of the body, including the ears, are involved. In this regard, less research has been conducted on the auditory system, especially in its central part. Regarding the high prevalence of diabetes and the lack of evaluation of dichotic hearing, this study aimed to assess the dichotic hearing system in people with type 2 diabetes (T2D) without neuropathy using the staggered spondaic word (SSW) test and dichotic digit test (DDT).
Methods: This study included 28 individuals with T2D without neuropathy who were diagnosed according to the protocol of American Diabetes Association (2014) and 24 healthy subjects aged 20 to 60 years old of both genders. Participants were evaluated using spondaic words test and normalized Persian version of the DDT.
Results: The mean and qualitative data in SSW and right ear score, left ear score, and ear advantage were compared between two groups in the DDT test. The results showed that the subjects with T2D, except for ear advantage in DDT test, have a significant difference with the normal group.
Conclusion: Dichotic hearing processing in patient with T2D without neuropathy has a poor function, and, in particular, affects the temporal lobe and brainstem regions.
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