The concept of central diabetic neuropathy has been described in the recent years. Peripheral and autonomic nervous system involvement in type 2 diabetes mellitus is evidenced by numbers of studies while evidence of central involvement in diabetes is scarce.
Evoked potentials can be used to central diabetic neuropathy. Of these, brainstem auditory evoked potential (BAEP) studies have come to the fore. In this study, BAEP responses of the 126 diabetic patients were compared to those of a control group of 30 (age and sex-matched) healthy subjects.
In the diabetics, latencies of waves I, III and V together with interpeak latencies I-III and I-V were found to be significantly more prolonged than those of controls.
Results were evaluated in view of literature knowledge and it was concluced that BAEPs might be a useful diagnostic tool in detecting central diabetic neuropathy.
Keywords: Brainstem auditory evoked potentials, diabetes mellitus, central neuropathy