Background Diabetes mellitus is a multisystem disorder There have been various report of hearing impairment in diabetes,Objective DPOAE(Distortion Product Otoacoustic Emissions)could be helpful in predicting the occurrences of diabetic hearing1055.Mat...
Background Diabetes mellitus is a multisystem disorder There have been various report of hearing impairment in diabetes,Objective DPOAE(Distortion Product Otoacoustic Emissions)could be helpful in predicting the occurrences of diabetic hearing1055.Material and Methods : The samples, age 40's to 60's, wereselected from those diagnosed and treated by Internal Medicine atHangang Sacred Heart Hospital of Hallym University for Diabetesmellitus. These patients had no otologic past history and noabnormalities on physical examination. DPOAE was performed on16 patients who had normal hearing ability, with hearing loss ofless than 20 dB on entire 250Hz to 8000Hz range as well asnormal findings on tympanogram. For all frequencies(1-8KHz),amplitude and latency were measured and analyzed. FBS, HbAlc,duration of disease state and complications were measured andstudied to compare and observe any correlations with the results ofthe DPOAE.Result 1) Average amplitude of DPOAE was significantly lowerin DM group than control group. 2) Latency of DPOAE was longer in DM group compared to control group. 3) Average amplitude of DPOAE was significantly lower in HbAlc lower group than HbAlchigher group.Conclusion : By measuring and studying DPOAE on diabeticpatients without hearing loss all frequencies, DPOAE could behelpful in predicting the occurrences of diabetic sensorineuralhearing loss, and by electrophysiologic approach, it could bepresumed that the pathogenesis of diabetic hearing loss may becaused by cochlea lesion