Significance of the Auditory Evoked Potential Test in the Medicolegal Identification of Hearing Loss

Objective To study the significance of the auditory evoked potential test(AEPT)in the medicolegal identification of traumatic hearing loss.Methods 57 cases of traumatic hearing impairment in the clinical medicolegal identification were analyzed so as to study the importance of AEPT in the medicolegal identification of the severity of hearing impairment and conduct the statistical analysis on the correlation between AEPT results and hearing loss degree.Results The results of the objective items of AEPT were coincident with hearing loss degree for the persons to be identified.After hearing impairment,the comparison of AEPT results indicated that the hearing loss for the persons to be identified was recovered to different extents.The hearing loss degree was closely relevant with the injury location of hearing.Conclusion ABR-click and 40 Hz AERP-Tone-500 Hz can objectively and righteously identify hearing impairment in association with pure tone audiometry,electric audiometry,acoustic resistance,otoacoustic emission and others and distinguish feigned deafness and significantly exaggerated hearing impairment.This approach is very significant in medicolegal identification.