NR ZDCA

AU Sallach,K.; Kroll,S.; Greulich,W.; Gehlen,W.

TI Significance of early brain-stem auditory evoked potentials (BAEP) regarding patients with minor head injuries

QU Electroenceph. Clin. Neurophysiol. 1992; 83(5): 115P

PT Proceedings Abstract

AB Early brain-stem auditory evoked potentials (BAEP) are used to prove lesions of the auditory system, expecially of medulla oblongata, pons and mesencephalon. Of particular importance are the diagnostic of function and structure of the basal brain-stem and the practicability for monitoring in cases of neurosurgical or neurological diseases such as those occurring after different serious head injuries. This examination is based on a survey of 77 female and male patents aged 9-60 years (average 35 years) with minor head injuries - 42 cases with concussion and 35 with contusion of the brain - classified by clinical criteria. BAEP were registered at different times after the injury on both sides on standardized conditions. Both the peak latencies of waves I-VII and the interpeak latencies of the waves I-III, III-V and I-V were evaluated. The latencies of both groups were compared with the results of a normal population as well as within the groups themselves. Further complications and the time after the trauma were taken into account. The results imply that in a case of minor head injury BAEP represents a significant method to prove malfunction particularly of medulla oblongata and pons. The interval between the trauma and the time of examination seems to be of secondary importance.

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