Pathology of wave III of brainstem auditory evoked potentials (BAEPs)

In a group of 195 consecutively examined patients with brainstem neurological symptomatology parameters of the wave III BAEPs were pathological in 20 patients. In 70% of them the clinical symptomatology and/or the cranial computed tomography examination results pointed to a lesion at the level of pontomedullary junction and lower pons Varoli where according to the recent opinion the possible generators of this BAEP wave are situated (superior olivary complex, nuclei cochleares, corpus trapezoideum). These results support the supposed localization of possible generators of the wave III BAEPs.