Abstract
We have dealt with the actual case of BAEP test occurring in the operating room in detail. For easy understanding, various figures, BAEP stack wave, and BAEP wave are described in detail. First, cochlear nerve damage was classified as mild, moderate, severe, and critical with the BAEP waveform. Second, the BAEP waveform was explained by classifying it into a phase in which a change occurs in a temporal concept. Third, by classifying the warning criteria into six steps, a clear answer was presented as to whether the change in wave V latency or the change in amplitude is important. Fourth, a prewarning sign prior to the warning sign was presented to discriminate significant BAEP changes in advance. Fifth, intraoperative BAEPs were transient loss, but there were cases of hearing loss after surgery. Conversely, intraoperative BAEPs were permanent loss, but the patient’s hearing was normal after surgery was examined in detail. Sixth, the relationship between the cause of occurrence and the waveform during surgery was described for the delayed BAEP loss phenomenon that occurs after the main procedure and the dizziness complications that occur after surgery.
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Park, SK., Joo, BE., Park, K. (2021). Cases of Brainstem Auditory Evoked Potentials. In: Intraoperative Neurophysiological Monitoring in Hemifacial Spasm. Springer, Singapore. https://doi.org/10.1007/978-981-16-1327-2_3
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DOI: https://doi.org/10.1007/978-981-16-1327-2_3
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