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Inconsistencies in the correlation between loss of brain stem auditory evoked response waves and postoperative
W D Mustain1, O al-Mefty, V K Anand
1Department of Surgery (Division of Otolaryngology), University of Mississippi School of Medicine, Jackson.
Journal of Clinical Monitoring
|July 1, 1992
Abstract:
This case underscores the difficulty of predicting postoperative hearing status from brain stem auditory evoked response (BAER) monitoring when wave I is preserved and all later waves are lost. During an operation involving the base of the skull, sudden and irreversible loss of all BAER waves beyond wave I occurred unilaterally. Wave I was preserved, with reduced amplitude and minimal latency shift. There was no permanent postoperative hearing sensitivity loss or speech discrimination loss.