Fentanyl anesthesia and human brain-stem auditory evoked potentials

Abstract

The effect of incremental doses of fentanyl on brain-stem auditory evoked potentials (BAEPs) was studied in 10 patients scheduled for elective surgery. Seven sets of BAEPs were recorded in each patient starting the day before surgery, after premedication and after 10 μg/kg imcrements of fentanyl up to 50 μg/kg. No significant effect on either absolute or interpeak latencies of wave I, III, and V of evoked potentials was observed.