Auditory Evoked Brain Stem Potential with click stimuli and Ichirp

Abstract

Purpose: To compare the traces of Brainstem Auditory Evoked Potential with the use of click stimuli and Ichirp in adults with normal hearing. Methods: This is a cross-sectional, analytical, quantitative study. Eleven hearing adults with ages between 20 and 25 years, with normal audiometric thresholds, totaling 22 ears were analyzed. These subjects performed the recording of the Auditory Evoked Potential of Click Brain Trunk and Ichirp. The latency and amplitude of the V wave was recorded through a computer using the Intelligent Hearing System (IHS) equipment at intensities: 80, 60, 40 and 20 dB. Results: No statistically significant differences were observed in V-wave amplitudes when compared to the Ichirp stimulus with the click, in the intensities of 80 dB (p = 0.11), 60 dB (p = 0.14), 40 dB (p = 0.96) and 20 dB P = 0.21). Regarding the latency of the V wave, significant statistical differences between the Ichirp and click stimuli were found in the following intensities: 60 dB (p = 0.003) and 40 dB (p = 0.016). Conclusion: Larger latencies were observed with the Ichirp stimulus