Non-sedated ABR Characteristics Of People With Noise Exposure

HUANG Hang; HUANG Yanting; ZHAO Wulan; XU Fei; WANG Feng

doi:10.3969/j.issn.1672-2922.2024.02.013

Abstract：Objective To explore the characteristics and effectiveness of non-sedative auditory brainstem re-sponse in people exposed to long-term noise.Methods From January 2023 to April,15 young students without a long history of noise exposure from the School of Medical Technology and Information Engineering of Zhejiang Chinese Medicine University were selected as the normal group,and 15 workers with a long history of noise exposure(about 8 h/d of noise exposure)from Hangzhou Zuming Tofu Factory were selected as the noise exposure group.Non-sedated audi-tory brainstem response was performed in both groups.The differences of I and V wave latency and V wave amplitude between the two groups were compared,and the correlation between pure tone and non-sedative ABR was investigated by bivariate Pearson correlation analysis.Results At 80 dB nHL intensity,I wave latency in normal group was earlier than that in noisy group,and there was a significant difference(P＜0.05),while other intensives had no statistical signifi-cance.There was no significant difference in the amplitude of V wave between the two groups at each intensity.The av-erage pure tone threshold in the normal group was positively correlated with the non-sedated ABR threshold,and the cor-relation was significant(r=0.540,P＜0.05).The average pure tone threshold was positively correlated with the non-sedat-ed ABR threshold,and the correlation was significant(r=0.688,P＜0.01).Conclusion The latency of I wave is delayed under 80 dB nHL stimulation,which has certain reference value for noise-induced recessive hearing loss.The correla-tion between non-sedative ABR and pure tone audiometry was higher in noise group than in normal group,and the cross-verification accuracy was higher.