Comparison Between Air-Conduct and Bone-Conduct Auditory Brainstem Responses in Normal Hearing Young Adults / 听力学及言语疾病杂志

ABSTRACT

Objective To evaluate and compare the results of air-conduct and bone-conduct auditory brainstem response(ABR)for the purpose of clinical application of the bone-conduct ABR.Methods A group of normal hearing young adults(61 ears)were measured with click stimulation air-conduct ABR and bone-conduct ABR in a soundproof chamber.Results The waveforms of bone-conduct ABR were almost the same as those of air-conduct ones with the threshold of 26.08?7.71 dB(nHL),but with a lower rate of wave derivation.There were no significant differences between male and female for both air-conduct and bone-conduct ABR testing.The threshold for bone-conduct ABR was higher than that of air-conduct one with a very high positive correlation(r=0.7740)and there were significant differences (P0.05) for the wave intervals.Conclusion The limitation of the bone-conduct ABR application and the differences from air-conduct should be considered when it was used clinically.