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Audiol > Volume 11(4); 2015 > Article
Audiology 2015;11(4): 302-309.
Published online: October 31, 2015.
doi: http://dx.doi.org/10.21848/audiol.2015.11.4.302
청성뇌간유발반응검사 자극강도에 따른 변조이음향방사 비교
이재석, 홍석민, 홍석진, 박일석, 김용복, 심민경, 금보람
한림대학교 의과대학 이비인후과학교실
Comparison of Distortion Product Otoacoustic Emissions (DPOAEs) following Stimulus Intensity of Auditory Brainstem Response (ABR) Test
Jae Suk Lee, Seok Min Hong, Seok jin Hong, Il Seok Park, Yong Bok Kim, Min Gyeong Shim, Bo Ram Keum
Department of Otolaryngology-Head and Neck Surgery, Hallym University, College of Medicine, Gyung Gi, Korea
Correspondence  Seok Min Hong ,Tel: (031) 8086-2670, Fax: (031) 8086-2681, Email: thecell@hallym.or.kr
Received: July 13, 2015; Revised: October 17, 2015   Accepted: October 19, 2015.  Published online: October 31, 2015.
ABSTRACT
The purpose of this study is to examine whether the auditory function of patients are subtlely influenced by loud sound used in auditory brain stem response (ABR) test using a distortion product otoacoustic emissions (DPOAEs). A total of 33 subjects who visited the ENT clinic with sudden idiopathic hearing loss disease or a suspected other peripheral vertigo disease (9 males and 24 females) were enrolled in this study. Fifty-seven ears with hearing threshold levels less than 15 dB HL were selected (0.25 ~ 8 kHz). The DPOAEs test was performed before and immediately after ABR test. We found no statistically significant changes in DPOAEs parameters before and immediately after ABR test. And also, DPOAEs implemented before and immediately after ABR test showed a higher correlation at all frequencies. This study showed that the intensity of sound stimulus of ABR test do not affect the subtle changes in auditory function. it is suggested that the exposure duration and intensity of the sound stimulus applied to ABR test of this study is insufficient to achieve a statistically significant result. Therefore, further study will be needed about other auditory evoked potential test, which use the continuous stimulus intensity of 90 dB nHL for identification of effect on auditory function.
Key Words: Distortion product otoacoustic emissions, Auditory brainstem response, Heairng threshold shift
중심단어: 변조이음향방사, 청성뇌간유발반응, 청력역치변화
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