광대역소음 부하 후 이음향방사의 변화와 일시역치변동과의 관계

이덕규; 이재은; 고의경; 이일우; 공수근; 전경명

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자료유형: 학술저널

저자정보: 이덕규 이재은 고의경 이일우 공수근 전경명

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후과학회지 두경부외과학 제53권 제3호

발행연도: 2010.1

수록면: 143 - 147 (5page)

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연구주제

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연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

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Background and ObjectivesZZA distortion product otoacoustic emission (DPOAE) is a noninvasive method which is commonly used to assess the hearing function of the cochlea and to reflect objective information of specific frequency in the cochlea. We hypothesize that after applying a broad band noise (BBN), the outer hair cell’s function will change and cause reduction in the amplitude of DPOAEs and signal to noise ratio (SNR). Subjects and MethodZZWe performed the examination on 40 subjects (80 ears) who have a normal hearing function. DPOAEs were recorded before and after BBN stimulation (intensity: 90dB HL, duration: 10 minutes). ResultsZZAfter the BBN stimulation, the amplitude of DPOAEs and SNR were decreased at all frequencies. The amplitude of DPOAEs and SNR decreased 0.3-1.6 dB SPL, 0.6-1.5 dB SPL,respectively. Decreases in the amplitude had statistical significances after 3 and 6 minutes in 1kHz, 3 and 6 minutes in 2 kHz, immediately after noise exposure, and after 3 and 6 minutes in 6kHz. However, the SNR changes had statistical significance only after 3 minutes in 1 kHz. After the stimulation, pure tone threshold at 4 kHz increased 3.2±3.9 dB HL. After the BBN exposure,the amplitude of DPOAEs and SNR decreased at all frequencies and most of them recovered within 12 minutes. ConclusionZZThese results suggest that DPOAE could be a clinically useful method for the purpose of screening, managing and assessing the prognosis of acoustic trauma and noise induced sensorineural hearing loss. Korean J Otorhinolaryngol-Head Neck Surg 2010;53:143-7

#Otoacoustic emissions·Noise·Auditory fatigue.

참고문헌 (17)

참고문헌 신청

Dew LA / 1993 / Change in size and shape of auditory hair cells in vivo during noise-induced temporary threshold shift / Hear Res 66 (1) : 99 ~ 107

Engdahl B / 1996 / Effects of noise and exercise on distortion product otoacoustic emissions / Hear Res 93 (2) : 72 ~ 82

Hong SH / 2008 / Otoacoustic Emissions / J Clinical Otolaryngol 19 (1) : 25 ~ 35

Jang BI / 1999 / The Variation in otoacoustic emission data according to the different location of probe / Korea J Otolaryngol-Head Neck Surg 42 (7) : 820 ~ 823

Jang YJ / 1999 / Monitoring by ABR, TEOAE and DPOAE of noise induced hearing loss in guinea pig / Korean J Otolaryngol-Head Neck Surg 42 (9) : 1089 ~ 1092

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