난청 환자에서 청성뇌간반응검사와 순음청력검사 간 주파수별 역치 차이 분석

임태헌; 김종양; 오주형; 주준범; 조주은; 박보나

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자료유형: 학술저널

저자정보: 임태헌 (국립경찰병원 이비인후과) 김종양 (국립경찰병원 이비인후과) 오주형 (국립경찰병원 이비인후과) 주준범 (국립경찰병원 이비인후과) 조주은 (국립경찰병원 이비인후과) 박보나 (국립경찰병원 이비인후과)

저널정보: 대한이비인후과학회 대한이비인후-두경부외과학회지 대한이비인후-두경부외과학회지 제66권 제1호

발행연도: 2023.1

수록면: 7 - 14 (8page)

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Background and Objectives There is no clear standard for the difference in the thresholdsof auditory brainstem response (ABR) and pure tone audiometry (PTA) when using ABR toevaluate the reliability of PTA. Therefore, we assessed the difference in the thresholds of ABRand PTA for each frequency. Consequently, we present here the actual difference values betweenthe two tests that can be used as a reference in the clinic. Subjects and Method We retrospectively assessed the audiometry results of 129 ears. Earsin which the hearing thresholds of each frequency continuously declined were classified as thedownward group. We compared the average of differences between the two tests by frequency. The differences were compared for each hearing level from 50 dB or higher. Results For all ears, the appropriate range of difference value was ±5 dB at 2 kHz. At 1 kHz,the ABR threshold was 10 dB higher than PTA, and it was 10 dB less than PTA at 4 kHz. Inthe downward group, the difference value increased by 10 dB at 1 kHz and 4 kHz. In the subgroupsat each hearing level, the difference value showed similar results (p<0.05). Conclusion The difference in the threshold, regardless of the severity or tendency of hearingloss, was the smallest at 2 kHz and the range was ±5 dB. ABR was 10 dB higher at 1 kHz andand 10 dB lower at 4 kHz than PTA. In the downward group, the difference at 1 kHz and 4kHz increased by 10 dB each.

#Audiometry #Auditory brainstem responses #Auditory threshold #Hearing loss.

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