高頻聽力損失兒童的腦幹聽性反應與穩定狀態聽性誘發反應聽力閾值的比較

Comparison of Hearing Thresholds Assessed with Auditory Brainstem Response and Steady-State Evoked Potentials in a Group of Children with High Tone Hearing Loss

10.6320/FJM.2002.6(3).07

吳弘斌(Hung-Pin Wu)；劉殿楨(Tien-Chen Liu)；陳培榕(Peir-Rong Chen)；黃同村(Tung-Tsun Huang)；周昱甫(Yu-Fu Chou)；許權振(Chuan-Jen Hsu)

腦幹聽性反應 ； 穩定狀態聽性誘發反應 ； 詐聾 ； 平均純音聽力閾值 ； auditory brainstem response ； steady-state evoked potentials ； malingering ； pure-tone threshold average

台灣醫學

6卷3期（2002 / 05 / 01）

340 - 348

繁體中文

Verification of pure tone audiometry is the mainstay in compensation assessment for varied degrees of hearing loss and medical-legal evaluation. Currently, calculating pure-tone threshold average (PTA) of 500Hz~2000Hz from pure-tone audiometry was used as the gold standard in evaluating hearing handicap. The purpose of this study is to compare the hearing thresholds assessed with auditory brainstem response(ABR), steady-state evoked potentials(SSEP)and pure tone audiometry in a group of children with high tone hearing loss. Seventeen children with high tone hearing loss were selected to receive ABR, SSEP and pure-tone audiometry. The mean difference between ABR thresholds and PTA was 43.80+8.60dB(n=29). The mean difference between SSEP average thresholds(500~2000Hz) and PTA was 15.80+3.88dB(n=31). The mean difference between ABR thresholds and average hearing thresholds of high tone(2000~4000Hz)of pure-tone audiometry was 15.90+5.23dB(n=29). The mean difference between average hearing thresholds of high tone(2000~4000Hz) of SSEP and pure-tone audiometry was 14.00+3.95dB(n=31). We found that ABR thresholds can only predict PTA(2000Hz~4000Hz)hearing level, but not 500Hz~2000Hz hearing level. In addition, there was strong linear correlation between pure tone audiometry and SSEP in every frequency. The present result shows SSEP was more effective in assessing the PTA of behavioral pure-tone audiometry than ABR(p＜0.05). The result implied that SSEP is a better objective physiological hearing test for estimating the severity of high tone hearing loss.

Verification of pure tone audiometry is the mainstay in compensation assessment for varied degrees of hearing loss and medical-legal evaluation. Currently, calculating pure-tone threshold average (PTA) of 500Hz~2000Hz from pure-tone audiometry was used as the gold standard in evaluating hearing handicap. The purpose of this study is to compare the hearing thresholds assessed with auditory brainstem response(ABR), steady-state evoked potentials(SSEP)and pure tone audiometry in a group of children with high tone hearing loss. Seventeen children with high tone hearing loss were selected to receive ABR, SSEP and pure-tone audiometry. The mean difference between ABR thresholds and PTA was 43.80+8.60dB(n=29). The mean difference between SSEP average thresholds(500~2000Hz) and PTA was 15.80+3.88dB(n=31). The mean difference between ABR thresholds and average hearing thresholds of high tone(2000~4000Hz)of pure-tone audiometry was 15.90+5.23dB(n=29). The mean difference between average hearing thresholds of high tone(2000~4000Hz) of SSEP and pure-tone audiometry was 14.00+3.95dB(n=31). We found that ABR thresholds can only predict PTA(2000Hz~4000Hz)hearing level, but not 500Hz~2000Hz hearing level. In addition, there was strong linear correlation between pure tone audiometry and SSEP in every frequency. The present result shows SSEP was more effective in assessing the PTA of behavioral pure-tone audiometry than ABR(p＜0.05). The result implied that SSEP is a better objective physiological hearing test for estimating the severity of high tone hearing loss.