CAJ | 학술논문

目的初步探讨人工耳蜗电极植入深度和术后电诱发听性脑干反应(EABR,Electrically evoked auditory brainstem responses)及电诱发听神经复合动作电位(electrically evoked compound actionpotentials,ECAP)的相关性. 方法选取耳蜗形态正常植入奥地利标准电极患者24例,术后头颅侧位片检查判断电极全植入. 根据电极耳蜗内位置分为E9-E12耳蜗底区、E5-E8耳蜗中区、E1-E4耳蜗顶区三部分,分别记录各区域EABR阈值及波形特点和对应区域的ECAP阈值,分析其间相关性. 结果蜗顶部、蜗中部、蜗底部EABR引出率分别为87.50%,83.33%,79.16%;ECAP引出率分别为91.67%,79.17%,75%;EABR波V阈值为分别为(20.13±5.91)qu,(22.98±4.82)qu,(26.71±6.25)qu;ECAP阈值分别为 (21.61±4.18)qu,(23.28±3.70)qu,(29.18±3.74)qu.结论蜗顶部和蜗中部EABR及ECAP引出率高于蜗底部,自蜗顶区至蜗底区EABR和EACP阈值依次增高,相同植入深度电极的EABR阈值低于ECAP阈值.
목적 초보탐토인공이와전겁식입심도화술후전유발은성뇌간반응(EABR,Electrically evoked auditory brainstem responses)급전유발은신경복합동작전위(electrically evoked compound actionpotentials,ECAP)적상관성. 방법 선취이와형태정상식입오지리표준전겁환자24례,술후두로측위편검사판단전겁전식입. 근거전겁이와내위치분위E9-E12이와저구、E5-E8이와중구、E1-E4이와정구삼부분,분별기록각구역EABR역치급파형특점화대응구역적ECAP역치,분석기간상관성. 결과와정부、와중부、와저부EABR인출솔분별위87.50%,83.33%,79.16%;ECAP인출솔분별위91.67%,79.17%,75%;EABR파V역치위분별위(20.13±5.91)qu,(22.98±4.82)qu,(26.71±6.25)qu;ECAP역치분별위 (21.61±4.18)qu,(23.28±3.70)qu,(29.18±3.74)qu.결론 와정부화와중부EABR급ECAP인출솔고우와저부,자와정구지와저구EABR화EACP역치의차증고,상동식입심도전겁적EABR역치저우ECAP역치.
Objective To explore the correlation of electrically evoked auditory brain stem response (EABR) and electrically evoked compound action potential (ECAP) with the inserting depth of cochlear electrode. Methods EABR and ECAP recordings were carried out among 24 subjects with MED-EL standard cochlear electrode array implanted. With the electrode insertion depth assayed by lateral cranial X-ray photography, these evoked potential recordings were then analyzed, based on the definition of electrode placed locations in the regions of apical (E1-E4), middle (E5-E8) and basal (E9-E12) to determine if the threshold and latency differ depending on the region stimulated. Results At the locations of apical, middle and basal region, the positive recording rate was 87.50%, 83.33% and 79.16% for EABR, and that was 91.67%, 79.17%, 75% fro ECAP, with the thresholds of EABR at eV were (20.13±5.91)qu, (22.98±4.82)qu and (26.71±6.25)qu and those of ECAP were (21.61±4.18)qu, (23.28±3.70)qu, (29.18±3.74)qu respectively. Conclusions Compared to that of basal region, the positive recording rate is higher either in apical region or in middle region for both EABR and ECAP, while the threshold of EABR at eV is lower than that of ECAP in the same region as the inserting depth increasing.