// Changes in Electrode Impedance and Cochlear Microphonic in Cochlear Implant Recipients in the First Year After Cochlear Implantation
在21名成人術中及術後至12月追蹤電極阻抗與耳蝸微電位CM（反映毛細胞功能）｜阻抗在中段增幅最大；CM術後6週在頂端與中段下降最顯著，兩者不相關，但6週高阻抗與3月低CM預測12月殘存聽力較差｜兩指標反映不同組織反應，需更大樣本驗證預後應用價值
// We longitudinally measured electrode impedance and cochlear microphonic (CM) at 16 electrodes in 21 adults intraoperatively and at 6 weeks, 3, 6, and 12 months after cochlear implantation. Impedance and CM changed differently by cochlear segment, with the largest impedance increase in the middle segment and the biggest CM decrease (especially apical and middle) between surgery and 6 weeks. Impedance and CM were not correlated, but higher 6-week impedance and lower 3-month CM predicted worse residual hearing at 12 months. These metrics likely reflect different tissue-related processes around the electrode array, and larger studies are needed to confirm their prognostic value.
Published 2026年9月22日
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