人工内耳埋込手術翌日と7日目の自発眼振の出現率と聴力の変化

  • 中村 雅子
    医療財団法人神尾記念病院 東京医療センター・臨床研究 (感覚器) センター
  • 加我 君孝
    東京医療センター・臨床研究 (感覚器) センター

書誌事項

タイトル別名
  • Incidence of spontaneous nystagmus in one day and 7days after cochlear implantation and postoperative hearing
  • ―電極挿入法による比較―
  • ―A comparison between the cochleostomy & round window approach

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抄録

<p> There are two techniques for cochlear implant placement. This study aimed at comparing spontaneous nystagmus and postoperative hearing change one day and 7days after surgery between the cochleostomy and the round window approach.</p><p></p><p> Twenty-two patients who underwent cochlear implantation by the cochleostomy approach and 36 patients by the round window approach were studied. Spontaneous nystagmus was recorded one day and 7days after cochlear implant using VNG and subjective vertiginous sensation was investigated by interviewing. Long-term postoperative hearing was compared with preoperative hearing.</p><p></p><p> The incidence of spontaneous nystagmus in the round window approach patients at one day and 7days was higher than in the cochleostomy patients, although mo significant difference was seen in the slow phase velocity between the round window or cochleostomy approach. One day and 7days after the cochlear implantation, a vertiginous sensation was subjectively perceived in patients who underwent the cochleostomy rather than the round window approach. It was found that temporary vestibular irritation was associated with both the cochleostomy and round window approach.</p>

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