...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Otology and neurotology: official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology >Clinical relevance of the distance between the cochlea and the facial nerve in cochlear implantation.
【24h】

Clinical relevance of the distance between the cochlea and the facial nerve in cochlear implantation.

机译：人工耳蜗植入中耳蜗和面神经之间距离的临床意义。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

HYPOTHESIS: To elucidate possible mechanisms of facial nerve costimulation after cochlear implantation that are supposed to result from the close cochlea to facial nerve contact. BACKGROUND: One of the postoperative complications of cochlear implantation is facial muscle twitching, which has preferentially been found in otosclerotic patients. It impairs hearing benefits because of deactivation of electrodes and can still not be adequately prevented. METHODS: A total of 13 temporal bones were dissected to quantify where the labyrinthine portion of the facial nerve is closest to the scala tympani, the placement site of the cochlear implantation electrode array. After the typical operative procedures to find out the number of electrodes lying closest to the facial nerve were performed, a cochlear implantation array was inserted into four specimens. The clinical records of 14 otosclerotic patients were investigated to correlate these results with the position of in vivo deactivated electrodes. RESULTS: Theclosest distance between the scala tympani and the nerve was only 0.33 mm (+/-0.14). On average, after insertion of 23 electrode resp. marking rings, the facial nerve was reached. This is clinically the position of most frequently deactivated electrodes to prevent postoperative facial nerve costimulation. CONCLUSIONS: These investigations support the hypothesis that a direct current spread at the site of the facial nerve crossing the cochlear basal turn is most likely the reason for postoperative facial muscle twitching facilitated in otospongiotic bone. Prevention could therefore be achieved by cochlear implantation designs and surgical techniques that take into consideration the site of closest contact.
机译：假设：阐明在人工耳蜗植入后面神经共刺激的可能机制，这可能是由于耳蜗与面神经的紧密接触所致。背景：耳蜗植入术后并发症之一是面部肌肉抽搐，这在耳硬化症患者中尤为常见。由于电极的失活，它会损害听力，并且仍然不能得到充分的预防。方法：解剖总共13块颞骨，以量化面神经的迷宫式部分最靠近鼓ala的位置，即耳蜗植入电极阵列的放置位置。在执行典型的手术程序以找出最靠近面神经的电极数量之后，将耳蜗植入阵列插入四个标本中。调查了14名耳硬化症患者的临床记录，以将这些结果与体内失活电极的位置相关联。结果：鼓sc与神经之间的最近距离仅为0.33 mm（+/- 0.14）。平均而言，插入23个电极后。标记环响起，达到了面神经。这是临床上最常停用的电极的位置，以防止术后面神经共刺激。结论：这些研究支持这样的假说，即在耳蜗基底转弯的面神经横穿耳蜗基底转角的部位扩散的直流电流很可能是术后在听神经骨内抽搐的原因。因此，可以通过考虑到最紧密接触部位的人工耳蜗植入设计和手术技术来实现预防。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号