Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University, Nashville, Tennessee.
Otol Neurotol. 2018 Dec;39(10):e992-e995. doi: 10.1097/MAO.0000000000002028.
To describe and characterize facial nerve stimulation (FNS) patterns in patients with labyrinthitis ossificans who underwent cochlear implantation (CI) for sensorineural hearing loss.
Five ears in four patients with labyrinthitis ossificans who underwent CI and subsequently developed FNS.
CI, electrode mapping, and/or explantation to resolve FNS.
FNS, postoperative computed tomography imaging, and resolution of FNS.
Fourteen ears with labyrinthitis ossificans underwent CI over an 11-year period at a single institution; 5 of these ears exhibited postoperative FNS (35.7% incidence). Four cases had involvement of basal electrodes, while all five cases had middle and/or apical electrode stimulation. All cases had resolution of FNS with CI reprogramming, however, the resultant map in two cases provided minimal audiologic benefit and patients became nonusers in that ear.
FNS arising from all cochlear regions is possible in patients with labyrinthitis ossificans who undergo CI. Mapping and electrode deactivation can resolve symptoms, but resultant audiologic benefit is variable and may lead to explantation.
描述并分析因耳硬化症行人工耳蜗植入（CI）后出现面神经刺激（FNS）的患者的 FNS 模式，这些患者均患有感音神经性听力损失。
4 名患者的 5 只耳朵患有耳硬化症，这些患者均接受了 CI，并随后出现 FNS。
CI、电极定位图和/或取出电极以解决 FNS。
FNS、术后计算机断层扫描成像和 FNS 的缓解情况。
在 11 年的时间里，一家机构对 14 只患有耳硬化症的耳朵进行了 CI，其中 5 只耳朵在术后出现了 FNS（发生率为 35.7%）。有 4 例基底电极受累，而所有 5 例均有中间和/或顶端电极刺激。所有病例均通过重新编程 CI 来解决 FNS，但在 2 例中，定位图提供的助听效果有限，患者在该耳失用。
患有耳硬化症并接受 CI 的患者可能会出现来自耳蜗各个区域的 FNS。通过映射和电极失活可以缓解症状，但听力获益的结果是可变的，并且可能导致电极取出。
