Kirtane Milind V, More Yogesh I, Mankekar Gauri, Mohandas Nishita, Patadiya Rajesh
Indian J Otolaryngol Head Neck Surg. 2011 Jul;63(3):237-42. doi: 10.1007/s12070-011-0153-6. Epub 2011 Feb 24.
To study the outcomes of split electrode array cochlear implantation in ossified cochlea using the CAP scoring system. Retrospective case study. Tertiary referral center. Six cochleae in three adult and three pediatric patients with ossification.
INTERVENTION(S): All Patients underwent cochlear implantation with a split electrode array system. Major outcome parameter(s): Number of electrodes inserted during surgery, number of functioning electrodes on follow-up and auditory performance evaluation using the CAP score-Category of Auditory Perception [TSC Revised Version, based on Nottingham CI Program, 1995]. Six patients (three children and three adults) had insertion of split electrode array system. The mean number of electrodes inserted were 18.3 (range 15-21) and functioning electrodes at follow-up were mean of 14.3 (range 7-21). Auditory performance was measured using CAP score at 1 year post implant follow up, mean score in children was six and that in adult was eight. One pt had facial nerve twitching which was corrected by switching off the concerned electrode. No complications in sort of facial palsy or vestibular disorder were observed. Patients of ossified cochlea having profound deafness do well with split electrode array cochlear implantation as evaluated with CAP scoring system. The split electrode array results in more number of electrodes within the cochlear lumen. Retro graded apical array insertion has less chances of facial nerve stimulation as it is placed away from the nerve.
使用CAP评分系统研究在骨化耳蜗中植入分体电极阵列人工耳蜗的效果。回顾性病例研究。三级转诊中心。3名成年患者和3名儿科患者的6个耳蜗存在骨化。
所有患者均接受了分体电极阵列系统的人工耳蜗植入。主要结局参数：手术中插入的电极数量、随访时功能正常的电极数量以及使用CAP评分（听觉感知类别[TSC修订版，基于诺丁汉人工耳蜗项目，1995年]）进行的听觉性能评估。6名患者（3名儿童和3名成人）植入了分体电极阵列系统。插入电极的平均数量为18.3（范围15 - 21），随访时功能正常的电极平均数量为14.3（范围7 - 21）。在植入后1年的随访中使用CAP评分测量听觉性能，儿童的平均评分为6分，成人的平均评分为8分。1例患者出现面神经抽搐，通过关闭相关电极得以纠正。未观察到面瘫或前庭障碍等并发症。使用CAP评分系统评估发现，患有严重耳聋的骨化耳蜗患者通过分体电极阵列人工耳蜗植入效果良好。分体电极阵列可使耳蜗腔内的电极数量更多。逆向分级的顶端阵列插入因远离神经，面神经受刺激的几率较小。
