van der Marel Kim S, Briaire Jeroen J, Verbist Berit M, Muurling Tjeerd J, Frijns Johan H M
Department of Otorhinolaryngology, Leiden University Medical Center, Leiden, The Netherlands.
Audiol Neurootol. 2015;20(3):202-11. doi: 10.1159/000377616. Epub 2015 Apr 28.
To study the relation between variables related to cochlear implant electrode position and speech perception performance scores in a large patient population.
The study sample consisted of 203 patients implanted with a CII or HiRes90K implant with a HiFocus 1 or 1J electrode of Advanced Bionics. Phoneme and word score averages for the 1- and 2-year follow-up were calculated for 41 prelingually deaf and 162 postlingually deaf patients. Analyses to reveal correlations between these performance outcomes and 6 position-related variables (angle of most basal electrode contact, surgical insertion angle, surgical insertion, wrapping factor, angular insertion depth, linear insertion depth) were executed. The scalar location, as an indication for the presence of intracochlear trauma, and modiolus proximity beyond the basal turn were not evaluated in this study. In addition, different patient-specific variables (age at implantation, age at onset of hearing loss, duration of deafness, preoperative phoneme and word scores) were tested for correlation with performance.
The performance scores of prelingual patients were correlated with age at onset of hearing loss, duration of deafness and preoperative scores. For the postlingual patients, performance showed correlations with all 5 patient-specific variables. None of the 6 position-related variables influenced speech perception in cochlear implant patients.
Although several patient-specific variables showed correlations with speech perception outcomes, not one of the studied angular and linear position-related variables turned out to have a demonstrable influence on performance.
在大量患者群体中研究与人工耳蜗电极位置相关的变量与言语感知性能评分之间的关系。
研究样本包括203例植入了CII或HiRes90K植入体以及Advanced Bionics公司HiFocus 1或1J电极的患者。计算了41例语前聋患者和162例语后聋患者1年和2年随访时的音素和单词评分平均值。进行分析以揭示这些性能结果与6个位置相关变量（最基底电极接触角度、手术插入角度、手术插入、包裹因子、角度插入深度、线性插入深度）之间的相关性。本研究未评估作为蜗内创伤指标的标量位置以及基底转之外的蜗轴接近度。此外，还测试了不同的患者特异性变量（植入时年龄、听力损失起始年龄、耳聋持续时间、术前音素和单词评分）与性能的相关性。
语前患者的性能评分与听力损失起始年龄、耳聋持续时间和术前评分相关。对于语后患者，性能与所有5个患者特异性变量相关。6个位置相关变量均未影响人工耳蜗患者的言语感知。
尽管几个患者特异性变量与言语感知结果相关，但所研究的角度和线性位置相关变量中没有一个对性能有明显影响。
