Department of Otolaryngology - Head and Neck Surgery.
Department of Communication Sciences and Disorders, University of Iowa, Iowa City, Iowa.
Otol Neurotol. 2019 Mar;40(3):e267-e276. doi: 10.1097/MAO.0000000000002124.
The goal of this investigation was to determine if a short electrode in one ear and standard electrode in the contralateral ear could be an option for infants with congenital profound deafness to theoretically preserve the structures of the inner ear. Similarities in performance between ears and compared with a control group of infants implanted with bilateral standard electrodes was evaluated.
Repeated-measure, single-subject experiment.
University of Iowa-Department of Otolaryngology.
Nine infants with congenital profound bilateral sensorineural hearing loss.
INTERVENTION(S): Short and standard implants.
MAIN OUTCOME MEASURE(S): Early speech perception test (ESP), children's vowel, phonetically balanced-kindergarten (PB-K) word test, and preschool language scales-3 (PLS-3).
ESP scores showed performance reaching a ceiling effect for the individual short and standard ears and bilaterally. The children's vowel and PB-K word results indicated significant (both p < 0.001) differences between the two ears. Bilateral comparisons to age-matched children with standard bilateral electrodes showed no significant differences (p = 0.321) in performance. Global language performance for six children demonstrated standard scores around 1 standard deviation (SD) of the mean. Two children showed scores below the mean, but can be attributed to inconsistent device usage. Averaged total language scores between groups showed no difference in performance (p = 0.293).
The combined use of a short electrode and standard electrode might provide an option for implantation with the goal of preserving the cochlear anatomy. However, further studies are needed to understand why some children have or do not have symmetric performance.
本研究旨在探讨在一侧耳使用短电极、对侧耳使用标准电极是否可行，以期在理论上保留先天性极重度聋婴儿内耳结构。评估了双侧使用标准电极的植入婴儿与该方法之间的相似性能，并与对照组进行了比较。
重复测量、单个体实验。
爱荷华大学耳鼻喉科。
9 名先天性双侧感觉神经性听力损失的婴儿。
短电极和标准电极植入。
早期言语感知测试（ESP）、儿童元音、语音平衡幼儿园（PB-K）单词测试和学前语言量表-3（PLS-3）。
ESP 评分显示，个体短电极和标准电极以及双侧电极的表现均达到了上限。儿童元音和 PB-K 单词测试结果表明，双耳之间存在显著差异（均 p<0.001）。双侧与使用标准双侧电极的年龄匹配儿童进行比较，其表现无显著差异（p=0.321）。六名儿童的整体语言表现为标准分数接近平均值的一个标准差。两名儿童的得分低于平均值，但这可以归因于设备使用不一致。组间平均总语言评分无表现差异（p=0.293）。
短电极和标准电极的联合使用可能为植入提供一种选择，以达到保护耳蜗解剖结构的目的。然而，需要进一步研究来理解为什么有些儿童的表现是对称的，而有些则不是。
