Partial Deafness Cochlear Implantation at the University of Kansas: Techniques and Outcomes
Partial Deafness Cochlear Implantation at the University of Kansas: Techniques and Outcomes
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DOI：
10.3766/jaaa.21.3.8
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发表时间：
2010-03-01
影响因子：
1.2
通讯作者：
Staecker, Hinrich
中科院分区：
文献类型：
--
作者：
Prentiss, Sandra;Sykes, Kevin;Staecker, Hinrich
背景：人工耳蜗植入术最重要的最新进展之一是植入有残余听力的患者。这些患者有一个下降的感觉神经性听力损失，言语辨别力差，在标准放大下表现不佳。使用各种不同电极设计的研究表明，植入内耳并保留残余听力是可能的。初步研究表明，低频残余声听力与中高频电刺激相结合，可以在背景噪音中获得上级听力表现。目的：本研究的目的是确定电极插入深度对听力保护的影响。研究样本：18名在低频有轻度到重度听力损失并伴有单词识别能力差的患者被招募参加这项研究。干预措施：耳蜗植入。数据收集和分析：术前和术后听力测试，噪声中听力测试，以及辅音-核-辅音测试。Kruskal沃利斯和曼-惠特尼testing.Results：在我们的研究植入了Med-EI PulsarCI 100的18例患者中，我们证明了植入物插入深度范围为20至28 mm，保留残余听力的能力，使我们有可能接近完整的耳蜗频率覆盖的植入阵列，同时保留残余听力。这些患者表现良好，在安静和10 dB的信噪比conditions.Conclusion：听力保护是可以实现的，即使与深种植体插入。患者在声电联合条件下表现良好。
Background: One of the most significant recent advances in cochlear implantation is the implantation of patients with residual hearing. These patients have a downsloping sensorineural hearing loss with poor speech discrimination and perform poorly with standard amplification. Studies using a variety of different electrode designs have demonstrated that it is possible to implant an inner ear and preserve residual hearing. Initial studies have demonstrated that a combination of residual acoustic hearing in the low frequencies with electrical stimulation in the mid- to high frequencies resulted in superior hearing performance in background noise.Purpose: The objective of this study was to determine the effect of electrode insertion depth on hearing preservation.Study Sample: Eighteen patients with mild to severe hearing loss in the low frequencies combined with poor word recognition were recruited for the study.Intervention: Cochlear implantation.Data Collection and Analysis: Pre- and postoperative hearing test, Hearing in Noise Test, and consonant-nucleus-consonant testing. Data analysis was performed with Kruskal Wallis and Mann-Whitney testing.Results: In our study of 18 patients implanted with a Med-EI PulsarCI100 we demonstrated the ability to preserve residual hearing with implant insertion depths ranging from 20 to 28 mm, giving us the possibility of near complete cochlear frequency coverage with an implant array while preserving residual hearing. These patients performed well both in quiet and in 10 dB signal-to-noise ratio conditions.Conclusion: Hearing preservation was achievable even with deep implant insertion. Patients performed well in combined acoustic and electric conditions.