Scalar Localization of Cochlear Implant Electrode Array in Hearing Preservation Patients Using 64 Slice CT
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- Mayo Clinic
- 入组人数
- 5
- 试验地点
- 1
- 主要终点
- The aim of our study is to determine surgical placement of the short electrode of cochlear implants in patients with high frequency loss.
研究概览
简要总结
Insertion of electrode array in scala vestibuli, rather than the preferred location within scala tympani, leads to loss of native hearing in those patients with isolated high-frequency hearing loss undergoing cochlear implantation.
详细描述
We aim to determine the surgical placement in patients with high frequency who had long electrode array insertions because they did not meet audiometric criteria for short array devices.
From this basis we will be able to determine if suboptimal insertion (e.g., in the scala vestibuli) leads to loss of low-frequency hearing in these patients. We also will look at the possibilities of using this data in predicting outcomes, modifying implant design, and perfecting surgical technique.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 8 Years 至 100 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Registered in the Cochlear Implant Database.
- •Patient has short or long electrode cochlear implant for high frequency hearing loss.
排除标准
- •Inability to provide consent.
- •Patients with underlying otospongiosis, extensive labyrinthitis ossificans or cochlear dysplasia. (These patients would have been identified with pre-operative imaging prior to cochlear implantation).
结局指标
主要结局
The aim of our study is to determine surgical placement of the short electrode of cochlear implants in patients with high frequency loss.
时间窗: Two years
次要结局
- Determine the surgical placement in patients with high frequency who had long electrode array insertions because they did not meet audiometric criteria for short array devices.(Two Years)
研究者
John Lane
Professor of Radiology, College of Medicine
Mayo Clinic