Investigation of Human Laryngeal Evoked Brainstem Potentials
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 14
- 试验地点
- 1
- 主要终点
- analysis of variance in brain auditory evoked response (BAER) measured using recording electroencephalography electrodes
研究概览
简要总结
The primary purpose of this study will be to determine whether the proposed study protocol will allow for reliable detection of the human Laryngeal evoked brainstem responses (LEBR). Laryngeal evoked brain stem responses will be recorded from five test subjects under general anesthesia in the operating room with the assistance of an electrophysiologist with expertise in evoked potentials. Once the feasibility of obtaining tracings are established on the first few subjects, responses will be recorded from other test subjects with the aim of determining the optimal placement of stimulating electrodes and detection leads necessary to elicit an adequate response. The effect of varying the stimulus intensity will also be studied. Once parameters for testing have been standardized, normative configurations for the laryngeal evoked brainstem response tracings can be determined by patients both in the office setting and in the operating room.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy Subjects undergoing thyroid or other open neck surgeries
排除标准
- •Current or recent (within one month) tracheostomy
- •Vocal cord paralysis
- •History of Stroke
- •History of Diabetes Mellitus
- •History of Neurologic Disease
- •History of Radiation to the Neck
- •History of Brain Surgery
- •History of Neck Surgery
- •Recent Laryngeal Surgery (within one month)
- •Recent Intubation (within two weeks)
- •Laryngopharyngeal Reflux Disease
- •Allergy to Lidocaine
- •Allergy to Oxymetazoline
研究组 & 干预措施
Planned Procedure
Endoscope will be connected to a camera and monitor. Needle electrodes will then be positioned into the false vocal fold mucosa bilaterally, under direct visualization of the needle tip on the monitor, but the needles will be passed trans-orally in the operating room. For those participating during an open-neck surgery, the surgery will commence as planned and once exposure of the superior laryngeal nerve is obtained, the surgeon will insert the electrodes directly into the nerve trunk for the purposes of recording. In Surgery or cervical lymphadenectomy, the electrode will be placed at a superficial depth and needle placement will be performed with one on each side at a location approximately mid-fold.
干预措施: Placement of a needle electrode through the thyrohyoid membrane into the submucosal space within the false vocal fold (Procedure)
Routine Laryngoscopy
Nasolaryngoscopy will be performed in the office in the standard fashion with the use of oxymetazoline for topical decongestion of the nasal mucosa, In both settings, the electrode will be placed at a superficial depth and needle placement will be performed with one on each side at a location approximately mid-fold
干预措施: Placement of a needle electrode through the thyrohyoid membrane into the submucosal space within the false vocal fold (Procedure)
结局指标
主要结局
analysis of variance in brain auditory evoked response (BAER) measured using recording electroencephalography electrodes
时间窗: One Year
Distributions of latencies within this group will be examined to evaluate the appropriateness of standard assumptions regarding normality and constant variance, and transformations or non-parametric statistics will be considered as needed.
次要结局
未报告次要终点