在高频听力损失中通过用更长电极的电声刺激增强耳覆盖和听力保护
Hidekane Yoshimura1, Yutaka Takumi1, Shin-Ya Nishio2
1Department of Otorhinolaryngology - Head and Neck Surgery, Shinshu University School of Medicine.
Journal of visualized experiments : JoVE
|October 28, 2024
概括
使用较长电极的电声刺激 (EAS) 可以在患有高频听力损失的患者中保持听力. 这种方法为未来的听力保护和改善声音感知提供了好处.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 神经外科 神经外科
- 生物医学工程 生物医学工程
背景情况:
- 电声刺激 (EAS) 是高频听力损失的关键治疗方法.
- 传统上,在EAS手术中,为了保护残留听力,更短的电极更受青.
- 以前的研究表明,较长的电极 (28毫米) 不会损害,甚至可能增强听力保护 (HP).
研究的目的:
- 评估在EAS手术中使用较长电极的疗效和安全性.
- 为了证明更长的电极可以保持声学听力,并为未来的听力管理提供优势.
- 概述了使用更长EAS电极成功保护听力的外科手术程序和因素.
主要方法:
- 对使用较长电极的EAS手术的手术前,手术内和手术后手术的审查.
- 对影响听力保护的因素的分析,包括术前评估,手术技术,电极类型和类固醇的使用.
- 与现有文献进行比较,并对电极长度和听力保护进行系统审查.
主要成果:
- 较长的EAS电极 (28毫米) 有效地保护了声学听力.
- 听力保护得分不会因电极长度增加而受到负面影响.
- 用更长的电极覆盖更广泛的耳,有助于更好地匹配位置和音调,并适应未来的听力恶化.
结论:
- 用更长的电极进行EAS手术对于患有高频听力损失的患者来说是一个可行的选择.
- 精心进行手术规划,包括少入侵的技术和适当的医疗管理,对于最佳的听力结果至关重要.
- 更长的电极为未来的听力康复策略和改善患者管理提供了灵活性.
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相关概念视频
Hair Cells
Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
The Cochlea
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
Echo
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case, then the...
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case, then the...
Auditory Pathway
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
