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Pathophysiological Study on Phonatory Function after Phonosurgery

声音手术后发声功能的病理生理学研究

基本信息

批准号：
08457449
负责人：
NIIMI Seiji
金额：
$ 2.37万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08457449/
关键词：
High speed digital imaging system Partial laryngectomy Vocal fold vibration Spasmodic dysphonia Dysphagia Dysphonia in children 小児の音声言語障害声帯振動音声障害音声外科二重声嚥下声門下圧

项目摘要

In this project, the high speed digital imaging system has been developed and can be used to evaluate the vocal folds function of the patient. The sound source of the partial laryngectomized patient was investigated to find that the ary-epiglottic fold can vibrate to generate the voice. This finding gives us a new idea to improve the voice quality to the post operative patient.By using the high speed digital imaging system, some causative factors of the voice disorders have been clarified. Especially, the mode of the onset of the phonation has an effect not only at the beginning of the phonation but at the following stationary phonation. It means that the voice attack should be one of the most important factor for the vocal hyginene. This also provides the new knowledge to make a clinical program of the rehabilitation after phonosurgery.Recently, the number of the patients with functional dysphonia tends to be increasing especially, among the professional voice users. Spasmodic dysphonia is one of the functional dysphonia which is difficult to treat. We have been using the botulinum toxin. Vocal fold vibration, psychoacoustic impression and acoustic parameters were evaluated pre and post treatment. The neurological back ground as an etiologic factor was strongly suggested.Swallowing function after phonosurgery was also evaluated. It becomes clear that the phonatory function and the swallowing function improves together.Voice and speech disorders in the children are important from educational point of view as well as medical point of view. We have started a pilot study to find out the evaluation system for the voice and speech disorders in children.

本课题研制了一套高速数字成像系统，可用于评价声带功能。对喉部分切除患者的声源进行了调查，发现患者的杓会厌襞可以振动发声。这一发现为改善术后患者的嗓音质量提供了一种新的思路，并利用高速数字成像系统，对术后患者嗓音障碍的原因进行了分析。特别是，发声的起始模式不仅在发声开始时而且在随后的静止发声中具有影响。这说明嗓音攻击是影响嗓音卫生的重要因素之一。近年来，功能性发声障碍患者的数量有增加的趋势，尤其是在专业发声者中。痉挛性发声障碍是一种较难治疗的功能性发声障碍，我们一直使用肉毒杆菌毒素治疗。治疗前后对声带振动、心理声学印象及声学参数进行评价。神经系统的背景是一个强烈的病因。吞咽功能术后的声音也进行了评估。很明显，发音功能和吞咽功能是共同提高的。从教育的角度和医学的角度来看，儿童的语音和言语障碍是重要的。我们已经开始了一项试点研究，以找出评估系统的声音和语言障碍的儿童。