Green D C, Berke G S, Ward P H
Division of Head and Neck Surgery, University of California-Los Angeles 90024.
Ann Otol Rhinol Laryngol. 1991 Apr;100(4 Pt 1):280-7. doi: 10.1177/000348949110000404.
There are a variety of methods for treating unilateral vocal cord paralysis, but to date there have been few studies that compare these phonosurgical techniques by using objective measures of voice improvement. Vocal efficiency is an objective voice measure that is defined as the ratio of the acoustic power produced by the larynx to the subglottic air power. Vocal efficiency has been found to decrease with glottic disorders such as vocal cord paralysis and carcinoma. This study compared the effects of vocal fold medialization by surgical augmentation to those of arytenoid adduction on the vocal efficiency, videostroboscopy, and acoustics (jitter, shimmer, and signal-to-noise ratio) of a simulated unilateral vocal cord paralysis in an in vivo canine model. Arytenoid adduction was superior to surgical augmentation in vocal efficiency, traveling wave motion, and acoustics.
治疗单侧声带麻痹有多种方法，但迄今为止，很少有研究通过使用客观的嗓音改善指标来比较这些嗓音外科技术。嗓音效率是一种客观的嗓音指标，定义为喉部产生的声功率与声门下气流功率之比。已发现嗓音效率会随着声门疾病（如声带麻痹和癌症）而降低。本研究在体内犬模型中，比较了手术增强声带内移术与杓状软骨内收术对模拟单侧声带麻痹的嗓音效率、频闪喉镜检查和声学指标（抖动、闪烁和信噪比）的影响。在嗓音效率、行波运动和声学方面，杓状软骨内收术优于手术增强声带内移术。
