Lu F L, Casiano R R, Lundy D S, Xue J W
Department of Otolaryngology, University of Miami School of Medicine, Florida 33101, USA.
Laryngoscope. 1996 May;106(5 Pt 1):573-7. doi: 10.1097/00005537-199605000-00010.
This study investigated longitudinal changes of vocal efficiency and stability after primary thyroplasty type 1. Fifty-three patients with unilateral vocal-fold paralysis underwent vocal-function evaluation preoperatively and at periodic intervals of 1, 3, and 6 months postoperatively. Vocal-function assessment included videostrobolaryngoscopic examination, acoustical and aerodynamic analysis, and perceptual judgment of voice characteristics. Parameters that included glottic-gap size, maximum phonation time, glottic-flow rate, jitter, harmonic/noise ratio, breathiness, hoarseness, loudness, and phrasing showed significant improvement after thyroplasty and remained stable as early as 1 month postoperatively, with only slight fluctuations over a 6-month period. Postoperative voice outcome was not affected by age, sex, duration of vocal symptoms, cause of paralysis, or preoperative pulmonary function.
本研究调查了Ⅰ型初次甲状成形术后嗓音效率和稳定性的纵向变化。53例单侧声带麻痹患者在术前以及术后1、3和6个月的定期时间点接受了嗓音功能评估。嗓音功能评估包括频闪喉镜视频检查、声学和空气动力学分析以及嗓音特征的感知判断。包括声门间隙大小、最长发声时间、声门流速、抖动、谐波/噪声比、气息声、嘶哑、响度和 phrasing 在内的参数在甲状成形术后有显著改善，并且早在术后1个月就保持稳定，在6个月期间仅有轻微波动。术后嗓音结果不受年龄、性别、嗓音症状持续时间、麻痹原因或术前肺功能的影响。
