Omori K, Slavit D H, Kacher A, Blaugrund S M
Ames Vocal Dynamics Laboratory, Lenox Hill Hospital, New York.
Laryngoscope. 1996 Jun;106(6):689-93. doi: 10.1097/00005537-199606000-00006.
The purpose of this study was to ascertain the relation between preoperative glottal gap and postoperative vocal function in thyroplasty type I. Twenty-two of 64 patients who underwent thyroplasty type I between 1987 and 1994 were studied. In preoperative digitized laryngostroboscopic images, the glottal-gap, width (GGW), shape, and area were examined at the maximum closure of vibration and normalized by membranous vocal-fold length (MVFL). Postoperative vocal function analysis was performed with aerodynamic and acoustic measurements and compared with preoperative videostroboscopic images. In patients with preoperative posterior GGW of less than 10% of MVFL, postoperative vocal function was significantly better than in other patients. Although thyroplasty type I is an excellent medialization technique, it may need to be combined with a posterior closure procedure in patients with large posterior gaps.
本研究的目的是确定Ⅰ型甲状软骨成形术中术前声门间隙与术后嗓音功能之间的关系。对1987年至1994年间接受Ⅰ型甲状软骨成形术的64例患者中的22例进行了研究。在术前数字化喉动态镜图像中，在振动最大闭合时检查声门间隙、宽度（GGW）、形状和面积，并通过膜性声带长度（MVFL）进行标准化。术后通过空气动力学和声学测量进行嗓音功能分析，并与术前视频动态镜图像进行比较。术前GGW后间隙小于MVFL 10%的患者，术后嗓音功能明显优于其他患者。虽然Ⅰ型甲状软骨成形术是一种出色的内移技术，但对于后间隙较大的患者，可能需要联合后部闭合手术。
