声带振动体被覆层病变对声带振动模式影响的探讨

目的 探讨声带振动体被覆层病变对声带振动模式的影响。方法 对５０例成人声带息肉患者手术前和术后５￣７天进行了电视录像硬管望远喉动态镜观察和电声门图检测。结果 声带的振动模式随声带息肉的基底、形态、体积及单双侧的不同而变化，同时其振动参数及电声门图出现相应的变化、所有声带息肉均不同程度地影响声带振动规则性、振幅（ＡＭＰ）、声门闭合度（ＧＬＯ）及粘膜波动度（ＭＵＣ）、单侧息肉影响对称性（ＳＹＭ）显著，

The influence of changes in vocal cords' cover-body on their vibratory pattern]

OBJECTIVE: To discuss the influence of changes in vocal cords' cover-body on their vibratory pattern. METHODS: Fifty adult patients with vocal polyps were observed by telescopic videolaryngostroboscopy and detected by electroglottography (EGG). We examined the vocal cords' vibratory pattern according to laryngostroboscopic image and discussed the change of vocal cords' vibratory parameters and EGG curves. RESULTS: The vocal cords' vibratory parameters and EGG curves changed with different vocal polyps. All vocal polyps affect the regularity(REG), amplitude (AMP), glottal closure(GLO) and mucosal wave(MUC) of laryngostroboscopic image; the symmetry(SYM), REG and GLO bore linear correlation to the notches in EGG curves, the REG and MUC bore linear correlation to the steep changes; micro-polyps with pedicles reduced the vibratory parameters CQ and F0, the main abnormalities were notches in EGG curves; the changes in macro-polyps with pedicles were the same as the micropolyps except increased CQ. All vocal polyps with wide bases either single or bilateral, had increased CQ and F0, the main abnormalities were steep in contact opening phase and flat in wave peak. CONCLUSIONS: Studies with laryngostroboscopy and EGG revealed how the vocal polyps affected vocal cords' cover-body, changed the vibratory pattern of vocal cords, and factors regulating vocal cords' vibratory pattern.