Von Doersten P G, Izdebski K, Ross J C, Cruz R M
Department of Otolaryngology, Kaiser Permanente Medical Center, Oakland, CA 94611-5693.
Laryngoscope. 1992 Nov;102(11):1296-301. doi: 10.1288/00005537-199211000-00018.
Ventricular dysphonia is a poorly understood disorder involving ventricular fold participation during phonation. A population of ventricular dysphonia patients was evaluated using phonatory function studies such as laryngovideostroboscopy, advanced acoustic analysis, and electroglottography to identify shared epidemiologic characteristics and to discuss possible neuromuscular mechanisms and causes. Forty patients with ventricular dysphonia were studied and epidemiologic, acoustic, and histologic data were analyzed. In almost all cases, the authors found abnormalities affecting the glottis caused by a related medical condition. The abnormalities included true vocal cord (TVC) aperiodicity in 100% of the patients, TVC asymmetry in 65%, a laryngeal mass or foreign body (usually Teflon) in 35%, TVC erythema or edema in 32.5%, and TVC bowing in 22.5%. Ventricular dysphonia seems to be primarily a compensatory mechanism for glottic dysfunction. Therapy is based on identifying and correcting the underlying abnormalities. Laryngovideostroboscopy is a particularly important tool in examining chronic dysphonia.
室性发音障碍是一种了解甚少的疾病，涉及发声时室襞的参与。使用诸如喉动态镜检查、先进声学分析和电声门图等发声功能研究对一组室性发音障碍患者进行评估，以确定共同的流行病学特征，并探讨可能的神经肌肉机制和病因。对40例室性发音障碍患者进行了研究，并分析了流行病学、声学和组织学数据。在几乎所有病例中，作者发现由相关疾病引起的影响声门的异常。这些异常包括100%的患者声带（TVC）无周期性、65%的患者TVC不对称、35%的患者有喉部肿物或异物（通常为聚四氟乙烯）、32.5%的患者TVC红斑或水肿以及22.5%的患者TVC弓形。室性发音障碍似乎主要是声门功能障碍的一种代偿机制。治疗基于识别和纠正潜在异常。喉动态镜检查是检查慢性发音障碍的一种特别重要的工具。
