Department of Otolaryngology-Head and Neck Surgery, Drexel University College of Medicine, Philadelphia, Pennsylvania 19103, USA.
J Voice. 2010 Mar;24(2):228-34. doi: 10.1016/j.jvoice.2008.08.005. Epub 2008 Dec 25.
Laryngeal electromyography (LEMG) is a valuable adjunct in clinical management of patients with voice disorders. LEMG is valuable in differentiating vocal fold paresis/paralysis from cricoarytenoid joint fixation. Our data indicate that visual assessment alone is inadequate to diagnose neuromuscular dysfunction in the larynx and that diagnoses based on vocal dynamics assessment and strobovideolaryngoscopy are wrong in nearly one-third of cases, based on LEMG results. LEMG has also proven valuable in diagnosing neuromuscular dysfunction in some dysphonic patients with no obvious vocal fold movement abnormalities observed during strobovideolaryngoscopy. Review of 751 patients suggests that there is a correlation between the severity of paresis and treatment required to achieve satisfactory outcomes; that is, LEMG allows us to predict whether patients will probably require therapy alone or therapy combined with surgery. Additional evidence-based research should be encouraged to evaluate efficacy further.
喉肌电图（LEMG）是一种有价值的辅助手段，可用于管理嗓音障碍患者。LEMG 有助于区分声带无力/麻痹与环杓关节固定。我们的数据表明，仅凭肉眼评估不足以诊断喉内的神经肌肉功能障碍，而且根据 LEMG 结果，基于声动力学评估和频闪喉镜检查的诊断在近三分之一的病例中是错误的。LEMG 还在一些无明显声带运动异常的发音困难患者中诊断神经肌肉功能障碍方面证明是有价值的。对 751 例患者的回顾表明，无力的严重程度与实现满意效果所需的治疗之间存在相关性；也就是说，LEMG 使我们能够预测患者是否可能仅需要单独治疗或联合治疗。应鼓励开展更多基于证据的研究以进一步评估疗效。
