Acta Otorrinolaringol Esp. 2012;63(6):458---464 www.elsevier.es/otorrino ORIGINAL ARTICLE Laryngeal Electromyography in Diagnosis and Treatment of Voice Disorders  Isabel García-López, a,* Susana Santiago-Pérez, b Julio Pe˜ narrocha-Teres, a Antonio J. del Palacio, a Javier Gavilan a a Servicio de Otorrinolaringología, Hospital Universitario La Paz, Madrid, Spain b Servicio de Neurofisiología Clínica, Hospital Universitario La Paz, Madrid, Spain Received 6 March 2012; accepted 3 May 2012 KEYWORDS Electromyography; Larynx; Dysphonia Abstract Introduction and objectives: Laryngeal electromyography, together with clinical evaluation, is a valuable tool for voice disorder management. It assesses the integrity of laryngeal nerves and muscles, contributing to the diagnosis of many diseases, especially laryngeal movement disorders. Our purpose was to describe the experience of the first Spanish series with laryngeal electromyography in evaluating voice disorders. Methods: A prospective study was designed to evaluate laryngeal movement disorders with laryngeal electromyography. Both the cricothyroid and thyroarytenoid muscles were tested rou- tinely and, in some cases, the posterior cricoarytenoid muscle. The laryngeal electromyography technique and result interpretation were performed by a laryngologist and a neurophysiologist. Results: We included 110 patients, with the most common symptom being dysphonia. Laryngeal electromyography was performed in 85% of cases. Primary diagnosis before electromyography was laryngeal immobility. Positive predictive value for diagnosis in cases of paralysis was 88%. Conclusions: Laryngeal electromyography is a useful adjunct, together with clinical evaluation, for diagnosis and management of motion abnormalities in the larynx in patients who present with dysphonia. © 2012 Elsevier España, S.L. All rights reserved. PALABRAS CLAVE Electromiografía; Laringe; Disfonía Electromiografía laríngea en el diagnóstico y tratamiento de los trastornos de la voz Resumen Introducción y objetivos: La electromiografía laríngea es una herramienta útil en el diagnóstico y tratamiento de los trastornos de la voz. Proporciona información acerca del estado de los nervios y músculos laríngeos completando la evaluación diagnóstica de un gran número de afecciones, fundamentalmente los trastornos del movimiento laríngeo. Presentamos la primera  Please cite this article as: García-López I, et al. Electromiografía laríngea en el diagnóstico y tratamiento de los trastornos de la voz. Acta Otorrinolaringol Esp. 2012;63:458---64. ∗ Corresponding author. E-mail address: igarcilopez@yahoo.es (I. García-López). 2173-5735/$ – see front matter © 2012 Elsevier España, S.L. All rights reserved.