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Disfonía espasmódica - Overview

Definición:

Consiste en la dificultad para hablar debido a los espasmos (distonía) de los músculos que controlan las cuerdas vocales.

Causas, incidencia y factores de riesgo:

En el pasado, se pensaba que la disfonía espasmódica era causada por un problema psicológico en lugar de un problema físico. Sin embargo, muchas personas ahora creen que esto ocurre a raíz de un problema en el cerebro y el sistema nervioso. Los músculos de las cuerdas vocales se contraen, provocando que éstas se acerquen o se separen demasiado mientras que las personas con la afección están usando su voz.

La disfonía espasmódica por lo regular ocurre entre las edades de 30 y 51 años y las mujeres son más propensas a resultar afectadas que los hombres.

Sistema nervioso central

Reviewed last on: 6/16/2010
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Goetz CG, ed. Textbook of Clinical Neurology. 3rd ed. Philadelphia, PA: Saunders Elsevier; 2007:chap 13.

Blitzer A, Alexander RE, Grant NN. Neurologic disorders of the larynx. In: Cummings CW, Flint PW, Haughey BH, et al, eds. Otolaryngology: Head & Neck Surgery. 5th ed. Philadelphia, Pa: Mosby Elsevier;2010:chap 60.

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