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El asma es una enfermedad en la cual la inflamación de las vías aéreas causa que se restrinja el flujo de aire hacia adentro y afuera de los pulmones. Los músculos del árbol bronquial se estrechan y se inflama el recubrimiento de los conductos de aire, lo que reduce el flujo de aire y produce el característico sonido de jadeo. Esto se conoce como un ataque de asma y se puede presentar como una reacción alérgica a un alérgeno u otra sustancia (asma aguda) o como parte de un ciclo complejo de enfermedad que puede incluir la reacción al estrés o al ejercicio (asma crónica).

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  • Last Reviewed on 07/09/2012
  • David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Denis Hadjiliadis, MD, Assistant Professor of Medicine, Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA.

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This page was last updated: May 7, 2013

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