Exercise-Induced Asthma Clinical Aspects and Thoughts Concerning Its Etiology
Exercise-induced asthma (EIA) occurs in over 80% of patients with clinical asthma, and in up to 40% of patients with allergic rhinitis in whom asthma related to exercise may be their only clinical evidence of bronchial hyper-reactivity. EIA occurs 3-10 minutes after exercise and persists for minutes to hours, usually resolving spontaneously without therapy. The severity of the response is affected by such factors as type and duration of exercise, ambient air temperature, exposure to air-borne allergens and air pollutants.
Exercise-induced asthma can be ameliorated or prevented by beta adrenergic agonists, theophylline, and cromolyn sodium but not by corticosteroids, and its management must be individualized for each patient.
Current evidence suggests that both airway cooling and mediator release are important etiological factors.
Exercise-induced asthma can be ameliorated or prevented by beta adrenergic agonists, theophylline, and cromolyn sodium but not by corticosteroids, and its management must be individualized for each patient.
Current evidence suggests that both airway cooling and mediator release are important etiological factors.
Document Type: Research Article
Affiliations: University of Washington, Department of Pediatrics and Children's Orthopedic Hospital and Medical Center, Division of Allergy, Seattle, Washington
Publication date: 01 December 1983
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