Exercise-induced asthma in children with intrinsic and extrinsic asthma.
The significance of intrinsic asthma as a diagnosis has been questioned since, except for the lack of evidence of allergy, there is no pathophysiologic distinction from extrinsic asthma. Following a standardized exercise stress, allergic (extrinsic) asthmatics respond with more severe asthma than do nonallergic (intrinsic) asthmatics. The incidence of significant exercise-induced asthma is greater in a group of extrinsic asthmatics than in intrinsic asthmatics. Extrinsic asthmatics show increased airway sensitivity during a significant pollen season.
D000293:Adolescent; D001249:Asthma / Q000150:complications / Q000209:etiology*; D002000:Bronchospirometry; D002648:Child; D002675:Child, Preschool; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D006967:Hypersensitivity / Q000150:complications*; D007073:Immunoglobulin E / Q000032:analysis; D007223:Infant; D008297:Male; D008450:Maximal Midexpiratory Flow Rate; D005082:Physical Exertion; D011058:Pollen; D014797:Vital Capacity; D014939:Work of Breathing
D007073:Immunoglobulin E