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Case Reports
, 63 (2), 84-7

Asthmatic Reactions After Nasal Allergen Provocation

Case Reports

Asthmatic Reactions After Nasal Allergen Provocation

X Baur. Respiration.


Three bronchoconstrictive responses associated with acute rhinitis and occurring in two patients were observed among 400 nasal allergen challenges. Causative substances were birch pollen, Dermatophagoides pteronyssinus and HSA-conjugated pyromellitic dianhydride. Both subjects showed bronchial hyperreactivity and immediate-type sensitization to these allergens. It is concluded that bronchoobstruction nearly occurs in nasal allergen challenges. The underline pathophysiological mechanism remains unclear.

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