Article
Allergic rhinitis phenotypes based on bronchial hyperreactivity to methacholine.
American journal of rhinology & allergy - 1 Jan 2000
Ciprandi Giorgio, Ricciardolo Fabio Luigi Massimo, Schiavetti Irene, Cirillo Ignazio
Abstract excerpt
BACKGROUND: Allergic rhinitis (AR) and asthma may be associated, bronchial hyperreactivity (BHR) is quite common in AR patients. Methacholine (MCH) is a stimulus able to elicit BHR, as many other ones. Phenotyping AR is an up-to-date issue. OBJECTIVE: The aim of this study was to evaluate whether MCH bronchial challenge is able to differentiate patients with AR. METHODS: A total of 298 patients (277 males, mean...
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