1,500 adult patients suffering from persistent AR were evaluated in this study from Italy.
63% of patients had reversibility to bronchodilation test and 18% had impaired FEF(25-75) values (lower than 65% of predicted).
This study highlights that about two-thirds of patients with persistent AR may be considered at risk of becoming asthmatic. Spirometry may allow the early detection of patients prone to develop asthma.
Bronchodilation test in patients with allergic rhinitis. Ciprandi G, Signori A, Tosca MA, Cirillo I. Allergy. 2011 Jan 25. doi: 10.1111/j.1398-9995.2011.02544.x.
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