Rationale: Patients with allergic rhinitis have more frequent bronchial hyperresponsiveness
(BHR) in cross-sectional studies. Objectives: To estimate the changes in BHR in …

Background: Remarkable relationship exists between upper and lower airways. Bronchial
hyperreactivity (BHR) is a paramount feature of asthma and may be considered a strong risk …

Background Allergic rhinitis is considered a strong risk factor for the onset of asthma.
However, few studies addressed this issue from afunctional point of view. The aim of this …

BACKGROUND: Patients with allergic rhinitis and bronchial hyperresponsiveness (BHR)
may be at higher risk of developing asthma. OBJECTIVE: To investigate whether reactivity to …

BACKGROUND: Allergic rhinitis and its impact on asthma (ARIA) document underlines the
link between upper and lower airways. Patients suffering from allergic rhinitis frequently (up …

Background Numerous studies have examined the relationship of bronchial
hyperresponsiveness (BHR) to asthma or allergic rhinitis (AR). However, little is known …

Background: Allergic disorders are characterized by a systemic involvement of the immune
response. There is a clear link between allergic rhinitis and asthma. Bronchial …

Background Bronchial hyperreactivity (BHR) is a characteristic of bronchial asthma. Patients
with allergic rhinitis who do not report symptoms of bronchial asthma on spirometry show …

Background: Subjects with allergic rhinitis but no clinical evidence of asthma have greater
bronchial hyperresponsiveness (BHR), and several factors have been implicated as its …

Epidemiological studies have shown that asthma and rhinitis often coexist in the same
patients and the prevalence of asthma is greater in patients with rhinitis. The aim of this …