Allergic rhinitis is a predisposing factor for developing clinical asthma. Moreover, allergic rhinitis is often associated with bronchial hyperresponsiveness (BHR). We hypothesise that patients with asthma have more small airway involvement than those with allergic rhinitis and BHR alone. The aim of this study was to assess peripheral and proximal NO concentration in rhinitic subjects, and to c...

Previous studies of allergic rhinitis in children have not documented the environmental risk factors for infants at age one. We examined the relationship of environmental tobacco smoke (ETS) and visible mold exposures on the development of allergic rhinitis, rhinitis and upper respiratory infection (URI) in a birth cohort where at least one parent was skin prick test (SPT) positive. ETS exposur...

Approximately 10% of all Australians and 14–16% of Australian children have asthma. Practice points • In patients with persistent allergic rhinitis, investigate for asthma (history, chest examination, pre-and post-bronchodilator spirometry if indicated). • In patients with asthma, investigate for rhinitis (history and physical examination). • In patients with both allergic rhinitis and asthma, ...

Twenty-five patients with perennial rhinitis and a positive skin prick test (SPT) for Dermatophagoides pteronyssinus (Dp) and Dermatophagoides farinae (Df) were submitted to nasal provocation and the radioimmunosorbent test (RAST) for specific IgE-antibodies. We found a significant correlation in the reaction to both allergen extracts for all parameters examined. In addition, there was a signif...

OBJECTIVE To investigate recent trends in the recorded incidence, lifetime prevalence and prescribing of symptom relief medication for allergic rhinitis in England. DESIGN Analysis of primary healthcare datasets. SETTING The UK prevalence of allergic rhinitis has increased very significantly over recent decades. Analysis of primary healthcare datasets offers the possibility to advance under...

Background Allergic rhinitis and asthma as single entities affect more boys than girls in childhood but more females in adulthood. However, it is unclear if this prevalence sex-shift also occurs in allergic rhinitis and concurrent asthma. Thus, our aim was to compare sex-specific differences in the prevalence of coexisting allergic rhinitis and asthma in childhood, adolescence and adulthood. ...

BACKGROUND The recommended drug for moderate to severe chronic rhinitis is intranasal steroids (INS). However, nasal congestion could be refractory and need additional treatments. OBJECTIVE We sought to explore the benefit of oxymetazoline (Oxymet) plus INS on nasal congestion without inducing rhinitis medicamentosa. METHODS We performed a 60-week, randomised, double-blind clinical trial in...

The aims of the present work were the evaluation of allergic disease prevalence among 6 and 7 year-old students from the western districts of São Paulo city and the comparison of these data with those obtained in the International Study of Asthma and Allergies in Childhood (ISAAC) phase I, performed in the central-southern districts of São Paulo, using the ISAAC standardized written questionnai...

The differences between allergic and non-allergic rhinitis were evaluated in 127 individuals from tropical urban region of Venezuela. The study design had historic data obtained regarding exacerbation of initial symptoms on exposure to common precipitants, physical examination, nasal cytology, immunodiagnostic test, routine laboratory test (fresh stool test, white cell count and urine test) and...