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  • Title: [A questionnaire survey of asthma in children with co-morbid allergic rhinitis].
    Author: Masuda S, Fujisawa T, Iguchi K, Atsuta J, Nambu M, Suehiro Y, Kamesaki S, Katsumata H, Noma Y, Nishimori H, Toda Y.
    Journal: Arerugi; 2006 May; 55(5):566-73. PubMed ID: 16883094.
    Abstract:
    BACKGROUND: Bronchial asthma is often complicated with allergic rhinitis (AR). OBJECTIVE: To investigate the relationship between the upper and lower airway diseases in children with asthma, we performed a questionnaire survey at 6 centers in Kinki area in Japan. METHODS: A questionnaire was filled out by parents of 333 asthmatic children (0-16 years, median age 7). It included questions concerning nasal symptoms, onset ages of rhinitis and asthma, correlation between nasal symptoms and asthma symptoms, and family history of allergic diseases. RESULTS: One hundred and fifty five (46.5%) subjects answered to have any nasal diseases; 20 with sinusitis, 46 with seasonal AR, and 119 (35.7%) with perennial AR. To further clarify the relationship of asthma and concomitant AR, we focused on patients with perennial AR and compared the clinical characteristics with patients with no nasal diseases. Percentage of non-atopic asthma was significantly lower in patients with comorbid AR than those without. Severity of asthma tended to be milder and family history of perennial AR was more often in the former than the latter group. Interestingly, asthmatic children with comorbid AR were more likely to have cold air-induced asthma exacerbations. In the subjects with comorbid AR, concomitant exacerbation of the upper and lower airways occurred in 38.7%. The median age of onset of asthma and nasal symptoms was 2 and 4 years, respectively. In 43.9% of them, upper airway symptoms started either before or simultaneously with asthma. CONCLUSION: The attention should be paid to the nasal symptoms in children with asthma, especially they have atopic asthma and positive family history of perennial allergic rhinitis. It is important that an appropriate diagnosis and treatment of nasal symptoms to better control asthma in children.
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