Bronchial hyperreactivity and spirometric impairment in polysensitized patients with allergic rhinitis

被引:9
|
作者
Ciprandi G. [1 ]
Cirillo I. [2 ]
Tosca M.A. [3 ]
Vizzaccaro A. [2 ]
机构
[1] Allergy Head-Neck Department, San Martino Hospital, Genoa
[2] Medicine Department, Navy Hospital, La Spezia
[3] Pediatrics Department, Istituto Giannina Gaslini, Genoa
关键词
Allergic rhinitis; Bronchial hyperreactivity; FEF; 25-75; Methacholine challenge; Polysensitization;
D O I
10.1186/1476-7961-2-3
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学科分类号
摘要
Background: We previously demonstrated in a group of patients with perennial allergic rhinitis alone impairment of spirometric parameters and high percentage of subjects with bronchial hyperreactivity (BHR). The present study aimed at evaluating a group of polysensitized subjects suffering from allergic rhinitis alone to investigate the presence of spirometric impairment and BHR during the pollen season. Methods: One hundred rhinitics sensitized both to pollen and perennial allergens were evaluated during the pollen season. Spirometry and methacholine bronchial challenge were performed. Results: Six rhinitics showed impaired values of FEV1 without referred symptoms of asthma. FEF 25 - 75 values were impaired in 28 rhinitics. Sixty-six patients showed positive methacholine bronchial challenge. FEF 25 - 75 values were impaired only in BHR positive patients (p < 0.001). A significant difference was observed both for FEV1 (p < 0.05) and FEF 25-75 (p < 0.001) considering BHR severity. Conclusions: This study evidences that an impairment of spirometric parameters may be observed in polysensitized patients with allergic rhinitis alone during the pollen season. A high percentage of these patients had BHR. A close relationship between upper and lower airways is confirmed. © 2004 Ciprandi et al; licensee BioMed Central Ltd.
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页数:6
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