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Forced expiratory flow between 25% and 75% of vital capacity as a predictor for bronchial hyperresponsiveness in children with allergic rhinitis

Authors
 Hyun Bin Park  ;  Yoon Hee Kim  ;  Min Jung Kim  ;  Hwan Soo Kim  ;  Hee Seon Lee  ;  Yoon Ki Han  ;  Kyung Won Kim  ;  Myung Hyun Sohn  ;  Kyu-Earn Kim 
Citation
 ALLERGY ASTHMA & RESPIRATORY DISEASE, Vol.1(1) : 60-66, 2013 
Journal Title
ALLERGY ASTHMA & RESPIRATORY DISEASE
ISSN
 2288-0402 
Issue Date
2013
Keywords
Allergic rhinitis ; Bronchial hyperresponsiveness ; Spirometry ; Pulmonary function
Abstract
Purpose
Allergic rhinitis (AR) is regarded as a risk factor for asthma and bronchial hyperresponsiveness (BHR) is frequently observed in patients with AR. The purpose of this study is to analyze the characteristics of AR patients with BHR and identify factors that contribute to the incidence of BHR.

Methods
The medical records of a total of 176 children with AR were analyzed retrospectively. All patients were evaluated by performing spirometry and a methacholine challenge test.

Results
One hundred and fifty-five patients (88%) were classified as the BHR-negative group and 21 patients (12%) were classified as the BHR-positive group. Forced expiratory flow between 25% and 75% of vital capacity (FEF25-75 %predicted) was reduced, and total eosinphil counts, total immunoglobulin E (IgE) level, and serum specific IgE levels of Dermatophagoides pteronyssinus and Dermatophagoides farinae were higher in the BHR-positive group compared to the BHR-negative group. However, FEF25-75 was the only statistically significant predictor for the presence of BHR on multivariate logistic regression analysis. The cutoff value to distinguish BHR-positive subjects obtained from a receiver operating characteristics curve of FEF25-75 was 88.4%. A higher frequency of BHR was found in the group with a FEF25-75 less than 88.4%, and the sensitivity, specificity, positive predictive value and negative predictive value were 57.1%, 80.6%, 28.6%, and 93.3%, respectively.

Conclusion
Reduced FEF25-75 values in children with AR can be helpful in predicting BHR. Children with low FEF25-75 in spirometric tests should be followed closely for apparent onset of clinical symptoms of asthma.
Files in This Item:
T201302665.pdf Download
DOI
10.4168/aard.2013.1.1.60
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Won(김경원) ORCID logo https://orcid.org/0000-0003-4529-6135
Kim, Kyu Earn(김규언)
Kim, Min Jung(김민정) ORCID logo https://orcid.org/0000-0002-5634-9709
Kim, Yoon Hee(김윤희) ORCID logo https://orcid.org/0000-0002-2149-8501
Kim, Hwan Soo(김환수)
Park, Hyun Bin(박현빈)
Sohn, Myung Hyun(손명현) ORCID logo https://orcid.org/0000-0002-2478-487X
Lee, Hee Seon(이희선)
Han, Yoon Ki(한윤기)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/87531
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