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Relationship among pulmonary function, bronchial hyperresponsiveness, and atopy in children with clinically stable asthma

Authors
 Eugene Yang  ;  Woojung Kim  ;  Byoung Chul Kwon  ;  Sung Yeon Choi  ;  Myung Hyun Sohn  ;  Kyu-Earn Kim 
Citation
 LUNG, Vol.184(2) : 73-79, 2006 
Journal Title
 LUNG 
ISSN
 0341-2040 
Issue Date
2006
MeSH
Adolescent ; Asthma/blood ; Asthma/physiopathology* ; Bronchial Hyperreactivity/blood ; Bronchial Hyperreactivity/physiopathology* ; Bronchial Provocation Tests ; Child ; Child, Preschool ; Eosinophils ; Female ; Forced Expiratory Volume ; Humans ; Leukocyte Count ; Male ; Vital Capacity
Keywords
Asthma ; Pulmonary function ; Bronchial hyperresponsiveness ; Atopy
Abstract
Pulmonary function testing plays a key role in the diagnosis and management of asthma in children. However, the literature does not clearly show whether children with clinically stable asthma have significantly reduced lung function when compared with normal children. We compared the lung function of 242 clinically stable asthmatic children who were initially diagnosed with mild intermittent or mild persistent asthma with the lung function of 100 nonasthmatic controls. The lung function was assessed using FEV1, FEV1/FVC, FEF25–75 and PEF. In addition, we measured bronchial hyperresponsiveness (BHR) using the provocation concentration of methacholine needed to produce a 20% fall in FEV1. All measures of pulmonary function were significantly decreased in the children with asthma. Pulmonary function was not influenced by atopy, serum IgE, or total eosinophil count (TEC). However, the likelihood ratio for trends revealed a significant association between our pulmonary parameters and the degree of BHR. Children with mild-to-severe BHR had greatly decreased lung function compared with those with normal BHR, the control group. In addition, a direct correlation was found between PC20 and our pulmonary parameters in asthmatic children. However, only atopic children with asthma had a significant correlation between PC20 and TEC. We found children with clinically stable asthma to have pulmonary obstruction, which associated strongly with their degree of BHR.
Full Text
http://link.springer.com/article/10.1007%2Fs00408-005-2565-0
DOI
10.1007/s00408-005-2565-0
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyu Earn(김규언)
Sohn, Myung Hyun(손명현) ORCID logo https://orcid.org/0000-0002-2478-487X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/108748
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