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소아 천식 조절 지표로서의 기관지확장제반응의 유용성

Other Titles
 Usefulness of bronchodilator response as an index of asthma control in children 
Authors
 김종덕  ;  김수연  ;  김윤희  ;  김경원  ;  손명현  ;  설인숙 
Citation
 Allergy Asthma & Respiratory Disease, Vol.7(2) : 92-98, 2019 
Journal Title
 Allergy Asthma & Respiratory Disease 
ISSN
 2288-0402 
Issue Date
2019
Keywords
Asthma control test ; Atopy ; Lung function ; Fractional exhaled nitric oxide ; Bronchodilator response
Abstract
Purpose: Assessing asthma control is important for proper management, and various indices for objective assessment of asthma control, such as fractional exhaled nitric oxide (FeNO) and asthma control test (ACT) score have been proposed. Recently, bronchodilator response (BDR) was reported as a marker of poor asthma control in adults. This study aimed to assess the usefulness of BDR as a biomarker for childhood asthma. Methods: A total of 305 children diagnosed with asthma were included. Spirometry with bronchodilator test was done at the time of diagnosis and about 14 months after asthma treatment. All children were evaluated by childhood asthma control test (c-ACT) and FeNO after asthma treatment. The patients were divided into 2 groups according to BDR results: the positive and negative BDR groups. Various biomarkers for asthma control, such as c-ACT, FeNO and changes of forced expiratory volume in 1 second (FEV1), were compared between the 2 groups. Results: Of the 305 patients, 143 (46.9%) were positive and 162 (53.1%) were negative for BDR. The BDR-positive group showed lower FEV1. In the BDR positive group, FEV1 was significantly increased after asthma treatment, especially in children with airflow limitation which was defined as below 80% of FEV1 or atopy. In atopic children, BDR showed a significant negative correlation with c-ACT and a positive correlation with FeNO. Conclusion: In asthmatic children with airflow limitation at the time of diagnosis, BDR can be a useful index for predicting improvement in lung function by asthma maintenance treatment. BDR could be a reliable marker for the assessment of asthma control in atopic children.
Files in This Item:
T201902438.pdf Download
DOI
10.4168/aard.2019.7.2.92
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pediatrics (소아청소년과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Won(김경원) ORCID logo https://orcid.org/0000-0003-4529-6135
Kim, Soo Yeon(김수연) ORCID logo https://orcid.org/0000-0003-4965-6193
Kim, Yoon Hee(김윤희) ORCID logo https://orcid.org/0000-0002-2149-8501
Sol, In Suk(설인숙) ORCID logo https://orcid.org/0000-0003-2470-9682
Sohn, Myung Hyun(손명현) ORCID logo https://orcid.org/0000-0002-2478-487X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/170933
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