Utility of tools for the assessment of asthma control in childhood asthma.
10.4168/aard.2015.3.4.261
- Author:
Hwan Soo KIM
1
;
Yoon Hee KIM
;
Hee Seon LEE
;
Yoon Ki HAN
;
Young Ah PARK
;
Kyung Won KIM
;
Myung Hyun SOHN
;
Kyu Earn KIM
Author Information
1. Department of Pediatrics, The Catholic University of Korea College of Medicine, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Asthma;
Questionnaire;
Child;
Pulmonary function test;
Nitric oxide
- MeSH:
Ambulatory Care Facilities;
Asthma*;
Child;
Humans;
Lung;
Medical Records;
Nitric Oxide;
Respiratory Function Tests
- From:Allergy, Asthma & Respiratory Disease
2015;3(4):261-266
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The goal of asthma control is to maintain well-controlled state. In this study, we investigated whether childhood asthma control test (C-ACT) may reflect lung function and whether fractional exhaled nitric oxide (FeNO) can be used to improve the accuracy of C-ACT in reflecting the asthma control level. METHODS: We reviewed the medical records of 155 patients with asthma underwent lung function tests and C-ACT upon visiting our outpatient clinic. We compared lung function test results according to the C-ACT score stratified by atopy and also examined FeNO according to C-ACT and the Global Initiative for Asthma (GINA) guidelines. The diagnostic accuracy of well-controlled asthma by C-ACT, FeNO, and C-ACT+FeNO was examined. We also calculated the cutoff value of FeNO and C-ACT for well-controlled asthma. RESULTS: Peak expiratory flow (PEF) showed a significant correlation with the C-ACT score. Stratified by atopy, PEF, and forced expiration in one second (FEV1) showed significant correlations with the C-ACT score in the atopic asthma group. There was no difference in FeNO between subjects with C-ACT> or =20 and <20, but FeNO was significantly higher in the uncontrolled asthma according to the GINA guidelines. The diagnostic accuracy of well-controlled asthma was higher when FeNO was combined with the C-ACT score than C-ACT or FeNO. Our study showed that the cutoff values of C-ACT and FeNO 19 and 18.3 ppb (parts per billion), respectively, for well-controlled asthma. CONCLUSION: C-ACT showed a significant correlation with PEF, and atopic asthma group showed significant correlations with PEF and FEV1. A combination of C-ACT with FeNO might reflect asthma control status more accurately.
