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논문 기본 정보

자료유형
학술저널
저자정보
Park, Jisoo (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, CHA Bundang Medical Center CHA University) Kim, Eun-Kyung (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, CHA Bundang Medical Center CHA University) Kim, Mi-Ae (Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, CHA Bundang Medical Center CHA University) Kim, Tae-Hyung (Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Hanyang University Guri Hospital) Chang, Jung Hyun (Division of Pulmonary and Critical Care Medicine, Department of Medicine, Ewha Womans University College of Medicine) Ryu, Yon Ju (Division of Pulmonary and Critical Care Medicine, Department of Medicine, Ewha Womans University College of Medicine) Lee, Sei Won (Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine) Oh, Yeon-Mok (Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine) Yong, Suk Joong (Depart) Choi, Won-Il Yoo, Kwang Ha Lee, Ji-Hyun
저널정보
대한결핵 및 호흡기학회 Tuberculosis and Respiratory Diseases 결핵 및 호흡기 질환 제81권 제4호
발행연도
2018.1
수록면
289 - 298 (10page)

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Background: Obstructive airway disease patients with increased variability of airflow and incompletely reversible airflow obstruction are often categorized as having asthma-chronic obstructive pulmonary disease (COPD) overlap syndrome (ACOS). ACOS is heterogeneous with two sub-phenotypes: asthma-ACOS and COPD-ACOS. The objective of this study was to determine the difference in risk of exacerbation between the two sub-phenotypes of ACOS. Methods: A total of 223 patients exhibiting incompletely reversible airflow obstruction with increased variability (spirometrically defined ACOS) were enrolled. These patients were divided into asthma-ACOS and COPD-ACOS according to their physician's diagnosis and smoking history of 10 pack-years. Within-group comparisons were made for asthma-ACOS versus COPD-ACOS and light smokers versus heavy smokers. Results: Compared to patients with COPD-ACOS, patients with asthma-ACOS experienced exacerbation more often despite their younger age, history of light smoking, and better lung function. While the light-smoking group showed better lung function, they made unscheduled outpatient clinic visits more frequently. On multivariate analysis, asthma-ACOS and poor inhaler compliance were significantly associated with more than two unscheduled clinic visits during the previous year. Conclusion: Spirometrically defined ACOS includes heterogeneous subgroups with different clinical features. Phenotyping of ACOS by physician's diagnosis could be significant in predicting future risk of exacerbation.

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