Clinical Characteristics of Asthma Combined with COPD Feature

@inproceedings{Lee2014ClinicalCO,
  title={Clinical Characteristics of Asthma Combined with COPD Feature},
  author={Hea Yon Lee and Ji Young Kang and Hyoung Kyu Yoon and Sook Young Lee and Soon Seog Kwon and Young Kyoon Kim and Chin Kook Rhee},
  booktitle={Yonsei medical journal},
  year={2014}
}
PURPOSE In clinical practice, some patients with asthma show incompletely reversible airflow obstruction, resembling chronic obstructive pulmonary disease (COPD). The aim of this study was to analyze this overlap phenotype of asthma with COPD feature. MATERIALS AND METHODS A total of 256 patients, over the age of 40 years or more with a diagnosis of asthma, based on either 1) positive response to bronchodilator: >200 mL forced expiratory volume in 1 s (FEV₁) and >12% baseline or 2) positive… CONTINUE READING
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