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Mingming Pan, Hongsheng Zhang, Tieying SunDepartment of Respiratory and Critical Care Medicine, Beijing Hospital, National Center of Gerontology, Beijing, People’s Republic of ChinaPurpose: Sensitively assessing bronchial reversibility by spirometry is difficult in patients with serious airflow limitation and the elderly. Some patients cannot exhale for ≥6 s to achieve FVC testing criteria. The aim of this study was to assess if FEV3 could be a more sensitive and an acceptable surrogate for evaluating bronchial reversibility in such patients.Patients and methods: Subjects who had undergone pulmonary function examination in Beijing hospital from July 2003 to April 2015 were included in the study. Patients with FEV1 |
