Cardiopulmonary Exercise Testing and Pulmonary Function for Assessing Chronic Obstructive Pulmonary Disease
Purpose To compare the grading concordance between pulmonary function tests (PFTs) and cardiopulmonary exercise testing (CPET) in grading chronic obstructive pulmonary disease (COPD) and to guide the clinical application of CPET in appropriate patient populations. Patients and Methods A retrospective analysis was condu...