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Ingunn Skjørten,1,2 Janne Mykland Hilde,3 Morten Nissen Melsom,1 Jonny Hisdal,4 Viggo Hansteen,5 Kjetil Steine,2,3 Sjur Humerfelt6 1Department of Pulmonary Medicine, LHL Glittre Clinic, Hakadal, 2Faculty of Medicine, University of Oslo, Oslo, 3Department of Cardiology, Akershus University Hospital, Lørenskog, 4Section of Vascular Investigations, 5Department of Cardiology, Oslo University Hospital-Aker, 6Clinic of Allergology and Respiratory Medicine, Oslo, Norway Background: Exercise tolerance decreases as COPD progresses. Pulmonary hypertension (PH) is common in COPD and may reduce performance further. COPD patients with and without PH could potentially be identified by cardiopulmonary exercise test (CPET). However, results from previous studies are diverging, and a unified conclusion is missing. We hypothesized that CPET combined with arterial blood gases is useful to discriminate between COPD outpatients with and without PH. Methods: In total, 93 COPD patients were prospectively included. Pulmonary function tests, right heart catheterization, and CPET with blood gases were performed. The patients were divided, by mean pulmonary artery pressure, into COPD-noPH ( |
