Hypoxemia in patients with heart failure and preserved ejection fraction

Between 10-25% of patients with HFpEF display arterial desaturation during exercise that is not ascribable to lung disease. Exertional hypoxemia is associated with more severe hemodynamic abnormalities and increased mortality. Further study is required to better understand the mechanisms and treatment of gas exchange abnormalities in HFpEF. This article is protected by copyright. All rights reserved.