Andrea R, et al. - Researchers conducted this observational, longitudinal study to validate the notion that the presence of airflow limitation and/or arterial hypoxemia predicts mortality and/or cardiovascular hospitalizations during follow-up in heart failure with preserved ejection fraction (HFPEF) outpatients. They found that the presence of airflow limitation or arterial hypoxemia enabled the detection of a group of patients with HFPEF at higher risk of death or cardiovascular hospitalizations, respectively. As both airflow limitation and arterial hypoxemia were treatable, routine assessment of lung function was recommended in the outpatient management of HFPEF patients.