The Impact of Oxygen Pulse and Its Curve Patterns on Male Patients with Heart Failure, Chronic Obstructive Pulmonary Disease, and Healthy Controls-Ejection Fractions, Related Factors and Outcomes.

ABSTRACT: Oxygen pulse (O₂P) is a function of stroke volume and cellular oxygen extraction and O₂P curve pattern (O₂PCP) can provide continuous measurements of O₂P. However, measurements of these two components are difficult during incremental maximum exercise. As cardiac function is evaluated using ejection fraction (EF) according to the guidelines and EF can be obtained using first-pass radionuclide ventriculography, the aim of this study was to investigate associations of O₂P%predicted and O₂PCP with EF in patients with heart failure with reduced or mildly reduced ejection fraction (HFrEF/HFmrEF) and chronic obstructive pulmonary disease (COPD), and also in normal controls. This was a prospective observational cross-sectional study

SUBMITTER: Chuang ML 

PROVIDER: S-EPMC9146512 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature