Effect of Short-term Oxygen During CPET in HFpEF
Effect of Short-term Oxygen During CPET in HFpEF
In a randomized, sham-controlled crossover trial the investigators will test whether
 supplemental oxygen given during cardiopulmonary exercise testing will improve exercise
 performance and physiological parameters in patients with heart failure with preserved
 ejection fraction.
Inclusion Criteria:

 -  HFpEF, stable medication for at least 4 weeks.

 Exclusion Criteria:

 -  instable status, pregnancy, clinically relevant concomitant diseases, inability to
 follow the study procedures