Predictors of Poor Prognosis in HFpEF

This study is investigating what factors can predict a poor outcome in patients with heart failure with preserved ejection fraction (HFpEF) — a type of heart failure where the heart pumps normally but is too stiff to fill properly. The goal is to identify warning signs earlier. **You may be eligible if...** - You have heart failure symptoms (Class II or III on a standard medical scale — meaning symptoms with moderate or less activity) - Your heart's pumping function is greater than 50% (preserved) - Tests show your heart has difficulty filling properly, either at rest or during exercise **You may NOT be eligible if...** - Stress tests show signs of reduced blood flow to the heart - You have significant blockages in your coronary arteries - You have a genetic form of heart failure (e.g., hypertrophic cardiomyopathy, amyloidosis, Fabry disease) - You have other serious heart or health conditions that would affect the results Talk to your doctor to see if this trial is right for you.