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Written informed consent\n2. Diagnosis of HFpEF by a cardiologist with HF expertise, or a primary care physician with HF expertise, or a heart failure nurse\n3. Natriuretic peptide levels measured\n\nExclusion Criteria:\n\n1. LV EF \\\u003C 40% (at screening or any previous measurement)\n2. Known infiltrative cardiomyopathy (e.g., amyloid, sarcoid, lymphoma, endomyocardial fibrosis)\n3. Known active myocarditis, constrictive pericarditis, or cardiac tamponade\n4. Known genetic hypertrophic cardiomyopathy or obstructive hypertrophic cardiomyopathy\n5. Known arrhythmogenic right ventricular cardiomyopathy\n6. Known severe primary valvular heart disease\n7. Known idiopathic, heritable or drug-induced pulmonary arterial hypertension\n8. Heart transplantation or ventricular assist device\n9. 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Treatment options may be limited.\n\nUK HFpEF is a study that aims to gain a better understanding of why people develop HFpEF, develop better tests to diagnosis it, identify and test new treatments, and follow the health of the people taking part over many years.",[387],"Heart Failure With Preserved Ejection Fraction (HFpEF)","2025-05-01",{"date":390,"type":391},"2025-05-06","ACTUAL",{"date":393,"type":391},"2022-10-07",{"date":395,"type":383},"2037-06-01",{"name":5,"class":6},26]