释义 inability of the heart to pump enough blood to sustain normal bodily functions 心力衰竭
例句 Acute heart failure is a clinical syndrome.
Preserved 英 /prɪ'zɜːvd/ 美 /prɪ'zɝv/
释义 adj. 保留的，保藏的；腌制的；喝醉的
例句 The yolk sac and yolk stalk on one of them were well preserved.
作者： Carolyn S P Lam
期刊：Eur. Heart J.
Heart failure with preserved ejection fraction (HFpEF) is a clinical syndrome in which patients have symptoms of HF, a left ventricular ejection fraction (LVEF) ≥50 percent, and evidence of cardiac dysfunction as a cause of symptoms (eg, abnormal LV filling and elevated filling pressures). When diagnosing HFpEF, it is important to exclude mimics including non-HF conditions as well as other causes of HF with an LVEF ≥50 percent, such as valvular heart disease, pericardial disease, cardiomyopathies, cardiac amyloidosis, and high output HF. The major contributors to HFpEF are systemic hypertension, aging, coronary artery disease, diabetes and metabolic syndrome, obesity, and kidney disease. Occult coronary heart disease is a common and potentially reversible cause of HFpEF. Plasma brain natriuretic peptide (BNP) and N-terminal proBNP (NT-proBNP) may be elevated or normal in patients with HFpEF. Natriuretic peptide levels should be interpreted with attention to potential confounding factors including renal failure (which causes elevated BNP levels and even greater elevation in NT-proBNP levels), obesity (which tends to depress BNP and NT-proBNP levels), as well as conditions other than left-sided HF that cause elevations in levels.