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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
Published on: February 18, 2022
[Diagnosis and therapy of heart failure with normal ejection fraction]
Hans-Hendrik Schaefer1, Thomas Dieterle
1Medical Department, Novartis Pharma Schweiz AG, Bern.
Insights
Diastolic heart failure, or heart failure with preserved ejection fraction (HFpEF), is common and deadly. Current treatments focus on managing risk factors and ischemia, as no therapy has proven to reduce mortality.
Area of Science:
- Cardiology
- Heart Failure Research
- Clinical Medicine
Context:
- Diastolic heart failure (HFpEF) presents with heart failure symptoms but normal or preserved ejection fraction.
- High global prevalence and mortality rates underscore the significance of HFpEF.
- Etiology involves cardiomyocyte, extracellular matrix, and vascular abnormalities, though incompletely understood.
Purpose:
- To define the characteristics, diagnosis, and current therapeutic limitations of diastolic heart failure.
- To highlight the diagnostic criteria including symptoms, elevated natriuretic peptides, and impaired diastolic function.
- To emphasize the need for effective treatments for HFpEF.
Summary:
- Diastolic heart failure (HFpEF) is characterized by heart failure symptoms with normal or preserved left ventricular ejection fraction.
- Diagnosis requires clinical signs, elevated natriuretic peptides, impaired diastolic function, and normal systolic function, confirmed by catheterization or MRI.
- No therapy has definitively reduced HFpEF morbidity and mortality; management focuses on risk factors and ischemia.
Impact:
- Informs clinical practice regarding HFpEF diagnosis and current management strategies.
- Highlights the urgent need for novel therapeutic approaches to reduce HFpEF mortality.
- Guides future research directions for understanding and treating diastolic heart failure.
Abstract:
Diastolic heart failure, also termed as heart failure with normal or preserved ejection fraction has a high prevalence and mortality world wide. The clinical manifestation comprises typical symptoms and signs of heart failure along with normal or discretely reduced left ventricular ejection fraction. Though the etiology of diastolic heart failure is incompletely understood, functional and structural abnormalities of cardiomyocytes, the extracellular matrix, and the peripheral vasculature are assumed to contribute to the etiology of diastolic heart failure. The diagnosis requires typical symptoms and signs of heart failure, evidence of elevated natriuretic peptides and an impaired diastolic ventricular function, meanwhile left ventricular systolic function is normal or just slightly impaired. Catheter and MRI exams help to ensure the diagnosis. So far, no therapy has convincingly demonstrated a reduction of morbiditiy and mortality. Therefore, current guidelines emphasize the importance of an adequate treatment of risk factors and myocardial ischemia.
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