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Related Concept Videos

Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

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Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
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Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
1.5K
Heart Failure I: Introduction01:27

Heart Failure I: Introduction

1.3K
Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
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Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

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Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
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Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

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Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
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Related Experiment Video

Updated: Apr 8, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
09:20

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction

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Heart Failure With Preserved Ejection Fraction.

Felix J Rogers, Teja Gundala, Jahir E Ramos

    The Journal of the American Osteopathic Association
    |June 26, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Heart failure with preserved ejection fraction (HFpEF) is a systemic disease, not just a stiff ventricle. Exercise training improves quality of life and functional capacity in HFpEF patients.

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    Area of Science:

    • Cardiology
    • Internal Medicine
    • Systemic Diseases

    Background:

    • Heart failure with preserved ejection fraction (HFpEF) is increasingly prevalent and lethal, accounting for over 50% of heart failure cases.
    • HFpEF shares similar mortality and readmission rates with heart failure with reduced ejection fraction.
    • HFpEF is recognized as a systemic disease involving more than just ventricular stiffness.

    Purpose of the Study:

    • To review the current evidence on the pathophysiology, diagnosis, and management of HFpEF.
    • To highlight HFpEF as a systemic condition with cardiovascular and peripheral manifestations.
    • To discuss the potential of non-pharmacologic interventions for HFpEF.

    Main Methods:

    • Literature review of current evidence on HFpEF.
    • Summary of pathophysiologic aspects, including cardiovascular and peripheral factors.
    • Discussion of diagnostic criteria and management strategies.

    Main Results:

    • HFpEF involves a stiff ventricle, arterial, and venous system, leading to pulmonary edema and renal dysfunction.
    • Peripheral vascular and skeletal muscle dysfunction contribute significantly to functional limitations and exercise intolerance in HFpEF.
    • Regular exercise training demonstrates strong evidence for improving quality of life and functional capacity in HFpEF patients.

    Conclusions:

    • HFpEF is a complex systemic disease requiring a comprehensive understanding beyond ventricular function.
    • Effective pharmacologic treatments for HFpEF are currently lacking.
    • Exercise training presents a promising non-pharmacologic approach to manage functional limitations and improve outcomes in HFpEF.