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Related Concept Videos

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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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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Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
3.4K
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...
879
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

602
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

1.4K
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...
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Author Spotlight: Investigating HR-Dependent Cardiac Function in Mouse Models Through a Novel Atrial-Pacing Approach
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Heart Failure.

Maheedhar Gedela, Muhammad Khan, Orvar Jonsson

    South Dakota Medicine : the Journal of the South Dakota State Medical Association
    |October 23, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Heart failure management, particularly for heart failure with reduced ejection fraction, is crucial due to rising patient numbers. This review covers current therapies and emerging mechanical circulatory support options.

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    Area of Science:

    • Cardiology
    • Public Health

    Background:

    • Heart failure is a significant public health issue and a leading cause of hospitalization, particularly affecting the elderly.
    • The prevalence of heart failure is projected to rise due to increased life expectancy and better management of chronic conditions.
    • Heart failure is now classified into types based on ejection fraction, yet mortality remains high for both.

    Purpose of the Study:

    • To provide an overview of current management strategies for heart failure.
    • To specifically focus on therapies for heart failure with reduced ejection fraction (HFrEF).
    • To highlight the importance of healthcare provider awareness regarding heart failure treatments.

    Main Methods:

    • This review synthesizes existing medical literature on heart failure management.
    • It examines established medical and device-based therapies.
    • It also considers emerging treatments like mechanical circulatory support.

    Main Results:

    • Numerous medical and device-based therapies have been developed, improving patient morbidity and mortality.
    • Current treatments have led to better outcomes for heart failure patients.
    • Mechanical circulatory support represents a promising new avenue for advanced heart failure.

    Conclusions:

    • Effective management of heart failure, especially HFrEF, requires comprehensive knowledge of available therapies.
    • Healthcare providers must stay informed about evolving treatment options.
    • Mechanical circulatory support offers a potential advancement for patients with advanced heart failure.