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Related Concept Videos

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 VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

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Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
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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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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...
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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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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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Updated: Feb 25, 2026

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
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Gaps in the Heart Failure Guidelines.

Bao Tran1, Gregg C Fonarow1

  • 1Ahmanson-UCLA Cardiomyopathy Center, Ronald Reagan-UCLA Medical Center, Los Angeles,California, USA.

Cardiac Failure Review
|August 9, 2017
PubMed
Summary
This summary is machine-generated.

Evidence gaps persist in heart failure (HF) care, impacting clinical guidelines. This study identifies these knowledge gaps and areas needing further research for improved HF management.

Keywords:
Heart failureguidelinesquality of care

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Area of Science:

  • Cardiology
  • Clinical Practice Guidelines
  • Evidence-Based Medicine

Background:

  • Current heart failure (HF) guidelines have limitations due to incomplete evidence.
  • Significant knowledge gaps exist in various aspects of HF care.

Purpose of the Study:

  • To identify and highlight current gaps in the evidence base for heart failure (HF) care.
  • To pinpoint areas within HF guidelines that require further research.
  • To note areas where new data may soon address existing uncertainties.

Main Methods:

  • Review of existing heart failure (HF) clinical practice guidelines.
  • Analysis of the evidence base supporting current HF recommendations.
  • Identification of areas lacking robust scientific data.

Main Results:

  • Multiple gaps identified in the evidence underpinning heart failure (HF) management strategies.
  • Specific clinical scenarios and patient populations with insufficient supporting data highlighted.
  • Emerging research areas and forthcoming data relevant to HF care noted.

Conclusions:

  • Addressing evidence gaps is crucial for refining and updating heart failure (HF) guidelines.
  • Further research is warranted in identified areas to enhance patient outcomes.
  • Anticipation of new data may resolve some current guideline limitations.