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Related Concept Videos

Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

2.0K
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 I: Introduction01:27

Heart Failure I: Introduction

126
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...
126
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...
86
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

100
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...
100
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

73
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 Drugs: β-Blockers01:22

Heart Failure Drugs: β-Blockers

481
β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
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Related Experiment Video

Updated: Oct 13, 2025

Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs
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Sex Differences in Heart Failure.

Anuradha Lala1, Upasana Tayal2, Carine E Hamo1

  • 1Zena and Michael A. Wiener Cardiovascular Institute & Department of Population Health Science & Policy at Icahn School of Medicine at Mount Sinai, New York, New York.

Journal of Cardiac Failure
|November 14, 2021
PubMed
Summary
This summary is machine-generated.

Heart failure (HF) affects both sexes, but sex-specific differences in risk factors, pathophysiology, and treatment response remain understudied. Further research is crucial to address these knowledge gaps for improved patient outcomes.

Keywords:
Heart failurecardiovascular diseasesex differenceswomen

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Area of Science:

  • Cardiology
  • Sex-Based Medicine
  • Clinical Research

Background:

  • Heart failure (HF) is a significant cause of morbidity and mortality in both men and women.
  • Existing research has not fully explored the differences in HF predisposition, progression, and management between sexes.
  • Sex-specific risk factors and unique pathophysiological mechanisms contribute to varied HF presentation and outcomes.

Purpose of the Study:

  • To review and synthesize current knowledge on sex-specific differences in heart failure.
  • To highlight disparities in HF prevalence, risk factors, pathophysiology, clinical presentation, and therapeutic responses between men and women.
  • To identify critical knowledge gaps and propose future research directions.

Main Methods:

  • Comprehensive literature review focusing on sex differences in heart failure.
  • Analysis of studies examining epidemiological, etiological, and clinical aspects of HF across sexes.
  • Synthesis of data on pharmacological and device/surgical therapy responses in men versus women.

Main Results:

  • Significant sex differences exist in traditional and unique risk factors influencing HF.
  • Pathophysiological variations between sexes contribute to distinct clinical presentations and diagnostic challenges.
  • Differential responses to pharmacologic and device/surgical therapies are observed in men and women.

Conclusions:

  • Understanding sex-specific differences in HF is critical for personalized medicine.
  • Further research is imperative to address knowledge gaps concerning HF in men and women.
  • Future studies should focus on sex-specific mechanisms, risk stratification, and tailored therapeutic strategies.