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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...
1.3K
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

4.7K
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...
4.7K
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

617
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...
617
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

1.5K
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 III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

906
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...
906
Heart Failure Drugs: β-Blockers01:22

Heart Failure Drugs: β-Blockers

1.2K
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,...
1.2K

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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
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Common Variants for Heart Failure.

Shutong Shen1, Lichan Tao1, Xiuzhi Wang1

  • 1Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.

Current Genomics
|June 19, 2015
PubMed
Summary
This summary is machine-generated.

Genetic factors significantly impact heart failure (HF) development and outcomes. Identifying common genetic variants offers insights into HF mechanisms and potential new therapeutic strategies.

Keywords:
Common variantsDilated cardiomyopathyGenome-wide association studiesHeart failureMortalityRisk

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Area of Science:

  • Cardiology
  • Genetics
  • Genomics

Background:

  • Heart failure (HF) presents significant morbidity and mortality, with current treatments being suboptimal.
  • Both clinical and environmental factors, alongside genetic predisposition, influence HF progression.
  • Understanding the genetic basis of HF is crucial for advancing treatment.

Purpose of the Study:

  • To review recently identified common genetic variants associated with HF risk and outcomes.
  • To explore the implications of these genetic findings for clinical therapy.
  • To enhance the understanding of HF pathophysiology through genetic insights.

Main Methods:

  • Review of recently published genome-wide association studies (GWAS).
  • Analysis of common variants linked to HF risk and prognosis.
  • Synthesis of current literature on genetic factors in HF.

Main Results:

  • Several common genetic variants have been newly identified as risk factors for HF.
  • Specific variants are associated with HF prognosis and patient outcomes.
  • These findings contribute to a growing understanding of HF's genetic architecture.

Conclusions:

  • Genetic variants play a key role in HF susceptibility and progression.
  • Identifying HF-associated variants can inform the development of targeted therapies.
  • Further research into genetic factors may lead to improved clinical management of heart failure.