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Related Concept Videos

Heart Failure I: Introduction01:27

Heart Failure I: Introduction

82
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...
82
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

1.9K
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...
1.9K
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...
62
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

47
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...
47
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

61
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...
61
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

149
The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...
149

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Related Experiment Video

Updated: Sep 20, 2025

Author Spotlight: Exploring the Relationship Between Lipotoxicity and HFpEF
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Relationship Between Leptin and Heart Failure: A Meta-Analysis.

Xin Sun1, Caihong Xin2, Jiayi Yao1

  • 1Department of Endocrinology and Metabolism, The First Affiliated Hospital of Soochow University, Suzhou, CN.

Global Heart
|May 26, 2025
PubMed
Summary

Leptin levels are significantly higher in individuals with heart failure (HF) compared to healthy controls. This meta-analysis clarifies the controversial association between leptin and HF, aiding potential diagnostic and therapeutic strategies.

Keywords:
HFheart failureleptin

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Area of Science:

  • Cardiology
  • Endocrinology
  • Biomarkers

Background:

  • Heart failure (HF) affects over 60 million globally, presenting a significant health challenge.
  • Previous research suggests a link between leptin and HF, but findings are inconsistent.
  • The precise association between leptin levels and heart failure remains controversial.

Purpose of the Study:

  • To systematically review and meta-analyze existing studies on leptin levels in heart failure patients.
  • To clarify the controversial relationship between leptin and heart failure.

Main Methods:

  • A comprehensive literature search was performed across major scientific databases (Web of Science, Wiley, Embase, PubMed).
  • Studies were identified using keywords 'leptin' combined with 'heart failure' and 'HF'.
  • Meta-analysis was conducted, reporting standardized mean differences (SMD) and 95% confidence intervals (CI).

Main Results:

  • Eighteen studies involving 1149 HF patients and 622 healthy controls were included.
  • Leptin levels were found to be significantly elevated in patients with heart failure compared to healthy individuals (SMD, 0.54; 95% CI [0.15, 0.93]).

Conclusions:

  • This systematic review is the first to comprehensively evaluate the relationship between leptin and heart failure.
  • The findings indicate a significant association between higher leptin levels and heart failure.
  • Understanding leptin's role in HF could advance diagnostic and treatment approaches.