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Related Concept Videos

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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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 I: Introduction01:27

Heart Failure I: Introduction

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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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Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

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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,...
131
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

1.5K
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...
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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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Author Spotlight: Exploring the Relationship Between Lipotoxicity and HFpEF
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Understanding Obesity-Related High Output Heart Failure and Its Implications.

Qiuhua Shen1, John B Hiebert1, Faith K Rahman1

  • 1University of Kansas Medical Center, School of Nursing, Kansas City, KS, USA.

International Journal of Heart Failure
|October 20, 2022
PubMed
Summary
This summary is machine-generated.

Morbid obesity is a leading cause of high-output heart failure, a condition characterized by increased cardiac output and oxygen demand. Understanding its mechanisms is crucial for developing targeted treatments for this growing health concern.

Keywords:
AdipokinesEtiologyGenomicsHeart failureObesity

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Area of Science:

  • Cardiology
  • Metabolic Disorders
  • Pathophysiology

Background:

  • Morbid obesity is a significant risk factor for heart disease, contributing to heart failure.
  • High-output heart failure is prevalent in obese individuals, marked by elevated cardiac output and reduced systemic vascular resistance.
  • Obesity-related high-output heart failure pathogenesis is not fully understood, and current management relies on general heart failure protocols.

Purpose of the Study:

  • To review the pathophysiological mechanisms and causes of obesity-related high-output heart failure.
  • To explore implications for clinical practice and future research directions.
  • To highlight the potential of omics technologies in uncovering molecular pathways.

Main Methods:

  • Literature review of existing studies on obesity and heart failure.
  • Analysis of pathophysiological mechanisms contributing to high-output heart failure in obesity.
  • Discussion of clinical management strategies and future research avenues.

Main Results:

  • Obesity contributes to high-output heart failure through complex pathophysiological pathways.
  • Current clinical management lacks specific recommendations for obesity-related high-output heart failure.
  • Omics technologies offer promising avenues for future research into molecular mechanisms.

Conclusions:

  • Obesity-related high-output heart failure is a growing concern requiring further investigation.
  • Understanding specific molecular pathways through omics is essential for developing targeted therapies.
  • Future research should focus on elucidating mechanisms to improve clinical management.