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Related Concept Videos

Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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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 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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Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

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Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
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Heart Failure Drugs: Diuretics01:22

Heart Failure Drugs: Diuretics

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Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
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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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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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Related Experiment Video

Updated: Oct 17, 2025

Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle
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Creatine deficiency and heart failure.

Annamaria Del Franco1, Giuseppe Ambrosio2, Laura Baroncelli3,4

  • 1Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy.

Heart Failure Reviews
|October 7, 2021
PubMed
Summary
This summary is machine-generated.

Heart failure involves impaired cardiac energy metabolism, particularly the creatine kinase system. Creatine deficiency impacts heart function, but supplementation effects remain controversial, warranting further research into metabolic therapies.

Keywords:
Cardiac energy metabolismCreatineCreatine deficiencyHeart failure

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Area of Science:

  • Cardiology
  • Metabolic Medicine
  • Biochemistry

Background:

  • Impaired cardiac energy metabolism is a common factor in various heart failure types.
  • The creatine kinase system is crucial for cardiac energy transport, acting as an energy shuttle.
  • Decreased creatine levels precede adenosine triphosphate reduction in heart failure, correlating with disease severity.

Purpose of the Study:

  • To comprehensively review the role of creatine in cardiac energy metabolism.
  • To assess the clinical significance of creatine deficiency in heart failure.
  • To explore potential metabolic therapies involving creatine supplementation.

Main Methods:

  • Review of experimental and clinical models investigating creatine's role in heart failure.
  • Analysis of studies on creatine deficiency and phosphocreatine buffer activity.
  • Evaluation of findings on creatine supplementation efficacy.

Main Results:

  • Creatine kinase system dysfunction is implicated in heart failure pathophysiology.
  • Reduced phosphocreatine/adenosine triphosphate ratio is linked to disease progression and dysfunction.
  • Research on creatine supplementation in heart failure has yielded controversial results.

Conclusions:

  • Creatine plays a vital role in maintaining cardiac energy homeostasis.
  • Understanding creatine deficiency is crucial for assessing heart failure.
  • Further investigation is needed to clarify the therapeutic potential of creatine supplementation for heart failure.