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Related Concept Videos

Heart Failure I: Introduction01:27

Heart Failure I: Introduction

55
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...
55
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

140
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,...
140
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

1.8K
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...
1.8K
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

25
Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
25
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

44
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...
44
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

48
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...
48

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Related Experiment Video

Updated: Sep 13, 2025

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
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Lactate in Heart Failure.

Piotr Gajewski1, Michał Maksymilian Wilk2, Krzysztof Aleksandrowicz1,3

  • 1Institute of Heart Diseases, Wroclaw Medical University, 50-556 Wrocław, Poland.

International Journal of Molecular Sciences
|July 29, 2025
PubMed
Summary
This summary is machine-generated.

Lactate is a key indicator in heart failure (HF), signaling poor blood flow and predicting outcomes. Understanding lactate

Keywords:
acute heart failurechronic heart failureheart failurelactate

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Area of Science:

  • Cardiology
  • Biochemistry
  • Metabolic Research

Background:

  • Lactate is traditionally viewed as a byproduct of anaerobic metabolism.
  • Its role in heart failure (HF) pathophysiology is complex and not fully understood.
  • Lactate may act as both a marker and an active metabolic substrate.

Purpose of the Study:

  • To review the diagnostic and prognostic significance of lactate in acute and chronic heart failure.
  • To explore lactate's dual role as a marker of hypoperfusion and an active metabolic substrate.
  • To discuss lactate's potential in risk stratification and guiding therapy for HF patients.

Main Methods:

  • Narrative review of existing literature.
  • Analysis of lactate's role in acute decompensated heart failure.
  • Examination of lactate dynamics during exercise in chronic heart failure, including HFpEF.

Main Results:

  • Elevated lactate levels in acute HF indicate circulatory insufficiency and predict adverse events.
  • Lactate dynamics during exercise in chronic HF reflect metabolic inefficiency and functional capacity.
  • Lactate's role varies between different HF phenotypes and clinical settings.

Conclusions:

  • Lactate possesses a multifaceted role in heart failure, extending beyond a simple metabolic byproduct.
  • Its measurement offers valuable insights for diagnosing severity, predicting prognosis, and guiding treatment strategies in HF.
  • Further research into lactate's metabolic functions could enhance risk stratification and therapeutic approaches in heart failure management.