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Pathophysiology of Heart Failure01:17

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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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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.
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The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
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The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
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The treatment for acute respiratory failure varies based on factors like the underlying cause, overall health, and severity. A collaborative healthcare team is essential for early detection, often through arterial blood gas analysis. Identifying the cause is the primary goal, with treatment strategies adjusted for ventilation/perfusion (V/Q) mismatch, shunting, or diffusion impairment.
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Updated: Jul 9, 2025

Acute Myocardial Infarction in Rats
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Inflammation in acute heart failure.

Manuel Garofalo1, Rossana Corso2, Daniela Tomasoni3

  • 1Department of Cardiology, Careggi University Hospital, Florence, Italy.

Frontiers in Cardiovascular Medicine
|December 4, 2023
PubMed
Summary
This summary is machine-generated.

Systemic inflammation plays a key role in acute heart failure (AHF) pathogenesis and predicting adverse outcomes. Further research into anti-inflammatory therapies may improve AHF treatment and patient prognosis.

Keywords:
acute heart failure (AHF)anti-inflammatory therapyheart failureinflammationsystemic inflammation

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Area of Science:

  • Cardiology
  • Immunology
  • Pathophysiology

Background:

  • Acute heart failure (AHF) is a critical condition with high mortality and rehospitalization rates.
  • The underlying pathophysiology of AHF decompensation remains incompletely understood.
  • Systemic inflammation is increasingly recognized as a significant factor in AHF.

Purpose of the Study:

  • To review the role of systemic inflammation in AHF pathogenesis.
  • To evaluate the prognostic value of inflammatory mediators in AHF.
  • To explore the potential of anti-inflammatory therapies for AHF.

Main Methods:

  • Literature review of clinical trials and ongoing studies on AHF and inflammation.
  • Analysis of the prevalence and prognostic significance of inflammatory markers.
  • Examination of evidence for anti-inflammatory treatment strategies.

Main Results:

  • Elevated levels of inflammatory mediators (e.g., hs-CRP, TNF-α, IL-6, IL-1, sST2, Galectin-3) are prevalent in AHF.
  • These inflammatory markers independently predict adverse outcomes in AHF patients.
  • Evidence suggests a role for systemic inflammation in the development and worsening of AHF.

Conclusions:

  • Systemic inflammation is integral to AHF pathophysiology and prognosis.
  • Targeting inflammatory pathways represents a potential therapeutic avenue for AHF.
  • Further clinical trials are needed to validate anti-inflammatory strategies in AHF management.