Related Experiment Video

Updated: Jun 25, 2026

Evaluation of Coronary Flow Reserve After Myocardial Ischemia Reperfusion in Rats
06:32

Evaluation of Coronary Flow Reserve After Myocardial Ischemia Reperfusion in Rats

Published on: June 28, 2019

Coronary hemodynamics in heart failure and effects of therapeutic interventions

Kanu Chatterjee1

  • 1Division of Cardiology, Moffitt-Long Hospital, University of California, San Francisco, CA 94143-0124, USA. chatterj@medicine.ucsf.edu

Journal of Cardiac Failure
|March 4, 2009
PubMed

Insights

Systolic heart failure often involves abnormal coronary hemodynamics, leading to myocardial ischemia. Understanding these changes is crucial for effective pharmacologic therapy to prevent worsening heart failure.

Area of Science:

  • Cardiology
  • Physiology

Background:

  • Systolic heart failure frequently presents with abnormal coronary hemodynamics.
  • Increased myocardial oxygen demand and impaired perfusion contribute to ischemia, necrosis, and apoptosis, potentially worsening heart failure progression.

Purpose of the Study:

  • To explore the mechanisms and therapeutic implications of coronary hemodynamic abnormalities in systolic heart failure.

Main Methods:

  • Review of neurohormonal and hemodynamic factors contributing to myocardial ischemia in heart failure.

Main Results:

  • Activated renin-angiotensin-aldosterone system and increased adrenergic activity are key neurohormonal drivers.
  • Reduced left ventricular perfusion pressure and elevated left ventricular diastolic pressure are significant hemodynamic contributors to myocardial ischemia.

Conclusions:

  • Pharmacologic agents can differentially affect coronary hemodynamics and myocardial ischemia.
  • Tailoring treatments based on coronary hemodynamic effects is vital for managing heart failure and preventing ischemia.
Abstract

More Related Videos

Invasive Hemodynamic Monitoring of Aortic and Pulmonary Artery Hemodynamics in a Large Animal Model of ARDS08:12

Invasive Hemodynamic Monitoring of Aortic and Pulmonary Artery Hemodynamics in a Large Animal Model of ARDS

Published on: November 26, 2018

Related Concept Videos

Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

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...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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...
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

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,...
Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

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.
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

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...
Heart Failure Drugs: β-Blockers01:22

Heart Failure Drugs: β-Blockers

β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation, vasodilation, and...