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Related Concept Videos

Heart Failure Drugs: Inotropic Agents01:26

Heart Failure Drugs: Inotropic Agents

717
Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
717
Heart Failure V: Medical Management01:30

Heart Failure V: Medical Management

23
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...
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Heart Failure VI: Adjunct Therapies01:22

Heart Failure VI: Adjunct Therapies

27
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.
27
Heart Failure IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

32
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
32
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

37
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...
37
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

139
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,...
139

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Related Experiment Video

Updated: Sep 9, 2025

Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
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Isometric exercise training in patients with heart failure with preserved ejection fraction: a randomized controlled

Jamie J Edwards1,2, Navazh Jalaludeen3,4, Nesan Shanmugam1

  • 1Department of Cardiology, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, Tooting, London, UK.

European Journal of Preventive Cardiology
|August 28, 2025
PubMed
Summary

Isometric exercise training (IET) is a feasible and safe intervention for heart failure with preserved ejection fraction (HFpEF). This 4-week program improved blood pressure, cardiac function, and quality of life in HFpEF patients.

Keywords:
Blood pressureCardiac mechanicsHFpEFIsometric exercise

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Area of Science:

  • Cardiology
  • Exercise Physiology
  • Clinical Medicine

Background:

  • Heart failure with preserved ejection fraction (HFpEF) presents significant challenges due to limited treatment options and high mortality.
  • Innovative therapeutic strategies are crucial for improving outcomes in HFpEF patients.
  • Isometric exercise training (IET) is known for its cardiovascular benefits, but its application in HFpEF remains unexplored.

Purpose of the Study:

  • To assess the feasibility of a 4-week isometric exercise training (IET) program in patients with heart failure with preserved ejection fraction (HFpEF).
  • To explore the safety and efficacy of IET by examining cardiovascular parameters and patient-reported outcomes in HFpEF.

Main Methods:

  • A randomized controlled trial involving 38 medically optimized HFpEF participants assigned to either a 4-week IET intervention or usual care.
  • Measurements included resting hemodynamics, cardiac function (assessed via 2D speckle tracking echocardiography for Global Longitudinal Strain and Left Atrial Reservoir Strain), and patient-reported outcomes (Kansas City Cardiomyopathy Questionnaire-12).

Main Results:

  • The IET group showed significant reductions in resting systolic, mean, and diastolic blood pressure, alongside decreased total peripheral resistance compared to the usual care group.
  • Improvements were noted in Global Longitudinal Strain (GLS) and Left Atrial Reservoir Strain (LAr), indicating enhanced cardiac function.
  • Patients in the IET group reported significant improvements in the physical limitation subscale of the Kansas City Cardiomyopathy Questionnaire (KCCQ-12).

Conclusions:

  • Isometric exercise training (IET) is a feasible, safe, and effective therapeutic intervention for patients diagnosed with heart failure with preserved ejection fraction (HFpEF).
  • IET demonstrates potential for improving cardiovascular health and quality of life in the HFpEF population.
  • Further large-scale, multi-center studies are warranted to confirm these findings and evaluate the long-term safety and broader applicability of IET in HFpEF management.