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Related Concept Videos

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.
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

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,...
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 IV: Classification and Diagnostic Evaluation01:30

Heart Failure IV: Classification and Diagnostic Evaluation

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...
Heart Failure III: Clinical Manifestations01:26

Heart Failure III: Clinical Manifestations

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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Updated: May 15, 2026

A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
07:09

A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs

Published on: February 18, 2022

PET and SPECT in heart failure.

Christoph Rischpler1, Stephan Nekolla, Markus Schwaiger

  • 1Department of Nuclear Medicine, Technical University, Munich, Germany. c.rischpler@tum.de

Current Cardiology Reports
|January 23, 2013
PubMed
Summary

Nuclear imaging techniques like PET and SPECT offer new insights into heart failure pathophysiology. These methods assess biomarkers for early diagnosis, guiding therapy and monitoring novel cell-based treatments for improved patient outcomes.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Biomarker Discovery

Background:

  • Heart failure presents a significant and growing global health challenge with a poor prognosis.
  • The underlying physiological mechanisms of heart failure are not yet fully understood.
  • While gated CT is used in clinical cardiology, nuclear imaging is advancing.

Purpose of the Study:

  • To explore how advanced nuclear imaging techniques provide new insights into heart failure.
  • To investigate the potential of these techniques in early diagnosis and therapy guidance.
  • To assess their role in monitoring and predicting outcomes for cell-based heart failure therapies.

Main Methods:

  • Utilizing Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT).

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High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
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High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals

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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs
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A Surgical Model of Heart Failure with Preserved Ejection Fraction in Tibetan Minipigs

Published on: February 18, 2022

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
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High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals

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  • Non-invasively measuring key biomarkers: myocardial blood flow, viability, sympathetic innervation, neoangiogenesis, and matrix metalloproteinases activity.
  • Analyzing these biomarkers to understand left ventricle remodeling.

    • Main Results:

    • Nuclear imaging reveals pathophysiological changes in heart failure.
    • Biomarker assessment aids in identifying early left ventricle remodeling.
    • These techniques show potential for improved diagnosis and intervention.
    • Development is underway to monitor cell-based restorative therapies.

    Conclusions:

    • Advanced nuclear imaging offers novel insights into heart failure.
    • Early detection of left ventricle remodeling is possible through biomarker analysis.
    • These techniques can guide therapeutic interventions and monitor novel treatments for heart failure.