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Related Concept Videos

Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

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Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
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Cardiomyopathy I: Introduction and Classification01:25

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Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
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Rheumatic Heart Disease I: Introduction01:23

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Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Cardiomyopathy II: Dilated Cardiomyopathy01:30

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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,...
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Cardiomyopathy V: Interprofessional Care01:29

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Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
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Scarring/arrhythmogenic cardiomyopathy.

Domenico Corrado1, Alessandro Zorzi1, Alberto Cipriani1

  • 1Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padova, Via Giustiniani 2, 35121 Padova, Italy.

European Heart Journal Supplements : Journal of the European Society of Cardiology
|May 1, 2023
PubMed
Summary
This summary is machine-generated.

Scarring/arrhythmogenic cardiomyopathy (S/ACM) is a heart muscle disease characterized by myocardial scarring, leading to arrhythmias and impaired function. The Padua criteria, incorporating cardiac MRI, enhance S/ACM diagnosis and risk stratification.

Keywords:
Cardiac magnetic resonanceCardiomyopathyDiagnosisSudden cardiac deathVentricular arrhythmia

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Area of Science:

  • Cardiology
  • Cardiovascular Imaging
  • Genetics

Background:

  • Arrhythmogenic cardiomyopathy (ACM) is evolving beyond right ventricular involvement to include left ventricular (LV) and biventricular (BIV) forms.
  • Scarring/arrhythmogenic cardiomyopathy (S/ACM) is proposed as an umbrella term emphasizing myocardial scarring from myocyte death, leading to arrhythmias and systolic dysfunction.
  • Distinguishing S/ACM from non-scarring heart diseases like dilated cardiomyopathy is crucial for accurate diagnosis and management.

Purpose of the Study:

  • To introduce the term 'scarring/arrhythmogenic cardiomyopathy (S/ACM)' to encompass diverse S/ACM phenotypes.
  • To highlight the role of the 2020 Padua criteria in improving S/ACM diagnosis through cardiac magnetic resonance (CMR) imaging.
  • To discuss the challenges in risk stratification and implantable cardioverter defibrillator (ICD) selection for S/ACM patients.

Main Methods:

  • Review of evolving concepts in arrhythmogenic cardiomyopathy.
  • Emphasis on myocardial scarring as a key pathological feature.
  • Incorporation of cardiac magnetic resonance (CMR) findings in diagnostic criteria (Padua criteria).

Main Results:

  • S/ACM is characterized by ventricular myocardium loss and replacement with fibrous or fibro-fatty scar tissue.
  • The Padua criteria enhance S/ACM diagnosis by integrating CMR myocardial tissue characterization.
  • Risk stratification relies primarily on arrhythmic burden and ventricular dysfunction, with ongoing challenges in ICD patient selection.

Conclusions:

  • S/ACM represents a spectrum of conditions unified by myocardial scarring, necessitating refined diagnostic approaches.
  • The Padua criteria and CMR imaging are pivotal in advancing S/ACM diagnosis and understanding.
  • Effective management requires addressing arrhythmias, heart failure, and optimizing ICD therapy selection.