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Related Concept Videos

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 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 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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Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

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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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Assessment: Nursing management of patients with cardiomyopathy begins with a thorough assessment of the patient's history, including a family history of cardiomyopathy or sudden cardiac death, personal history of heart disease, hypertension, diabetes, and any alcohol consumption or drug use.During the physical examination, assess vital signs, look for signs of heart failure (such as edema, jugular venous distention, and cyanosis), auscultate for abnormal heart sounds (like murmurs and gallops),...
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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
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Risk Stratification in Hypertrophic Cardiomyopathy.

Alexandros Klavdios Steriotis1, Sanjay Sharma1

  • 1CRY Centre for Inherited Cardiovascular Conditions & Sports Cardiology, St George's University of London, London, UK.

European Cardiology
|October 13, 2018
PubMed
Summary
This summary is machine-generated.

Hypertrophic cardiomyopathy (HCM) management focuses on identifying patients at risk of sudden cardiac death (SCD). While implantable cardioverter-defibrillators (ICDs) prevent SCD, refining risk stratification is crucial for optimal patient selection.

Keywords:
Hypertrophic cardiomyopathyrisk stratificationsudden cardiac death

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Area of Science:

  • Cardiology
  • Genetics
  • Molecular Biology

Background:

  • Hypertrophic cardiomyopathy (HCM) is an inherited heart muscle disease characterized by left ventricular hypertrophy.
  • It is primarily caused by mutations in genes encoding sarcomeric proteins.
  • The main concern is the risk of fatal ventricular arrhythmias and sudden cardiac death (SCD).

Purpose of the Study:

  • To review the current strategies for identifying patients at risk of SCD in HCM.
  • To discuss the role and challenges of implantable cardioverter-defibrillator (ICD) therapy for primary and secondary prevention of SCD.
  • To highlight the need for improved risk stratification models in HCM.

Main Methods:

  • Review of existing literature on HCM, SCD risk factors, and ICD therapy.
  • Analysis of the limitations of current risk stratification methods.
  • Discussion of emerging risk models and their validation needs.

Main Results:

  • Aborted SCD and malignant ventricular arrhythmias are strong indicators for ICD implantation (secondary prevention).
  • Primary prevention of SCD with ICDs is challenging due to the heterogeneous nature of HCM and variable risk factors.
  • A new European Society of Cardiology risk model shows potential but requires further validation.

Conclusions:

  • ICD therapy is effective in preventing SCD in HCM patients with a history of aborted SCD or malignant arrhythmias.
  • Accurate risk stratification is essential to select appropriate candidates for primary prevention ICD implantation, balancing benefits against potential complications.
  • Continued research is needed to refine risk prediction models for HCM patients to optimize ICD use.