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Related Concept Videos

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...
47
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

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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

Cardiomyopathy V: Interprofessional Care

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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...
30
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

40
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...
40
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

23
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 VI: Nursing Management01:29

Cardiomyopathy VI: Nursing Management

28
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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Related Experiment Video

Updated: Sep 2, 2025

Isolation and Characterization of Cardiac Mesenchymal Stromal Cells from Endomyocardial Bioptic Samples of Arrhythmogenic Cardiomyopathy Patients
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Atrial cardiomyopathy: from cell to bedside.

Mengmeng Li1, Yuye Ning1,2, Gary Tse3,4

  • 1Stroke Centre and Department of Neurology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.

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Atrial cardiomyopathy, a remodelling of heart atria, may be an underestimated cause of cardioembolic stroke, potentially preceding atrial fibrillation. Further research is needed for diagnosis and prevention.

Keywords:
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Area of Science:

  • Cardiology
  • Electrophysiology
  • Stroke Medicine

Background:

  • Atrial cardiomyopathy involves structural and electrical changes in the atria, leading to impaired function.
  • While atrial fibrillation is linked to cardioembolic stroke, atrial cardiomyopathy's role is underestimated.
  • The interplay between atrial cardiomyopathy, atrial fibrillation, and cardioembolic stroke requires clarification.

Purpose of the Study:

  • To review the pathogenesis of atrial cardiomyopathy, focusing on neurohormonal, inflammatory, and adipose tissue mechanisms.
  • To examine evidence linking atrial cardiomyopathy to embolic stroke, with atrial fibrillation as a potential consequence.
  • To discuss diagnostic methods and therapeutic strategies for atrial cardiomyopathy and associated stroke risk.

Main Methods:

  • Literature review of atrial cardiomyopathy pathogenesis, stroke association, and diagnostic techniques.
  • Focus on neurohormonal, inflammatory, and epicardial fat roles in atrial remodelling.
  • Appraisal of diagnostic tools including imaging (echocardiography, CT, MRI), electroanatomic mapping, ECG, biomarkers, and genetic testing.

Main Results:

  • Atrial cardiomyopathy is characterized by neurohormonal activation, inflammation, and epicardial fat accumulation.
  • Atrial cardiomyopathy may precede atrial fibrillation, creating a pro-thrombotic atrial substrate.
  • Current diagnostic techniques offer insights but require further validation in prospective studies.

Conclusions:

  • Atrial cardiomyopathy is a significant, potentially primary, driver of cardioembolic stroke.
  • Atrial fibrillation may be a marker of underlying atrial cardiomyopathy and thrombogenic risk.
  • Prompt diagnosis and targeted therapies for atrial cardiomyopathy are crucial for stroke prevention.