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Cardiomyopathy I: Introduction and Classification

Cardiomyopathy I: Introduction and Classification

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...

Myocarditis I: Introduction

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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...

Cardiomyopathy IV: Restrictive Cardiomyopathy

Cardiomyopathy IV: Restrictive Cardiomyopathy

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...

Rheumatic Heart Disease I: Introduction

Rheumatic Heart Disease I: Introduction

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...

Cardiomyopathy II: Dilated Cardiomyopathy

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,...

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Related Experiment Video

Updated: May 28, 2026

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

Published on: June 14, 2016

[Primary scleroderma myocardial disease].

¹Rhumatologie A, Hôpital Cochin, AP-HP, 27 rue du Faubourg Saint-Jacques,--75014 Paris, Université Paris Descartes, France. andre.kahan@cch.aphp.fr

Bulletin De L'Academie Nationale De Medecine

|November 2, 2011

Summary

Systemic sclerosis commonly causes myocardial disease, often due to coronary artery vasospasm. Treatments targeting vasospasm may prevent heart complications in these patients.

Area of Science:

Cardiology
Rheumatology
Pathophysiology

Context:

Systemic sclerosis frequently involves the heart, impacting patient prognosis.
Myocardial disease in systemic sclerosis is linked to coronary microvascular dysfunction.

Purpose:

To explore the mechanisms of cardiac involvement in systemic sclerosis.
To evaluate the efficacy of vasodilatory therapies for myocardial dysfunction.

Summary:

Primary myocardial disease is common in systemic sclerosis, often caused by coronary artery vasospasm.
Impaired myocardial perfusion and ventricular dysfunction are confirmed by advanced imaging.
Vasodilators show promise in improving cardiac function and preventing complications.

Impact:

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Ultrasonic Assessment of Myocardial Microstructure

Ultrasonic Assessment of Myocardial Microstructure

Published on: January 14, 2014

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Last Updated: May 28, 2026

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

Published on: June 14, 2016

Ultrasonic Assessment of Myocardial Microstructure

Ultrasonic Assessment of Myocardial Microstructure

Published on: January 14, 2014

Highlights the role of vasospasm in systemic sclerosis-related heart disease.
Suggests potential therapeutic strategies for managing cardiac complications.
Emphasizes the need for early detection and intervention in affected patients.