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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 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...

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,...

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...

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Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model

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Cardiomyopathies: Temporal Review and Genetic Determination.

Gaetano Thiene¹, Stefania Rizzo¹, Cristina Basso¹

¹Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, 35121 Padova, Italy.

|October 29, 2025

Summary

This summary is machine-generated.

Cardiomyopathies are heart muscle diseases often genetic, causing mechanical or electrical dysfunction. This review covers their history, classification, genetics, and potential gene therapy for these conditions.

Keywords:

cardiomyopathies genetics heart transplant pathology sudden death

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Isolation, Culture, and Functional Characterization of Adult Mouse Cardiomyoctyes

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Published on: September 24, 2013

Area of Science:

Cardiology
Genetics
Molecular Biology

Background:

Cardiomyopathies are myocardial diseases characterized by dysfunction, potentially with or without structural changes.
These conditions are frequently genetically determined and can manifest as mechanical (systolic/diastolic) or electrical (arrhythmias, conduction disorders) dysfunction.
Historically, cardiomyopathies included dilated, hypertrophic, restrictive-obliterative, and arrhythmogenic types.

Purpose of the Study:

To review the historical evolution of cardiomyopathies.
To discuss current issues in the classification and nomenclature of cardiomyopathies.
To explore the genetic basis and potential gene therapy for cardiomyopathies.

Main Methods:

This study is a comprehensive literature review.
It synthesizes information on the history, classification, genetics, and therapeutic approaches to cardiomyopathies.

Main Results:

The definition of cardiomyopathy has expanded to include electrical disorders without structural substrates, such as channelopathies and ryanodine receptor disorders.
Genetic factors play a significant role in the etiology of many cardiomyopathies.
Gene therapy presents a potential future treatment avenue.

Conclusions:

Cardiomyopathy classification and understanding have evolved significantly, now encompassing electrical disorders.
Genetic determinants are crucial in cardiomyopathy development.
Advances in gene therapy offer promising prospects for treating these heart muscle diseases.