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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...

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...

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 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 V: Interprofessional Care

Cardiomyopathy V: Interprofessional Care

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...

Amyloid Fibrils

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...

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Related Experiment Video

Updated: Jun 24, 2026

Isolation of Atrial Cardiomyocytes from a Rat Model of Metabolic Syndrome-related Heart Failure with Preserved Ejection Fraction

Isolation of Atrial Cardiomyocytes from a Rat Model of Metabolic Syndrome-related Heart Failure with Preserved Ejection Fraction

Published on: July 26, 2018

Cardiac amyloidosis.

M Y Nadkar¹, A P Pandit, S H Bamburde

¹Dept. of Medicine, Seth GS Medical College and KEM Hospital, Mumbai.

The Journal of the Association of Physicians of India

|March 28, 2009

Summary

This summary is machine-generated.

A 54-year-old male with congestive cardiac failure was diagnosed with restrictive cardiomyopathy and cardiac amyloidosis. Renal biopsy confirmed amyloid deposition, with no secondary cause identified.

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Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis

Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis

Published on: June 9, 2018

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Last Updated: Jun 24, 2026

Isolation of Atrial Cardiomyocytes from a Rat Model of Metabolic Syndrome-related Heart Failure with Preserved Ejection Fraction

Isolation of Atrial Cardiomyocytes from a Rat Model of Metabolic Syndrome-related Heart Failure with Preserved Ejection Fraction

Published on: July 26, 2018

Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis

Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis

Published on: June 9, 2018

Area of Science:

Cardiology
Nephrology
Pathology

Background:

Restrictive cardiomyopathy is a group of diseases that restrict the expansion of the heart ventricles.
Cardiac amyloidosis is a condition where amyloid protein deposits in the heart, leading to stiffening and impaired function.

Observation:

A 54-year-old male presented with symptoms of congestive cardiac failure.
2D echocardiography revealed restrictive cardiomyopathy with mild mitral regurgitation.
Renal biopsy demonstrated amyloid deposition, leading to the diagnosis of cardiac amyloidosis.

Findings:

The patient was diagnosed with restrictive cardiomyopathy and cardiac amyloidosis.
Amyloid deposition was confirmed via renal biopsy.
No secondary cause for amyloidosis was identified in this patient.

Implications:

This case highlights the importance of considering cardiac amyloidosis in patients with unexplained restrictive cardiomyopathy.
Early diagnosis and management of cardiac amyloidosis are crucial for improving patient outcomes.
Further research is needed to understand the underlying mechanisms and develop targeted therapies for cardiac amyloidosis.