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Related Concept Videos

Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

26
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...
26
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 IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

14
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 III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

18
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...
18
Amyloid Fibrils03:03

Amyloid Fibrils

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Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
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Related Experiment Video

Updated: Aug 7, 2025

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

Michelle Weisfelner Bloom1, Peter D Gorevic2

  • 1Division of Cardiology, Renaissance School of Medicine, State University of New York at Stony Brook, Stony Brook, New York (M.W.B.).

Annals of Internal Medicine
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Cardiac amyloidosis, caused by protein buildup in the heart, is a key cause of diastolic heart failure. Early diagnosis and new treatments are improving outcomes for this often-missed condition.

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Area of Science:

  • Cardiology
  • Pathology
  • Internal Medicine

Background:

  • Amyloidosis involves misfolded protein aggregate accumulation in tissues.
  • Cardiac amyloidosis results from amyloid fibril deposition in the myocardium.
  • It is a frequently overlooked cause of diastolic heart failure.

Purpose of the Study:

  • To provide an overview of cardiac amyloidosis.
  • To summarize current screening, diagnosis, and evaluation methods.
  • To discuss updated treatment strategies for cardiac amyloidosis.

Main Methods:

  • Literature review of recent advances in cardiac amyloidosis.
  • Synthesis of information on diagnostic criteria and imaging techniques.
  • Analysis of current therapeutic approaches and their efficacy.

Main Results:

  • Cardiac amyloidosis is an underdiagnosed cause of heart failure with evolving management.
  • Advances in diagnostic tools allow for earlier and more accurate detection.
  • Novel therapies are improving prognosis and patient outcomes.

Conclusions:

  • Early recognition of cardiac amyloidosis is crucial for effective management.
  • Despite past perceptions, prognosis has improved with modern interventions.
  • This condition warrants increased clinical attention and systematic screening.