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Related Concept Videos

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
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...
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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,...
14
Cardiomyopathy V: Interprofessional Care01:29

Cardiomyopathy V: Interprofessional Care

20
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...
20
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

19
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
19
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...
14

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Related Experiment Video

Updated: Aug 5, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
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Published on: August 8, 2022

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Hypertrophic Cardiomyopathy.

Asra K Butt1, Deya Alkhatib1, Issa Pour-Ghaz1

  • 1Division of Cardiovascular Disease, University of Tennessee Health Science Center, Memphis, TN 38103, USA.

Journal of Cardiovascular Development and Disease
|March 28, 2023
PubMed
Summary
This summary is machine-generated.

Hypertrophic cardiomyopathy (HCM) is a genetic heart condition caused by mutations in cardiac sarcomeric proteins. Research explores these genetic underpinnings to understand disease mechanisms.

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Area of Science:

  • Cardiovascular Genetics
  • Molecular Cardiology
  • Genetic Basis of Heart Disease

Background:

  • Hypertrophic cardiomyopathy (HCM) is the most prevalent genetic cardiomyopathy.
  • It arises from mutations in genes encoding cardiac sarcomeric proteins.
  • Understanding these genetic drivers is crucial for diagnosis and treatment.

Discussion:

  • Genetic mutations significantly impact sarcomere structure and function.
  • This leads to abnormal cardiac muscle thickening and diastolic dysfunction.
  • Identifying specific mutations aids in predicting disease progression and risk stratification.

Key Insights:

  • HCM pathogenesis is linked to alterations in key contractile proteins.
  • Sarcomeric protein dysfunction is central to HCM development.
  • Genetic analysis provides a pathway for personalized medicine approaches in HCM.

Outlook:

  • Further research into sarcomeric protein interactions will refine understanding of HCM.
  • Genetic screening can identify at-risk individuals and families.
  • Targeted therapies based on specific genetic defects hold promise for HCM management.