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Related Concept Videos

Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

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...
Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

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 I: Introduction and Classification01:25

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...
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Cardiomyopathy V: Interprofessional Care01:29

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...

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Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix
10:21

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

Published on: June 14, 2016

Hypertrophic cardiomyopathy. Clinical and pathologic correlates.

Philip R Fox

    Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology
    |December 17, 2008
    PubMed
    Summary
    This summary is machine-generated.

    Hypertrophic cardiomyopathy is a heart muscle disease causing a thickened left ventricle. This condition presents diverse forms and can lead to outflow obstruction and heart failure.

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    Area of Science:

    • Cardiology
    • Pathology

    Background:

    • Hypertrophic cardiomyopathy (HCM) is a primary myocardial disease.
    • It is defined by increased cardiac mass in a non-dilated, hypertrophied left ventricle.
    • HCM exhibits substantial phenotypic variability, including diffuse and segmental hypertrophy patterns.

    Purpose of the Study:

    • To describe the clinical and morphologic characteristics of hypertrophic cardiomyopathy.
    • To outline the histopathologic features associated with the disease.
    • To detail the functional derangements observed in hypertrophic cardiomyopathy.

    Main Methods:

    • Review of clinical presentations and morphologic findings in HCM.
    • Analysis of histopathologic features such as myofiber disorganization and fibrosis.
    • Assessment of functional abnormalities including outflow obstruction and diastolic dysfunction.

    Main Results:

    • HCM presents with diverse clinical and morphologic phenotypes.
    • Key histopathologic findings include myofiber disorganization, arteriosclerosis, and fibrosis.
    • Functional derangements encompass dynamic ventricular outflow obstruction and diastolic dysfunction, potentially leading to heart failure.

    Conclusions:

    • Hypertrophic cardiomyopathy is a complex myocardial disease with significant heterogeneity.
    • Understanding its varied phenotypes, histopathology, and functional impacts is crucial for patient management.
    • The condition is associated with significant functional impairments, including heart failure.