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Related Concept Videos

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 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 III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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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...
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Myocarditis I: Introduction01:21

Myocarditis I: Introduction

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Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
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Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

658
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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Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

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Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
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Related Experiment Video

Updated: Feb 28, 2026

A Doxorubicin-Induced Murine Model of Dilated Cardiomyopathy In Vivo
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A Doxorubicin-Induced Murine Model of Dilated Cardiomyopathy In Vivo

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Differences between idiopathic and ischemic dilated cardiomyopathy.

Sana Fennira, Ihsen Zairi, Zouhaier Jnifene

    La Tunisie Medicale
    |June 13, 2017
    PubMed
    Summary
    This summary is machine-generated.

    Diabetes, kidney failure, and wall motion abnormalities predict ischemic dilated cardiomyopathy, potentially reducing the need for invasive coronary angiography in diagnosis.

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    Area of Science:

    • Cardiology
    • Internal Medicine
    • Diagnostic Imaging

    Background:

    • Ischemic cardiomyopathy is potentially reversible with revascularization.
    • Coronary angiography is a standard diagnostic tool but remains invasive.

    Purpose of the Study:

    • Differentiate idiopathic from ischemic dilated cardiomyopathy.
    • Identify predictors of coronary artery disease.
    • Evaluate the utility of routine coronary angiography.

    Main Methods:

    • Retrospective study of 102 patients with dilated cardiomyopathy.
    • Comparison of clinical and paraclinical findings between ischemic and idiopathic groups.
    • Coronary angiography used to categorize patients.

    Main Results:

    • Diabetes, renal failure, and segmental wall motion abnormalities were independent predictors of ischemic dilated cardiomyopathy.
    • Diabetes was more prevalent in the ischemic group (p=0.002).
    • Renal failure and wall motion abnormalities were significantly more frequent in ischemic cardiomyopathy (p=0.01).

    Conclusions:

    • Diabetes, renal failure, and wall motion disorders predict ischemic cardiomyopathy.
    • These predictors may help limit routine invasive angiography for diagnosis.
    • Findings support targeted use of coronary angiography.