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Related Concept Videos

Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

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...
Myocarditis III: Medical Management01:14

Myocarditis III: Medical Management

Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
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,...
Myocarditis IV: Nursing Management01:22

Myocarditis IV: Nursing Management

Myocarditis is an inflammatory condition of the myocardium requiring meticulous nursing management for optimal patient outcomes. Effective management begins with a thorough assessment of the patient's medical history, paying close attention to past infections, autoimmune disorders, travel history, and exposure to toxins or drugs. Recent viral infections and systemic diseases are particularly relevant due to their potential role in triggering myocarditis.Physical Examination and MonitoringThe...
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...

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Related Experiment Video

Updated: Jun 28, 2026

Flow Cytometry-Based Quantification and Analysis of Myocardial B-Cells
12:46

Flow Cytometry-Based Quantification and Analysis of Myocardial B-Cells

Published on: August 17, 2022

Giant Cell Myocarditis in Children.

Leslie T Cooper1

  • 1Cardiovascular Division, Mayo Clinic, Rochester, MN.

Progress in Pediatric Cardiology
|November 4, 2008
PubMed
Summary

Giant cell myocarditis (GCM) is a rare, aggressive heart condition in children, often leading to poor outcomes. Early diagnosis via biopsy is crucial for timely treatment and potential heart transplantation.

Area of Science:

  • Pediatric Cardiology
  • Immunology
  • Cardiovascular Pathology

Background:

  • Giant cell myocarditis (GCM) is a rare and aggressive form of myocarditis.
  • It presents a significant challenge in pediatric cardiology due to its poor prognosis.

Purpose of the Study:

  • To summarize pediatric cases of GCM from a multicenter registry.
  • To compare pediatric GCM findings with existing literature.
  • To highlight diagnostic and therapeutic considerations for pediatric GCM.

Main Methods:

  • Review of 4 pediatric cases (<19 years) from the GCM registry (63 total cases).
  • Comparison of clinical presentation, outcomes, and associated conditions with published GCM reports.
  • Analysis of diagnostic and therapeutic strategies.

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An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
06:35

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis

Published on: February 8, 2019

Related Experiment Videos

Last Updated: Jun 28, 2026

Flow Cytometry-Based Quantification and Analysis of Myocardial B-Cells
12:46

Flow Cytometry-Based Quantification and Analysis of Myocardial B-Cells

Published on: August 17, 2022

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
06:35

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis

Published on: February 8, 2019

Main Results:

  • Pediatric GCM (4/63 cases) typically results in death or heart transplantation, unlike lymphocytic myocarditis.
  • Clinical indicators include refractory cardiomyopathy, ventricular arrhythmias, and heart block.
  • Associated immune-mediated disorders were observed in females.

Conclusions:

  • Prompt endomyocardial biopsy is vital for diagnosing GCM in children.
  • Biopsy guides mechanical circulatory support (MCS) and cardiac transplantation decisions.
  • Early consideration of immunosuppression (e.g., cyclosporine) is recommended.