Related Experiment Video

Updated: Sep 20, 2026

Single Myofiber Isolation and Culture from a Murine Model of Emery-Dreifuss Muscular Dystrophy in Early Post-Natal Development
08:07

Single Myofiber Isolation and Culture from a Murine Model of Emery-Dreifuss Muscular Dystrophy in Early Post-Natal Development

Published on: July 1, 2020

[Cardiac involvement in the course of Emery-Dreifuss muscular dystrophy]

Beata Wozakowska-Kapļon1, Marianna Janion, Alicja Stepień

  • 1Swietokrzyskie Centrum Kardiologii Wojewódzkiego Szpitala Zespolonego w Kielcach.

Polskie Archiwum Medycyny Wewnetrznej
|August 23, 2003
PubMed

Insights

Emery-Dreifuss muscular dystrophy (EDMD) is a rare X-linked condition causing muscle weakness and heart problems. This case highlights pacemaker insertion as a successful management for severe cardiac issues in a young female patient with EDMD.

Area of Science:

  • Cardiology
  • Genetics
  • Neuromuscular Disorders

Background:

  • Emery-Dreifuss muscular dystrophy (EDMD) is a rare, X-linked inherited disorder.
  • Characterized by progressive muscle weakness, joint contractures, and cardiac abnormalities.
  • Cardiac involvement, including conduction defects and arrhythmias, poses a significant risk of sudden cardiac death.

Observation:

  • A 20-year-old female patient diagnosed with EDMD presented with symptoms of bradycardia and presyncope.
  • Electrocardiogram (ECG) revealed atrio-ventricular block and non-sustained ventricular tachyarrhythmia.
  • The patient also reported experiencing palpitations.

Findings:

  • The case details the management of a young female EDMD patient with significant cardiac conduction abnormalities.
  • Pacemaker insertion was performed to address the symptomatic bradycardia and atrio-ventricular block.
  • Continuous ECG monitoring confirmed the presence of arrhythmias requiring intervention.

Implications:

  • This case underscores the critical importance of cardiac monitoring in EDMD patients.
  • Pacemaker implantation can be an effective treatment for managing life-threatening arrhythmias in EDMD.
  • Early diagnosis and proactive cardiac management are crucial for improving outcomes in EDMD.

More Related Videos

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix10:21

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

Published on: June 14, 2016

Adeno-Associated Virus-Mediated Delivery of CRISPR for Cardiac Gene Editing in Mice09:00

Adeno-Associated Virus-Mediated Delivery of CRISPR for Cardiac Gene Editing in Mice

Published on: August 2, 2018

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...
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

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...
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 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...
Structure of Cardiac Muscles01:13

Structure of Cardiac Muscles

Cardiac muscle, or myocardium, is a specialized type of muscle found exclusively in the heart. Its unique structural and functional characteristics enable the heart to perform its vital role of pumping blood throughout the body continuously and rhythmically. The cardiac muscle cells, or cardiomyocytes, possess an endomysium and perimysium but do not have an epimysium.
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...