[Cardiac problems in patients with progressive muscular dystrophy]

V Danzig1, J Fiksa, A Bani Hani

  • 1I. interní klinika, lékarské fakulty Univerzity Karlovy a Vseobecné fakultní nemocnice v Praze, U Nemocnice 2, 128 08 Praha 2, Czech Republic. danzig@centrum.cz

Sbornik Lekarsky
|July 1, 2004
PubMed

Insights

Progressive muscular dystrophy often leads to heart problems. This study found left ventricle filling disorders in half of patients and common ECG abnormalities like incomplete right bundle branch block.

Area of Science:

  • Cardiology
  • Neurology
  • Genetics

Context:

  • Progressive muscular dystrophy (PMD) encompasses a group of inherited disorders characterized by progressive muscle weakness and degeneration.
  • Cardiac involvement is a significant complication in various forms of PMD, impacting patient prognosis and quality of life.

Purpose:

  • To investigate the prevalence and types of cardiological changes in patients with progressive muscular dystrophy using electrocardiographic (ECG) and echocardiographic examinations.
  • To identify specific cardiac abnormalities associated with different types of muscular dystrophy, including Duchenne type and skeletal muscular dystrophy.

Summary:

  • Electrocardiographic and echocardiographic assessments were performed on 30 patients with muscular dystrophy (17 Duchenne type, 13 skeletal).
  • Left ventricle filling disorder was observed in 50% of patients.
  • Echocardiographic signs of pulmonary hypertension were noted in two patients.
  • ECG revealed incomplete right bundle branch block in one-third of cases, with supraventricular tachycardia also frequently detected.

Impact:

  • Highlights the high incidence of cardiac abnormalities in muscular dystrophy patients.
  • Underscores the importance of regular cardiac monitoring in individuals with progressive muscular dystrophy.
  • Provides valuable data for understanding the pathophysiology and clinical management of cardiac complications in muscular dystrophy.

Related Concept Videos

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,...
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
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...
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...
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...
Disorders of the Skeletal Muscle01:28

Disorders of the Skeletal Muscle

The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...