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Arrhythmogenic right ventricular cardiomyopathy/dysplasia
Julia H Indik1, Frank I Marcus
1Sarver Heart Center, University of Arizona, Tucson, AZ 85724-5037, USA. jindik@email.arizona.edu
Indian Pacing and Electrophysiology Journal
|September 1, 2006
Summary
Arrhythmogenic right ventricular cardiomyopathy (ARVC) involves fatty tissue replacing heart muscle, causing arrhythmias and sudden cardiac death risk. Diagnosis occurs in young adults, often requiring defibrillator implantation.
Area of Science:
- Cardiology
- Genetics
- Pathology
Background:
- Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a condition where heart muscle is replaced by fatty or fibrofatty tissue.
- This replacement leads to structural heart abnormalities, primarily affecting the right ventricle.
Purpose of the Study:
- To outline the key characteristics, diagnostic methods, and clinical implications of ARVC.
- To highlight the genetic basis and potential etiological factors of the disease.
Main Methods:
- Echocardiography, angiography, and cine MRI are used to detect structural changes.
- Genetic linkage studies identify chromosomal loci associated with ARVC.
- Clinical presentation and patient demographics are analyzed.
Main Results:
- ARVC/D is characterized by myocardial replacement with fatty/fibrofatty tissue.
- Structural abnormalities include right ventricular enlargement and wall motion issues.
- Genetic heterogeneity and potential role of myocarditis are noted.
Conclusions:
- ARVC/D is a significant cause of ventricular arrhythmias and sudden cardiac death, particularly in adolescents and young adults.
- Early diagnosis and management, including defibrillator implantation, are crucial.
- An international registry aims to enhance understanding of this complex cardiomyopathy.
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