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Arrhythmogenic right ventricular cardiomyopathy in boxers
Crystal D Hariu1, Dewey H Carpenter
1Texas A&M University, USA.
Compendium (Yardley, PA)
|September 2, 2011
Summary
Arrhythmogenic right ventricular cardiomyopathy, once called boxer cardiomyopathy, affects boxers, causing heart rhythm issues. Genetic testing now aids in screening affected dogs, improving diagnosis and management.
Area of Science:
- Veterinary Cardiology
- Canine Genetics
- Myocardial Diseases
Background:
- Arrhythmogenic right ventricular cardiomyopathy (ARVC), previously known as boxer cardiomyopathy, is a familial heart muscle disease.
- It is notably prevalent in boxers, characterized by specific myocardial histopathology.
- Clinical signs range from asymptomatic to syncope, exercise intolerance, and heart failure.
Purpose of the Study:
- To summarize the key aspects of arrhythmogenic right ventricular cardiomyopathy in dogs.
- To highlight diagnostic challenges and therapeutic uncertainties.
- To emphasize the impact of recent genetic testing advancements on screening.
Main Methods:
- Review of existing literature on canine arrhythmogenic right ventricular cardiomyopathy.
- Discussion of clinical presentation, pathology, and diagnostic modalities.
- Evaluation of the role and impact of genetic testing in ARVC screening.
Main Results:
- ARVC leads to conduction abnormalities, primarily ventricular tachyarrhythmias with left bundle branch block morphology.
- Diagnosis can be challenging, with unclear indications for antiarrhythmic therapy.
- Genetic testing has significantly improved the ability to screen asymptomatic breeding dogs.
Conclusions:
- Arrhythmogenic right ventricular cardiomyopathy is a significant inherited cardiac condition in boxers.
- Effective screening of asymptomatic dogs was limited prior to genetic testing.
- Genetic advancements offer improved diagnostic and management strategies for ARVC in dogs.
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