Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) in Dogs
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is a high-severity cardiac condition that can affect dogs of all ages and breeds. ARVC is a heritable cardiac disease in Boxers characterised by replacement of right ventricular muscle with fatty or fibrous tissue. It causes ventricular arrhythmias, syncope, and sudden death. Sometimes called Boxer cardiomyopathy. It is documented across 1 breed, though prevalence and severity can differ significantly between them. It typically becomes apparent at 6 months - 9 years. Early signs to watch for include fainting episodes, weakness, exercise intolerance, and irregular heartbeat. When treatment is required, costs are estimated at £1,000-£3,000/year depending on severity, location, and the specific intervention needed. Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) has a hereditary component, so health-screening certificates from the breeder are strongly recommended for predisposed breeds. This page covers symptoms, treatment options, and preventive steps — along with breed-specific information where available.
Signs & Symptoms
The following symptoms are commonly associated with Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) in dogs. If your dog displays several of these signs, consult your vet promptly — early diagnosis typically leads to better outcomes.
- Fainting episodes
- Weakness
- Exercise intolerance
- Irregular heartbeat
- Sudden death
Treatment Overview
Antiarrhythmic drugs (sotalol, mexiletine) reduce the frequency of dangerous arrhythmias. Regular Holter monitoring guides treatment adjustments. No cure exists.
Typical onset: 6 months - 9 years
Prevention & Screening
While not all cases of Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) can be prevented, the following steps reduce risk or enable earlier intervention:
- Annual Holter monitoring for breeding Boxers
- DNA test available — do not breed homozygous affected dogs
Estimated Treatment Cost
Treatment for Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is estimated at £1,000-£3,000/year, depending on severity, the specific intervention required, and your location. Costs may be higher for surgical procedures or ongoing management. Comprehensive pet insurance covering hereditary conditions is strongly recommended.
Breeds Affected by Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)
The following 1 breed are documented as being susceptible to Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC). Click any breed to view breed-specific information about this condition, including prevalence and recommended screening.
Looking for more information? Browse all dog health conditions or explore the health guides for in-depth breed care advice.