Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is a condition that most frequently occurs in boxer dogs.  

This condition consists of the right ventricle being infiltrated with a fatty or fibrofatty tissue that destroys the normal myocardium.  

This leads to the development of severe ventricular arrhythmias (VPCs and Ventricular Tachycardia) that can be life-threatening.

While there is no cure for this disease, antiarrhythmic therapy is utilized to attempt to reduce the risk of sudden death.  

It is typically impossible to eliminate all arrhythmias and sudden death remains a possibility regardless of therapy.  

24 hour Holter Monitor examinations are the best possible way to evaluate the arrhythmia frequency and grade.  

With this information, we can further direct antiarrhythmic therapy.