What is ARVC in boxers Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a heart disease that boxers are highly predisposed to: it is even sometimes called “Boxer cardiomyopathy”. It is a condition where part of the heart muscle tissue is replaced by fatty or fibrous tissue, leading to potentially life-threatening abnormal heart rhythms. This can result in symptoms such as fainting, exercise intolerance, and sudden cardiac death. Diagnosis and treatment for ARVC in boxers ARVC is very common in Boxers in the US and Europe.