Arrhythmogenic cardiomyopathy (ACM) is a rare condition where the heart’s structure can become weak. This is because the cells of the muscle tissue don’t develop as they should.
The walls of your heart can become weak. And your heart might not be able to pump blood as well as it should.
Sometimes you might see ACM (arrhythmogenic cardiomyopathy) being called ARVC (arrhythmogenic right ventricular cardiomyopathy). The condition used to be called ARVC because it was thought to only affect your heart’s right ventricle chamber.
But research has shown that the condition can affect either the left or right ventricles, or both.