Abstract
                                        Arrhythmogenic cardiomyopathies include arrhythmogenic right ventricular cardiomyopathy, arrhythmogenic left ventricular 
cardiomyopathy, arrhythmogenic biventricular cardiomyopathy and arrhythmogenic dilated cardiomyopathy [1]. 
In terms of different arrhythmias (monomorphic ventricular tachycardia, polymorphic ventricular tachycardia or ventricular 
fibrillation) it would be useful to add early stage arrhythmogenic cardiomyopathy to the list of arrhythmogenic 
cardiomyopathies. 
The problem is how to define early stage arrhythmogenic cardiomyopathy and to differentiate Brugada syndrome or right 
ventricular outflow tract tachycardia.