What is the term for the genetic condition that causes ventricular arrhythmia and is known as a type of cardiomyopathy?

The term that refers to the genetic condition causing ventricular arrhythmia and classified as a type of cardiomyopathy is Arrhythmogenic Right Ventricular Dysplasia (ARVD). This condition specifically affects the structure and function of the right ventricle, leading to its degeneration and the replacement of muscle tissue with fibrous and fatty tissues. ARVD is directly linked to disruptions in the heart's electrical system, which can result in life-threatening arrhythmias due to this abnormal tissue formation.

In contrast, hypertrophic cardiomyopathy primarily features an abnormal thickening of the heart muscle and does not typically lead to the same type of arrhythmogenic risks associated with ARVD. Dilated cardiomyopathy is characterized by the dilation and impaired contraction of the heart's ventricles, while restrictive cardiomyopathy involves the stiffening of the heart muscles, which restricts filling. None of these conditions are predominantly associated with ventricular arrhythmia in the same manner as ARVD, making it the specific choice for the given question.