Table 1.

Genetic cardiomyopathies.

Disease	Inheritance pattern	Estimated prevalence	Patients with mutations based on testing known causative genes (%)
Arrhythmogenic right ventricular cardiomyopathy	Autosomal dominant	1:5000	50–55
Dilated cardiomyopathy	Autosomal dominant, autosomal recessive, X-linked	1:2500	~25
Hypertrophic cardiomyopathy	Autosomal dominant, autosomal recessive, X-linked	1:500	35–65
Left ventricular noncompaction cardiomyopathy	Autosomal dominant, X-linked	Unknown	20–25
Restrictive cardiomyopathy	Autosomal dominant	Unknown	Unknown