The prevalence of patients with cardiomyopathies who referred to Rajaei Cardiovascular medical and research center is remarkable, and also the mission of this center is to achieve center of excellence in the field of cardiomyopathy. Rajaie Cardiomyopathy and myocarditis Registry study is an observational registry of consecutive patients with four cardiomyopathy subtypes: hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), arrhythmogenic right ventricular cardiomyopathy (ARVC), and restrictive cardiomyopathy (RCM) as well as myocarditis designed to determine clinical characteristics, natural history, current therapeutic approaches, response to treatment and long-term outcomes of patients with cardiomyopathy and myocarditis and to address limitations in extant evidence to improve prognostication in cardiomyopathies and myocarditis. Prediction of mortality and response to different treatments in these patients using artificial intelligence is another aim of this registry

Inclusion Criteria:

1. age greater than one year
2. documented cardiomyopathy/ myocarditis fulfilling standard diagnostic criteria
3. able to give informed consent or in the case of child consent from a parent

Exclusion Criteria:

Patients who have not consent to participate in the study.

Patients with documented cardiomyopathy/ myocarditis fulfilling standard diagnostic criteria based on the ESC guideline for cardiomyopathy/ myocarditis