Anderson Fabry Disease - the Power of Information.

Inclusion Criteria: Patients with hypertrophic cardiomyopathy and features suggestive of possible Anderson-Fabry disease, defined as one of the following: * Patients with left ventricular hypertrophy (LVH) of unknown aetiology (diagnosed in/after the 3rd decade of life) defined by a wall thickness≥13 mm measured on echocardiography or cardiac magnetic resonance, in absence of male-to-male transmission and co-existent pathologies that could explain the increased LV wall thickness (i.e. hypertension, aortic stenosis); * Patients with LVH (diagnosed in/after the 3rd decade of life) and ECG findings frequently encountered in Fabry cardiomyopathy (short PR interval with high QRS voltage, remarkable repolarization abnormalities..); * Patients with unexplained LVH (diagnosed in/after the 3rd decade of life) and previous history of stroke, renal failure or clinical characteristics compatible with FD multiorgan involvement. Exclusion Criteria: NA