Familial hypertrophic cardiomyopathy (FHCM) is a genetically heterogeneous cardiac disease transmitted as an autosomal dominant trait. It is the leading cause of sudden cardiac death (SCD) in youth.

Hypertrophic cardiomyopathy is not related to ischemic heart disease but 50% of cases are familial and may be related to genetic mutations in genes encoding for cardiac contractile elements.