The combination of left ventricular non-compaction and hypertrophic cardiomyopathy in one family with a pathogenic variant in the MYBPC3 gene (rs397516037)

The article presents the results of clinical, instrumental and molecular genetic tests of three generations of a family with inherited cardiomyopathy caused by a new variant in the MYBPC3 gene. A specific feature of this case is the phenotypic heterogeneity of the mutation — a combination of hypertrophic cardiomyopathy and left ventricular non-compaction in family members. Attention is drawn to the various severity of clinical manifestations in relatives of carriers of mutation: from asymptomatic to severe heart failure and acute cerebrovascular accident.