CardiomyopathiesCardiomyopathy, RestrictiveCardiomyopathy, DilatedCardiomyopathy, HypertrophicCardiomyopathy, Hypertrophic, FamilialArrhythmogenic Right Ventricular DysplasiaMyocardiumChagas CardiomyopathyIsolated Noncompaction of the Ventricular MyocardiumSarcomeresMyocarditisCardiac MyosinsHeart DiseasesMyocytes, CardiacArrhythmias, CardiacDesminGenetic TestingMitochondrial DiseasesDeath, Sudden, CardiacEndomyocardial FibrosisHeart VentriclesHeart FailureMutationCardiomegalySarcoglycansEchocardiographyTroponin THeartMitochondria, HeartMagnetic Resonance Imaging, CineMyosin Heavy ChainsPhenotypePedigreeMyocardial ContractionVentricular Dysfunction, LeftMutant ProteinsMyofibrilsSportsDisease Models, AnimalElectrocardiographyMutation, MissenseDystrophinFibrosisMyocardial IschemiaDiastoleDiabetic CardiomyopathiesHeart TransplantationVentricular Function, LeftCalciumContrast MediaVentricular RemodelingMuscle ProteinsHypertrophy, Left VentricularMice, TransgenicBiopsyMagnetic Resonance ImagingStroke VolumeGenetic Predisposition to DiseaseDNA, MitochondrialCase-Control StudiesPredictive Value of TestsCardiovascular DiseasesRetrospective StudiesPrognosis