Cardiomyopathy, DilatedCardiomyopathy, HypertrophicCardiomyopathiesCardiomyopathy, RestrictiveTakotsubo CardiomyopathyCardiomyopathy, Hypertrophic, FamilialChagas CardiomyopathyMyocardiumCardiomyopathy, AlcoholicEchocardiographyArrhythmogenic Right Ventricular DysplasiaElectrocardiographyDiabetic CardiomyopathiesMyocarditisVentricular Function, LeftHeart VentriclesVentricular Dysfunction, LeftHeart FailureHeart SeptumVentricular Outflow ObstructionMyocardial ContractionDeath, Sudden, CardiacHeartMyocytes, CardiacStroke VolumeMutationCardiac MyosinsPedigreeEchocardiography, DopplerPeripartum PeriodFibrosisVentricular MyosinsTachycardia, VentricularMyocardial IschemiaSarcomeresArrhythmias, CardiacEndomyocardial FibrosisMyosin Heavy ChainsHypertrophy, Left VentricularDisease Models, AnimalTreatment OutcomeEndocardiumFollow-Up StudiesPlakophilinsHeart TransplantationLamin Type AVentricular RemodelingHemodynamicsPhenotypeTroponin TRetrospective StudiesDeath, SuddenHeart DiseasesMutation, MissenseCardiac Pacing, ArtificialDiastoleMice, TransgenicPuerperal DisordersSarcoglycansCardiomegalyTime FactorsDefibrillators, ImplantablePrognosisMagnetic Resonance Imaging, CineProspective StudiesDesmoglein 2SystoleCardiac CatheterizationRisk FactorsGlycogen Storage Disease Type IIbIsolated Noncompaction of the Ventricular MyocardiumPregnancy Complications, CardiovascularDesminDystrophinDNA Mutational AnalysisVentricular DysfunctionBiopsyAdrenergic beta-AntagonistsMitral ValveCatheter AblationHeart Function TestsCase-Control StudiesMitral Valve InsufficiencySeverity of Illness IndexAblation Techniques3-IodobenzylguanidineInfant, NewbornPredictive Value of TestsCardiotonic AgentsGenetic TestingMagnetic Resonance ImagingCoxsackievirus InfectionsHeart BlockGenotypeHeterozygoteMuscular Dystrophy, DuchenneSyncopeEpicardial MappingTropomyosinElectrocardiography, Ambulatory