Arrhythmogenic Right Ventricular DysplasiaCardiomyopathy, DilatedCardiomyopathy, HypertrophicCardiomyopathiesPhenotypeArrhythmias, CardiacPlakophilinsCardiomyopathy, RestrictiveDesmoglein 2Takotsubo CardiomyopathyTachycardia, VentricularElectrocardiographyCardiomyopathy, Hypertrophic, FamilialMyocardiumChagas CardiomyopathyHeart VentriclesDesmocollinsDeath, Sudden, CardiacDesmosomesIdiopathic Pulmonary FibrosisMyocytes, CardiacElectrophysiologic Techniques, CardiacEchocardiographyMutationEndocardiumDesmoplakinsCardiomyopathy, AlcoholicHeart Conduction SystemHeartVentricular Dysfunction, RightPedigreegamma CateninAnti-Arrhythmia AgentsHeart FailureVentricular FibrillationCatheter AblationMyocardial ContractionDefibrillators, ImplantableBody Surface Potential MappingMyocarditisVentricular Dysfunction, LeftCardiac Complexes, PrematureCardiac Pacing, ArtificialVentricular Function, LeftDiabetic CardiomyopathiesMutation, MissenseLong QT SyndromeScoliosisAction PotentialsTachycardiaBrugada SyndromeFibrosisFollow-Up StudiesDisease Models, AnimalNAV1.5 Voltage-Gated Sodium ChannelArthritis, JuvenileHeart SeptumVentricular Premature ComplexesPurpura, Thrombocytopenic, IdiopathicHeart AtriaStroke VolumeTreatment OutcomeTime FactorsElectrocardiography, AmbulatoryDNA Mutational AnalysisEndomyocardial FibrosisGenotypeBundle-Branch BlockDogsMyocardial IschemiaEchocardiography, DopplerVentricular DysfunctionMice, TransgenicRyanodine Receptor Calcium Release ChannelVentricular Outflow ObstructionBiopsyHeterozygotePericardiumGenetic TestingEpicardial MappingCase-Control StudiesCalciumHair DiseasesAtrial FibrillationPulmonary VeinsPenetranceFlecainideCardiac MyosinsHypertrophy, Left VentricularHeart DiseasesRetrospective StudiesVentricular RemodelingPrognosisHeart RateSyndromeIsoproterenolSarcoplasmic ReticulumMolecular Sequence DataSyncopeVentricular Function, Right