MyocardiumHeartMyocytes, CardiacMyocardial ContractionHeart VentriclesMyocarditisArrhythmias, CardiacModels, CardiovascularTissue EngineeringMyocardial Reperfusion InjuryMyocardial InfarctionMyocardial IschemiaCardiomyopathiesCardiomyopathy, DilatedCardiac OutputDogsVentricular FunctionHeart Conduction SystemHeart DiseasesCoronary CirculationVentricular Function, LeftTime FactorsCardiotonic AgentsHeart AtriaCreatine KinaseCardiac Pacing, ArtificialPericardiumHeart FailureEchocardiographyVentricular RemodelingRats, Sprague-DawleyEndocardiumCardiac Surgical ProceduresDisease Models, AnimalDeath, Sudden, CardiacCoronary VesselsCardiomegalyMyocardial ReperfusionRats, WistarElectrocardiographyFibrosisPerfusionHemodynamicsMitochondria, HeartCardiac ElectrophysiologyHeart, ArtificialEdema, CardiacHeart RateTissue ScaffoldsRabbitsTroponin IHeart TransplantationCells, CulturedSwinePapillary MusclesMuscle CellsAnimals, NewbornMyoblasts, CardiacImmunohistochemistryEnterovirus B, HumanVentricular Dysfunction, LeftCardiomyopathy, HypertrophicModels, AnimalSarcolemmaAction PotentialsMagnetic Resonance Imaging, CineCardiac TamponadeCalciumRegenerationBlood PressureRNA, MessengerStem Cell TransplantationGuinea PigsCoronary DiseaseStroke VolumeIsoproterenolMice, Inbred C57BLCardiac CatheterizationBiological MarkersDecanoatesHypertrophy, Left VentricularHeart ArrestDiastoleVentricular PressurePurkinje FibersOxygen ConsumptionGene Expression RegulationOxidative StressOxygenHeart Function TestsEchocardiography, DopplerBlotting, WesternHeart Defects, CongenitalVentricular FibrillationChagas CardiomyopathySignal TransductionSarcomeresExtracellular MatrixDose-Response Relationship, DrugCardiac Myosins