EndocardiumMyocardiumPericardiumHeartHeart VentriclesDogsEndocardial CushionsHeart ValvesMyocardial ContractionHeart Conduction SystemHeart AtriaMyocardial StunningVentricular FunctionMyocardial IschemiaEndocardial FibroelastosisMyocytes, CardiacCoronary CirculationElectrocardiographyEpicardial MappingElectrophysiologic Techniques, CardiacAction PotentialsMyocardial InfarctionAmino Acid Chloromethyl KetonesEndocardial Cushion DefectsAtrial AppendageCardiomyopathiesModels, CardiovascularCardiac Pacing, ArtificialHeart SeptumBody Surface Potential MappingTachycardia, VentricularPurkinje FibersVentricular Function, LeftMyocardial ReperfusionQuailCoronary VesselsEchocardiographySwineAtrial FunctionTime FactorsMesodermMyocardial Reperfusion InjuryGene Expression Regulation, DevelopmentalEndomyocardial FibrosisPerfusionHemodynamicsFetal HeartCatheter AblationArrhythmias, CardiacChick EmbryoMorphogenesisDisease Models, AnimalCicatrixElectrophysiologyRabbitsCoronary DiseaseFlecainideHeart Defects, CongenitalPapillary MusclesHeart FailureVentricular Dysfunction, LeftCardiotonic AgentsHeart DiseasesAnti-Arrhythmia AgentsAniridiaReceptor, TIE-2Ventricular RemodelingDiastoleImmunohistochemistryLIM-Homeodomain ProteinsSystoleTachycardiaIn Situ HybridizationTissue SurvivalCell Lineage4-AminopyridineCardiovascular SystemHeart RateStroke VolumeCardiomegalyPacemaker, ArtificialAtrial FibrillationRNA, Messenger