Ventricular Dysfunction, LeftHeart VentriclesDiastoleVentricular Function, LeftEchocardiographyEchocardiography, DopplerStroke VolumeMyocardial ContractionHeartElectrocardiographyHypertrophy, Left VentricularAtrial Function, LeftHeart AtriaHemodynamicsVentricular RemodelingMyocardiumSystoleHeart FailureFunctional LateralityHypoplastic Left Heart SyndromeDogsMyocardial InfarctionCoronary CirculationTime FactorsTreatment OutcomeCardiac VolumeBlood PressureVentricular FunctionVentricular PressureHeart AneurysmCardiomyopathy, DilatedMitral ValveCardiac CatheterizationCoronary VesselsCardiac Pacing, ArtificialHeart-Assist DevicesFollow-Up StudiesTomography, X-Ray ComputedHeart RateCardiomyopathiesEchocardiography, TransesophagealAtrial FibrillationCoronary AngiographyCoronary Vessel AnomaliesHeart SeptumCardiomyopathy, HypertrophicHeart DiseasesPulmonary VeinsMyocardial IschemiaAtrial AppendageProspective StudiesPericardiumEchocardiography, Doppler, ColorCardiac OutputBlood Flow VelocityPredictive Value of TestsBundle-Branch BlockBrain MappingEndocardiumHeart Function TestsImage Processing, Computer-AssistedAnalysis of VarianceCoronary DiseaseDominance, CerebralHypertensionGated Blood-Pool ImagingAngiocardiographyOrgan SizeAortic Valve StenosisCardiac Surgical ProceduresCardiotonic AgentsCineangiographyRetrospective StudiesDisease Models, AnimalHeart Conduction SystemSubclavian ArteryVentricular Function, RightEchocardiography, Three-DimensionalMagnetic Resonance Imaging, CineReproducibility of ResultsDobutaminePulmonary ArteryTemporal LobeExercise TestTomography, Emission-Computed, Single-PhotonNatriuretic Peptide, BrainRadionuclide VentriculographyModels, CardiovascularObserver VariationCoronary Artery BypassReference ValuesCardiac Output, LowElectrophysiologic Techniques, CardiacAtrial FunctionSeverity of Illness IndexBrainFrontal LobeCoronary SinusMitral Valve StenosisPrognosis