Ventricular Function, RightVentricular Dysfunction, RightVentricular Function, LeftStroke VolumeHeart VentriclesTricuspid ValveEchocardiography, DopplerVentricular Dysfunction, LeftVentricular FunctionEchocardiographyHypertension, PulmonaryHypertrophy, Right VentricularEchocardiography, Doppler, PulsedPulmonary Valve InsufficiencyRadionuclide VentriculographyHemodynamicsSystoleTantalumTetralogy of FallotHeartMyocardial ContractionPulmonary ArteryCardiac CatheterizationDiastoleVentricular PressureHeart FailureTransposition of Great VesselsMyocardial InfarctionEchocardiography, Doppler, ColorMyocardiumCardiac OutputHeart SeptumTime FactorsPulmonary CirculationProspective StudiesTreatment OutcomeBlood PressureRadionuclide AngiographyGated Blood-Pool ImagingPulmonary EmbolismElectrocardiographyPulmonary ValveFollow-Up StudiesMitral ValveHeart Function TestsMagnetic Resonance ImagingCardiac Surgical ProceduresPulmonary Wedge PressurePredictive Value of TestsRecovery of FunctionCoronary CirculationObserver VariationCardiomyopathy, DilatedVentriculography, First-PassCoronary DiseaseCineangiographyPrognosisCardiac VolumeVascular ResistanceHuman RightsHeart RateCardiomyopathiesVentricular RemodelingMyocardial IschemiaAngiocardiographyDobutamineVentricular DysfunctionExercise TestCardiotonic AgentsCardiac Pacing, ArtificialMitral Valve InsufficiencySeverity of Illness IndexCoronary Artery BypassMagnetic Resonance Imaging, CineCoronary AngiographyTomography, Emission-Computed, Single-PhotonGold RadioisotopesPhonocardiographyMyocardial ReperfusionAtrial Function, RightDogsHeart DiseasesAngioplasty, Balloon, CoronaryMyocardial Reperfusion InjuryAortic Valve StenosisAngina PectorisTechnetium Tc 99m SestamibiAdrenergic beta-AntagonistsVentricular SeptumEchocardiography, StressCoronary VesselsStreptokinaseHeart AtriaCineradiographyNatriuretic Peptide, BrainKinetocardiographyHeart Defects, CongenitalArrhythmias, CardiacPacemaker, ArtificialMyocardial Stunning