Stroke VolumeMilk EjectionVentricular Function, LeftVentricular Dysfunction, LeftHeart FailureEchocardiographyGated Blood-Pool ImagingSystoleHeart VentriclesEchocardiography, DopplerCardiomyopathy, DilatedRadionuclide AngiographyMyocardial InfarctionRadionuclide VentriculographyMyocardial ContractionDiastoleVentricular RemodelingHeartCardiac VolumeElectrocardiographyHemodynamicsVentricular Function, RightFollow-Up StudiesHeart Function TestsProspective StudiesExercise TestTreatment OutcomePredictive Value of TestsTime FactorsVentriculography, First-PassNatriuretic Peptide, BrainMagnetic Resonance Imaging, CineCardiac OutputCardiomyopathiesHeart Failure, DiastolicPrognosisMitral Valve InsufficiencyMyocardiumCardiac Pacing, ArtificialCardiac Output, LowEchocardiography, Three-DimensionalAortic Valve StenosisHeart Failure, SystolicVentricular FunctionCineangiographyCardiac CatheterizationHeart RateVentricular Dysfunction, RightExercise ToleranceHeart DiseasesAdrenergic beta-AntagonistsTomography, Emission-Computed, Single-PhotonDefibrillators, ImplantableMyocardial IschemiaSeverity of Illness IndexEchocardiography, Doppler, PulsedVentricular PressureHypertrophy, Left VentricularRetrospective StudiesChronic DiseaseBlood PressureCardiotonic AgentsCoronary DiseaseDeath, Sudden, CardiacAngiocardiographyAtrial Function, LeftCardiac Resynchronization TherapyObserver VariationTachycardia, VentricularDobutamineMitral ValveCoronary Artery BypassReproducibility of ResultsRisk FactorsPropanolaminesVentricular DysfunctionArrhythmias, CardiacCoronary AngiographyElectrocardiography, AmbulatoryRisk AssessmentCoronary CirculationEchocardiography, Doppler, ColorPulmonary Wedge PressureMultivariate AnalysisSurvival RateBiological MarkersTechnetium Tc 99m SestamibiEchocardiography, StressPhonocardiographySurvival AnalysisAortic Valve InsufficiencyHeart Valve Prosthesis ImplantationAortic ValveMagnetic Resonance ImagingSodium Pertechnetate Tc 99mHeart MurmursProportional Hazards ModelsModels, CardiovascularAtrial FibrillationChi-Square Distribution