Ventricular Dysfunction, LeftVentricular Function, LeftHypertrophy, Left VentricularEchocardiographyStroke VolumeHeart FailureCoronary Artery BypassHeart VentriclesSystoleElectrocardiographyCardiomyopathiesAortic Valve StenosisIntra-Aortic Balloon PumpingHemodynamicsTreatment OutcomeDobutamineCardiomyopathy, DilatedDiastoleTissue SurvivalMyocardial ContractionMitral Valve InsufficiencySeverity of Illness IndexHeart DiseasesCoronary DiseaseMyocardiumHeart Valve ProsthesisMitral ValveAortic ValveVentricular Outflow ObstructionEchocardiography, DopplerHeartDefibrillators, ImplantableCardiomyopathy, HypertrophicMyocardial IschemiaCoronary CirculationMyocardial InfarctionCardiotonic AgentsAtrial Function, LeftDogsFollow-Up StudiesExercise TestCardiac Pacing, ArtificialCoronary AngiographyHeart Valve Prosthesis ImplantationTomography, Emission-Computed, Single-PhotonTachycardia, VentricularProspective StudiesHospital MortalityTime FactorsCoronary VesselsPrognosisBlood PressureCardiomegalyHeart RateCoronary Artery DiseasePostoperative ComplicationsSurvival AnalysisSurvival RateRisk FactorsHeart AtriaVentricular RemodelingFunctional LateralityHypoplastic Left Heart SyndromeCardiac VolumeVentricular FunctionVentricular PressureHeart AneurysmCardiac CatheterizationHeart-Assist DevicesTomography, X-Ray ComputedEchocardiography, TransesophagealAtrial FibrillationCoronary Vessel AnomaliesHeart SeptumPulmonary VeinsAtrial AppendagePericardiumEchocardiography, Doppler, ColorCardiac OutputBlood Flow VelocityPredictive Value of TestsBundle-Branch BlockBrain MappingEndocardiumHeart Function TestsImage Processing, Computer-AssistedAnalysis of VarianceDominance, CerebralHypertensionGated Blood-Pool ImagingAngiocardiographyOrgan SizeCardiac Surgical ProceduresCineangiographyRetrospective StudiesDisease Models, AnimalHeart Conduction SystemSubclavian ArteryVentricular Function, RightEchocardiography, Three-Dimensional