Ventricular Dysfunction, LeftVentricular DysfunctionVentricular Dysfunction, RightStroke VolumeEchocardiographyHeart FailureVentricular Function, LeftNatriuretic Peptide, BrainCardiomyopathiesRadionuclide VentriculographyHemodynamicsMyocardial InfarctionMyocardial ContractionElectrocardiographyMyocardiumVentricular RemodelingErectile DysfunctionMyocardial StunningCardiomyopathy, DilatedHeartSystoleHeart VentriclesDobutamineMyocardial IschemiaEchocardiography, DopplerCardiotonic AgentsDiastoleTreatment OutcomeTakotsubo CardiomyopathyFollow-Up StudiesMitral Valve InsufficiencyAngiotensin-Converting Enzyme InhibitorsTime FactorsPrognosisEnalaprilPredictive Value of TestsProspective StudiesThallium RadioisotopesBiological MarkersVentricular Function, RightPulmonary EmbolismCoronary Artery BypassCoronary DiseaseExercise TestCardiac Output, LowTomography, Emission-Computed, Single-PhotonTransposition of Great VesselsDisease Models, AnimalSeverity of Illness IndexHeart DiseasesCoronary CirculationChronic DiseaseVentricular PressureMyocardial RevascularizationTissue SurvivalRisk FactorsArrhythmias, CardiacDefibrillators, ImplantableAtrial Natriuretic FactorRetrospective StudiesBlood PressureHeart Function TestsHeart RateHypertrophy, Left VentricularCardiac Pacing, ArtificialCardiac CatheterizationAortic Valve StenosisDogsTachycardia, VentricularVasodilator AgentsPreexisting Condition CoveragePulmonary Wedge PressureAdrenergic beta-AntagonistsCardiac VolumeCardiomegalyAtrial PressureRisk AssessmentAortic ValveHypertension, PulmonaryDeath, Sudden, CardiacSensitivity and SpecificityMyocytes, CardiacFibrosisTroponin ICoronary AngiographyEndocardial FibroelastosisAutonomic Nervous System DiseasesCardiac OutputAnti-Arrhythmia AgentsIntra-Aortic Balloon PumpingSurvival RateCoronary Artery DiseaseSexual Dysfunction, PhysiologicalMitral ValveAcute DiseaseEchocardiography, StressSurvival AnalysisCardiopulmonary BypassGated Blood-Pool ImagingHeart Atria