Stroke VolumeVentricular Function, LeftStrokeVentricular Function, RightCardiac OutputVentricular FunctionVentricular Dysfunction, LeftHemodynamicsHeart VentriclesEchocardiographyHeartMyocardial ContractionBlood VolumeHeart RateBlood PressureSystoleDiastoleMyocardial InfarctionTime FactorsEchocardiography, DopplerCardiac VolumeVentricular Dysfunction, RightHeart Function TestsHeart FailureElectrocardiographyProspective StudiesGated Blood-Pool ImagingBrain IschemiaMyocardiumTreatment OutcomeRadionuclide VentriculographyCineangiographyRadionuclide AngiographyCardiac CatheterizationFollow-Up StudiesExercise TestVascular ResistanceCoronary CirculationThermodilutionHypertrophy, Left VentricularVentricular PressureCerebrovascular DisordersDogsCardiomyopathy, DilatedBlood Flow VelocityMagnetic Resonance Imaging, CineMagnetic Resonance ImagingFluid TherapyVentricular RemodelingPredictive Value of TestsCardiography, ImpedanceCoronary DiseaseEchocardiography, Doppler, ColorEchocardiography, Doppler, PulsedMitral Valve InsufficiencyDobutamineCardiotonic AgentsRisk FactorsOxygen ConsumptionRecovery of FunctionPhysical ExertionAtrial Function, LeftReproducibility of ResultsVentricular DysfunctionCardiomyopathiesCardiac Pacing, ArtificialPulmonary Wedge PressureMitral ValveCentral Venous PressurePhonocardiographySeverity of Illness IndexCoronary Artery BypassHypovolemiaHeart DiseasesObserver VariationMyocardial IschemiaEchocardiography, Three-DimensionalVentriculography, First-PassMonitoring, PhysiologicAortic Valve StenosisPulmonary ArteryPlasma VolumeAcute DiseaseCardiovascular Physiological PhenomenaPrognosisRetrospective StudiesDisease Models, AnimalAnalysis of VarianceThrombolytic TherapyAdrenergic beta-AntagonistsTomography, X-Ray ComputedEchocardiography, TransesophagealAngiocardiographyCerebral InfarctionCerebral HemorrhageExerciseTomography, Emission-Computed, Single-PhotonAtrial FibrillationHeart AtriaCoronary Angiography