Cardiac OutputThermodilutionIndicator Dilution TechniquesCardiac Output, HighPlethysmography, ImpedanceMonitoring, PhysiologicCatheterization, Swan-GanzCardiography, ImpedanceSheep, DomesticHeart Function TestsMonitoring, IntraoperativeCatheterization, PeripheralLithium ChlorideReproducibility of ResultsPulmonary ArteryDye Dilution TechniqueMyocytes, CardiacProspective StudiesCardiac CatheterizationHeartHemodynamicsCardiac Output, LowCardiac Surgical ProceduresArrhythmias, CardiacHeart RateBlood PressureDeath, Sudden, CardiacVascular ResistanceCardiac Pacing, ArtificialMyocardial ContractionStroke VolumeDogsTime FactorsMyocardiumHeart DiseasesHeart VentriclesHeart FailureCardiac TamponadeCardiomegalyOxygen ConsumptionEchocardiographyRegional Blood FlowHeart ArrestVentricular Function, LeftElectrocardiographyCardiac VolumePulmonary CirculationBlood VolumeBlood CirculationCardiomyopathiesOxygenModels, CardiovascularMyoblasts, CardiacCardiotonic AgentsMyocardial InfarctionCardiac MyosinsCardiac Imaging TechniquesBlood Flow VelocityVentricular RemodelingHeart TransplantationTreatment OutcomeHeart Defects, CongenitalCardiac GlycosidesCardiovascular Physiological PhenomenaVentricular Dysfunction, LeftCentral Venous PressureTroponin ICarbon DioxidePhysical ExertionVentricular FunctionRats, Sprague-DawleyFetal HeartOut-of-Hospital Cardiac ArrestExercise TestEchocardiography, DopplerCoronary CirculationDisease Models, AnimalCardiac Resynchronization TherapyBlood Gas AnalysisCardiopulmonary BypassCardiomyopathy, DilatedCardiopulmonary ResuscitationReference ValuesCardiovascular SystemRespirationMyocardial IschemiaCalciumSwinePredictive Value of TestsNorepinephrineSensitivity and SpecificityPulmonary Wedge PressureHeart Conduction SystemAnalysis of VarianceHeart AtriaBlood Volume DeterminationTroponin TVentricular PressureFollow-Up StudiesAtrial Natriuretic Factor