Cardiac OutputThermodilutionHemodynamicsMyocytes, CardiacCardiac Output, LowHeartVascular ResistanceHeart RateBlood PressureDye Dilution TechniqueCardiac Output, HighCardiography, ImpedanceCardiac Surgical ProceduresStroke VolumeDogsOxygen ConsumptionArrhythmias, CardiacReproducibility of ResultsRegional Blood FlowTime FactorsCatheterization, Swan-GanzHeart Function TestsMyocardial ContractionPulmonary CirculationMonitoring, PhysiologicCardiac CatheterizationBlood VolumeHeart FailureDeath, Sudden, CardiacCardiac Pacing, ArtificialBlood CirculationHeart VentriclesMyocardiumOxygenHeart DiseasesIndicator Dilution TechniquesEchocardiographyVentricular Function, LeftCardiac TamponadeBlood Flow VelocityCardiomegalyCarbon DioxideCardiovascular Physiological PhenomenaElectrocardiographyCentral Venous PressureCardiac VolumePhysical ExertionProspective StudiesModels, CardiovascularBlood Gas AnalysisHeart ArrestPulmonary ArteryExercise TestCardiotonic AgentsEchocardiography, DopplerBlood Volume DeterminationRespirationReference ValuesCoronary CirculationCardiomyopathiesPulmonary Wedge PressureTreatment OutcomePulmonary Gas ExchangePlethysmography, ImpedanceVentricular FunctionSwineCardiovascular SystemRats, Sprague-DawleyMonitoring, IntraoperativeVentricular Dysfunction, LeftSensitivity and SpecificityFetal HeartNorepinephrineMyocardial InfarctionAnalysis of VarianceExerciseDisease Models, AnimalHeart Defects, CongenitalSplanchnic CirculationHypotensionAlgorithmsSheepPostureCardiopulmonary BypassVentricular RemodelingHeart TransplantationCalibrationModels, BiologicalPredictive Value of TestsHypertension, PulmonaryEquipment DesignIndocyanine GreenXylazineRestHematocritMyoblasts, CardiacObserver VariationVentricular PressureMuscle, SkeletalPartial Pressure