HemodynamicsMyocytes, CardiacCardiac OutputHeartCardiac Surgical ProceduresArrhythmias, CardiacDeath, Sudden, CardiacBlood PressureHeart RateCardiac CatheterizationCardiac TamponadeCardiac Pacing, ArtificialCardiomegalyHeart FailureMyocardial ContractionHeart VentriclesVascular ResistanceHeart DiseasesTime FactorsEchocardiographyDogsHeart ArrestVentricular Function, LeftMyocardiumElectrocardiographyModels, CardiovascularStroke VolumeBlood Flow VelocityCardiomyopathiesCardiac Output, LowTreatment OutcomeVentricular RemodelingMyocardial InfarctionHeart TransplantationCardiac VolumeCardiotonic AgentsRegional Blood FlowMyoblasts, CardiacBlood VolumeProspective StudiesRats, Sprague-DawleyCardiac MyosinsCardiac Imaging TechniquesCerebrovascular CirculationDisease Models, AnimalHeart Defects, CongenitalHeart Function TestsVentricular Dysfunction, LeftCardiac GlycosidesTroponin ICardiomyopathy, DilatedCoronary CirculationPulmonary Wedge PressureOut-of-Hospital Cardiac ArrestMyocardial IschemiaCatheterization, Swan-GanzVentricular PressureCardiopulmonary ResuscitationMonitoring, PhysiologicAtrial Natriuretic FactorHypotensionOxygenCardiac Resynchronization TherapyOxygen ConsumptionEchocardiography, DopplerHypertension, PulmonaryPulmonary CirculationCardiopulmonary BypassMagnetic Resonance ImagingFollow-Up StudiesHeart Conduction SystemVentricular FunctionDiastoleTroponin THeart AtriaRats, WistarRetrospective StudiesCardiography, ImpedanceFibrosisPredictive Value of TestsThermodilutionBlood CirculationSystoleHeart NeoplasmsHypertrophy, Left VentricularPulmonary ArteryHypertensionNorepinephrineFetal HeartHeart-Assist DevicesArterial PressureAnesthesiaNatriuretic Peptide, BrainCentral Venous PressureCardiac Care FacilitiesRenal CirculationShockPostoperative ComplicationsVasodilator AgentsHeart Injuries