HemodynamicsVascular ResistanceRenal CirculationBlood PressureBlood Flow VelocityCardiac OutputRegional Blood FlowCerebrovascular CirculationModels, CardiovascularPulmonary CirculationDogsHypertension, PulmonaryHeart RateKidneyBlood VolumePulsatile FlowGlomerular Filtration RateLiver CirculationCoronary CirculationPulmonary Wedge PressureSplanchnic CirculationCardiography, ImpedancePulmonary ArteryOxygenOxygen ConsumptionVentricular Function, LeftHypertension, PortalBlood Gas AnalysisMicrocirculationTime FactorsUltrasonography, Doppler, TranscranialSpectroscopy, Near-InfraredArterial PressureStroke VolumeArteriesVasodilator AgentsVenous PressureHypertensionHeart FailureDiuresisBlood CirculationNatriuresisHematocritSwineHeartDisease Models, AnimalPulmonary Gas ExchangeLaser-Doppler FlowmetryRats, Sprague-DawleyRenal Plasma FlowAntihypertensive AgentsCardiac CatheterizationNitric OxideReninAnesthesiaIntracranial AneurysmPortal VeinKidney GlomerulusCatheterization, Swan-GanzCerebral ArteriesHemorheologyUltrasonography, Doppler, ColorResuscitationSulfonesShock, HemorrhagicUltrasonography, DopplerMagnetic Resonance AngiographyVeinsHydrodynamicsAcetazolamideMiddle Cerebral ArteryHeart VentriclesIsofluraneCarbon DioxideMyocardiumTreatment OutcomePortal SystemShear StrengthNorepinephrineAtrial Natriuretic FactorOxyhemoglobinsVasodilationRenal ArteryStress, MechanicalMyocardial ContractionHypotensionProspective StudiesFontan ProcedureHemodilutionInfusions, IntravenousEpoprostenolVentricular Function, RightShockVentricular PressureVascular StiffnessReceptors, EndothelinEchocardiographyAngiotensin IICapillariesPortal Pressure