HemodynamicsVascular ResistanceRenal CirculationBlood PressureBlood Flow VelocityCardiac OutputRegional Blood FlowCerebrovascular CirculationModels, CardiovascularPulmonary CirculationDogsKidneyHypertension, PulmonaryHeart RateBlood VolumePulsatile FlowGlomerular Filtration RateLiver CirculationCoronary CirculationTime FactorsPulmonary Wedge PressureSplanchnic CirculationPulmonary ArteryOxygenCardiography, ImpedanceOxygen ConsumptionVentricular Function, LeftHypertension, PortalBlood Gas AnalysisMicrocirculationUltrasonography, Doppler, TranscranialDisease Models, AnimalSpectroscopy, Near-InfraredArteriesStroke VolumeArterial PressureHypertensionVasodilator AgentsHeart FailureVenous PressureSwineBlood CirculationRats, Sprague-DawleyHeartDiuresisHematocritNatriuresisPulmonary Gas ExchangeLaser-Doppler FlowmetryNitric OxideAnesthesiaRenal Plasma FlowAntihypertensive AgentsCardiac CatheterizationTreatment OutcomeReninIntracranial AneurysmPortal VeinKidney GlomerulusCatheterization, Swan-GanzCerebral ArteriesHemorheologyResuscitationUltrasonography, Doppler, ColorSulfonesShock, HemorrhagicVeinsProspective StudiesMyocardiumUltrasonography, DopplerHydrodynamicsMagnetic Resonance AngiographyStress, MechanicalCarbon DioxideComputer SimulationHeart VentriclesMiddle Cerebral ArteryAcetazolamideIsofluranePortal SystemShear StrengthNorepinephrineMyocardial ContractionOxyhemoglobinsVasodilationHypotensionAtrial Natriuretic FactorAnalysis of VarianceRenal ArteryInfusions, IntravenousBrainShockFontan ProcedureDose-Response Relationship, DrugLungHemodilutionEpoprostenolCapillariesVentricular Function, RightEchocardiography