Central Venous PressureVenous PressureBlood PressurePressureHemodynamicsPlasma SubstitutesFluid TherapyCardiac OutputHypovolemiaBlood VolumeBlood Pressure DeterminationVascular ResistanceLower Body Negative PressureHeart RateVascular CapacitanceHydroxyethyl Starch DerivativesPulmonary Wedge PressurePortal PressureMonitoring, IntraoperativeJugular VeinsIntracranial PressureRegional Blood FlowHydrostatic PressureIsotonic SolutionsDogsVeinsMonitoring, PhysiologicTransducers, PressureSympathetic Nervous SystemCerebrospinal Fluid PressurePressoreceptorsHead-Down TiltSupine PositionHypertension, PortalCapillary ResistanceAnesthesiaCatheterization, Central VenousBlood CirculationPostureSplanchnic CirculationBlood Loss, SurgicalHypotensionPlethysmographyAnesthesia, GeneralBaroreflexConstrictionIntra-Abdominal HypertensionIntraoperative CareOrgan Dysfunction ScoresHemodilutionShockHepatectomyHypertensionVena Cava, InferiorBlood Volume DeterminationColloidsFemoral VeinCardiovascular DeconditioningReflexForearmStroke VolumePortal VeinIntraocular PressurePulmonary EdemaTime FactorsHeartProspective StudiesAnesthesia, EpiduralShock, SepticIntensive CareOxygenPulmonary CirculationRespirationCardiovascular SystemCollateral CirculationAtrial Natriuretic FactorPositive-Pressure RespirationAcid-Base EquilibriumCarbon DioxideHepatic VeinsCardiac Surgical ProceduresCardiopulmonary BypassPostoperative CareHematocritBlood Flow VelocityPulmonary ArteryTreatment OutcomeArterial PressureVenous InsufficiencyLiver CirculationVentricular Function, RightRespiration, ArtificialWater-Electrolyte BalanceImmersionSodium ChlorideBody Temperature RegulationBlood Pressure Monitoring, AmbulatoryHeart-Assist DevicesNorepinephrineCoronary Circulation