Central Venous PressureVenous PressureJugular VeinsBlood PressurePressureHemodynamicsPlasma SubstitutesFluid TherapyCardiac OutputPulseHypovolemiaBlood VolumeBlood Pressure DeterminationVascular ResistanceHeart RateLower Body Negative PressureVascular CapacitanceMonitoring, IntraoperativePulmonary Wedge PressureHydroxyethyl Starch DerivativesIntracranial PressurePortal PressureCatheterization, Central VenousRegional Blood FlowVeinsDogsIsotonic SolutionsHydrostatic PressureMonitoring, PhysiologicSympathetic Nervous SystemTransducers, PressureHead-Down TiltCerebrospinal Fluid PressureSupine PositionPressoreceptorsAnesthesiaHypertension, PortalCapillary ResistancePostureBlood CirculationPlethysmographyFemoral VeinAnesthesia, GeneralSplanchnic CirculationTime FactorsHypotensionBlood Loss, SurgicalIntraoperative CareBaroreflexVena Cava, InferiorHypertensionConstrictionIntra-Abdominal HypertensionPortal VeinHemodilutionBlood Volume DeterminationOrgan Dysfunction ScoresShockHepatectomyColloidsReflexForearmOxygenCardiovascular DeconditioningStroke VolumeProspective StudiesIntraocular PressureHeartPulmonary EdemaBlood Flow VelocityCarbon DioxideRespirationCardiopulmonary BypassPulmonary CirculationAnesthesia, EpiduralIntensive CareShock, SepticCardiac Surgical ProceduresCollateral CirculationCardiovascular SystemAcid-Base EquilibriumHematocritAtrial Natriuretic FactorPositive-Pressure RespirationVenous InsufficiencyTreatment OutcomeHepatic VeinsPostoperative CarePulmonary ArteryCatheterizationRespiration, ArtificialArterial PressureSodium ChlorideNorepinephrineCerebrovascular CirculationBody Temperature RegulationVentricular Function, RightLiver CirculationWater-Electrolyte BalanceBlood Pressure Monitoring, Ambulatory