Venous PressurePortal VeinHypertensionHypertension, PortalHypertension, PulmonaryVaricose UlcerVenous InsufficiencyAxillary VeinFemoral VeinBlood PressurePressureArteriovenous Shunt, SurgicalCerebral VeinsPortal SystemKlippel-Trenaunay-Weber SyndromeArteriovenous FistulaCentral Venous PressureVaricose VeinsCentral Nervous System Vascular MalformationsSubclavian VeinUpper Extremity Deep Vein ThrombosisVeinsCranial SinusesPortal PressureBrachiocephalic VeinsConstriction, PathologicHypertension, RenalJugular VeinsPhlebographyHemodynamicsAntihypertensive AgentsLigationPulmonary EdemaBlood Pressure DeterminationSaphenous VeinHydrostatic PressureHypertension, RenovascularLegRenal DialysisChronic DiseaseHypertension, MalignantBlood Pressure Monitoring, AmbulatoryMicrocirculationVascular PatencyTreatment OutcomeVascular Surgical ProceduresLiver CirculationIntraocular PressureHeart RateIntracranial PressureVascular ResistanceArterial PressureHypertension, Pregnancy-InducedTransducers, PressurePulmonary ArteryRats, Inbred SHRReninOcular HypertensionEsophageal and Gastric VaricesTime FactorsKidneyPortasystemic Shunt, SurgicalAtmospheric PressureIntracranial HypertensionSystoleAir PressureLeukocytesRats, Inbred WKYRisk FactorsSplenic VeinPulmonary Wedge PressureVentricular PressureAngiotensin IISodium Chloride, DietaryProspective StudiesRats, Sprague-DawleyLiver CirrhosisMesenteric VeinsFollow-Up StudiesDesoxycorticosteroneHepatic VeinsRenin-Angiotensin SystemDiastoleRegional Blood FlowDisease Models, AnimalPrevalencePortographyDogsSympathetic Nervous SystemPregnancy Complications, CardiovascularVasodilator AgentsHypertrophy, Right VentricularAldosteroneCardiovascular DiseasesHepatic ArteryHypertrophy, Left VentricularLiverNorepinephrinePulseSodium, Dietary