Venous PressurePortal VeinHypertensionHypertension, PortalHypertension, PulmonaryVaricose UlcerVenous InsufficiencyAxillary VeinFemoral VeinArteriovenous Shunt, SurgicalCerebral VeinsPortal SystemKlippel-Trenaunay-Weber SyndromeArteriovenous FistulaVaricose VeinsCentral Nervous System Vascular MalformationsSubclavian VeinUpper Extremity Deep Vein ThrombosisCentral Venous PressureVeinsCranial SinusesBrachiocephalic VeinsPortal PressureConstriction, PathologicJugular VeinsPhlebographyHypertension, RenalBlood PressureLigationSaphenous VeinPulmonary EdemaAntihypertensive AgentsHypertension, RenovascularHemodynamicsRenal DialysisLegHypertension, MalignantChronic DiseaseVascular PatencyVascular Surgical ProceduresMicrocirculationTreatment OutcomeLiver CirculationHypertension, Pregnancy-InducedEsophageal and Gastric VaricesPortasystemic Shunt, SurgicalLeukocytesRisk FactorsOcular HypertensionSplenic VeinPulmonary ArteryRats, Inbred SHRReninLiver CirrhosisBlood Pressure DeterminationMesenteric VeinsIntracranial HypertensionPortographyHepatic VeinsKidneyRats, Inbred WKYVascular ResistanceHepatic ArteryDesoxycorticosteronePortacaval Shunt, SurgicalLiverHypertrophy, Right VentricularGastrointestinal HemorrhageSodium Chloride, DietaryPrevalenceBlood Pressure Monitoring, AmbulatoryMonocrotalinePregnancy Complications, CardiovascularAngiotensin IITime FactorsRenin-Angiotensin SystemRats, Sprague-DawleyFollow-Up StudiesSplanchnic CirculationProspective StudiesDisease Models, AnimalAldosteroneVasodilator AgentsHeart RateRetrospective StudiesHyperaldosteronismPseudotumor CerebriHypertrophy, Left VentricularCardiovascular DiseasesSodium, DietaryHypersplenismDiureticsSystoleDiet, Sodium-RestrictedNitric OxidePulmonary CirculationPortasystemic Shunt, Transjugular IntrahepaticSplenorenal Shunt, SurgicalRats, Inbred DahlHydrochlorothiazide