Hypertension, PortalPortal VeinPortal SystemPortal PressureLiver CirculationPortasystemic Shunt, SurgicalEsophageal and Gastric VaricesHepatic VeinsEmbolism, AirHypertensionSplenorenal Shunt, SurgicalLiver CirrhosisSplenic VeinHypertension, PulmonaryLiverGastrointestinal HemorrhageHepatic ArteryMesenteric VeinsHypersplenismCarbadoxSplanchnic CirculationVenous PressureAscitesPortasystemic Shunt, Transjugular IntrahepaticPortographySplenic ArteryPortacaval Shunt, SurgicalHepatic EncephalopathySplenomegalySplenectomyTachyphylaxisGasesLigationLiver DiseasesLiver Cirrhosis, ExperimentalBlood PressureHypertension, RenalLiver Diseases, ParasiticSclerotherapyDogsSplenic DiseasesRats, Sprague-DawleyRegional Blood FlowAntihypertensive AgentsHematemesisVascular ResistanceHypertension, RenovascularTime FactorsLiver TransplantationBudd-Chiari SyndromeLiver Cirrhosis, AlcoholicFatty Acids, VolatileHepatopulmonary SyndromeHepatic Stellate CellsVaricose VeinsHypertension, MalignantHemodynamicsLiver Function TestsGlucoseCarbon TetrachlorideInfusions, IntravenousTreatment OutcomeMelenaIntestinal AbsorptionBlood GlucoseSchistosomiasis mansoniInsulinVena Cava, InferiorRenal VeinsRetrospective StudiesLiver NeoplasmsCollateral CirculationHydrothoraxLypressinHepatectomyVenous ThrombosisStomach DiseasesRisk FactorsSclerosing SolutionsElasticity Imaging TechniquesArteriovenous FistulaEpinephrineFollow-Up StudiesHemostasis, EndoscopicCholestasisRats, WistarHypertension, Pregnancy-InducedDisease Models, AnimalBile DuctsHepatorenal SyndromePostoperative ComplicationsEnbucrilateLiver Cirrhosis, BiliaryBlood Pressure DeterminationHemorrhageNitric OxideHepatomegalyColitis, IschemicTomography, X-Ray ComputedChronic Disease