Hypertension, PortalPortal VeinPortal PressureEsophageal and Gastric VaricesPortal SystemHypertensionPortasystemic Shunt, SurgicalSplenic VeinLiver CirrhosisHypertension, PulmonaryGastrointestinal HemorrhageLiver CirculationHypersplenismVenous PressurePortasystemic Shunt, Transjugular IntrahepaticAscitesSplenorenal Shunt, SurgicalPortographySplenic ArteryPortacaval Shunt, SurgicalHepatic VeinsSplenectomySplenomegalySplanchnic CirculationLigationMesenteric VeinsBlood PressureHypertension, RenalSclerotherapyLiver Cirrhosis, ExperimentalLiver Diseases, ParasiticLiverSplenic DiseasesHepatic EncephalopathyAntihypertensive AgentsHematemesisLiver DiseasesHypertension, RenovascularHepatopulmonary SyndromeLiver Cirrhosis, AlcoholicBudd-Chiari SyndromeHypertension, MalignantVaricose VeinsLiver TransplantationHemodynamicsHepatic ArteryMelenaSchistosomiasis mansoniTreatment OutcomeRenal VeinsCollateral CirculationLypressinLiver Function TestsStomach DiseasesVenous ThrombosisSclerosing SolutionsVena Cava, InferiorElasticity Imaging TechniquesHemostasis, EndoscopicRisk FactorsCarbon TetrachlorideRetrospective StudiesArteriovenous FistulaVascular ResistanceHydrothoraxRats, Sprague-DawleyHypertension, Pregnancy-InducedFollow-Up StudiesHepatorenal SyndromeEnbucrilateBlood Pressure DeterminationColitis, IschemicTime FactorsGastric Antral Vascular EctasiaNostrumsNitric OxideHemorrhagePostoperative ComplicationsLiver Cirrhosis, BiliaryCholestasisVasodilator AgentsAzygos VeinChronic DiseaseProspective StudiesPhlebographyVasoconstrictor AgentsOcular HypertensionPulmonary ArterySeverity of Illness IndexAngiographyRegional Blood FlowEndoscopyDisease Models, AnimalEndoscopy, GastrointestinalFocal Nodular HyperplasiaKidneyAdrenergic beta-AntagonistsHepatomegalyRats, WistarBile Ducts