Hypertension, PortalPortal VeinPortal SystemPortal PressureEsophageal and Gastric VaricesHypertensionPortasystemic Shunt, SurgicalSplenic VeinLiver CirrhosisGastrointestinal HemorrhageHypertension, PulmonaryLiver CirculationHypersplenismVenous PressurePortasystemic Shunt, Transjugular IntrahepaticAscitesPortographySplenorenal Shunt, SurgicalPortacaval Shunt, SurgicalSplenic ArteryHepatic VeinsSplenectomySplenomegalyMesenteric VeinsSplanchnic CirculationLigationBlood PressureHypertension, RenalLiverSclerotherapyLiver Cirrhosis, ExperimentalLiver Diseases, ParasiticHepatic EncephalopathySplenic DiseasesLiver DiseasesAntihypertensive AgentsHematemesisHypertension, RenovascularHepatic ArteryLiver TransplantationLiver Cirrhosis, AlcoholicBudd-Chiari SyndromeHepatopulmonary SyndromeVaricose VeinsHypertension, MalignantHemodynamics