Portal VeinPortal SystemVenous ThrombosisCarbadoxHypertension, PortalLiver CirculationMesenteric VeinsThrombosisPortasystemic Shunt, SurgicalLiverHepatic EncephalopathySplenorenal Shunt, SurgicalVeinsHepatic VeinsSplenic VeinHepatic ArteryBudd-Chiari SyndromePortal PressureEmbolism, AirLiver CirrhosisLiver TransplantationFemoral VeinEsophageal and Gastric VaricesPortacaval Shunt, SurgicalLiver NeoplasmsThrombophlebitisIliac VeinGlucoseWernicke EncephalopathySplenectomySaphenous VeinCarcinoma, HepatocellularVaricose VeinsAnticoagulantsRenal VeinsGastrointestinal HemorrhageJugular VeinsPhlebographyEncephalopathy, Bovine SpongiformTomography, X-Ray ComputedPortasystemic Shunt, Transjugular IntrahepaticHypersplenismUpper Extremity Deep Vein ThrombosisTreatment OutcomeVena Cava, InferiorPortographyProtein S DeficiencyPopliteal VeinLiver DiseasesSubclavian VeinRetrospective StudiesSplanchnic CirculationUltrasonography, DopplerChemoembolization, TherapeuticPostoperative ComplicationsBrain DiseasesUltrasonography, Doppler, ColorPulmonary VeinsPulmonary EmbolismAnastomosis, SurgicalProtein C DeficiencySplenomegalyTime FactorsAscitesHepatectomyDogsEmbolization, TherapeuticDiagnostic Techniques, SurgicalAngiographyTachyphylaxisSinus Thrombosis, IntracranialIntracranial ThrombosisLiving DonorsFollow-Up StudiesSclerotherapyGasesCoronary ThrombosisAxillary VeinCerebral VeinsProspective StudiesRegional Blood FlowHypertensive EncephalopathyUmbilical VeinsLigationFibrin Fibrinogen Degradation ProductsCoagulation Protein DisordersHeparin, Low-Molecular-WeightHypoxia-Ischemia, BrainRisk FactorsUltrasonography, Doppler, DuplexPreoperative CareYttrium RadioisotopesAcute DiseaseMagnetic Resonance ImagingPurpura, Thrombocytopenic, IdiopathicThrombophiliaInfusions, IntravenousPostthrombotic SyndromeHyperammonemiaSurvival Rate