Venous ThrombosisPortal VeinThrombosisLiver CirrhosisHypertension, PortalHypertensionVeinsThrombophlebitisLiver Cirrhosis, BiliaryPortal SystemFemoral VeinHypertension, PulmonaryLiver Cirrhosis, AlcoholicIliac VeinUpper Extremity Deep Vein ThrombosisMesenteric VeinsPhlebographySplenic VeinRenal VeinsAnticoagulantsPulmonary EmbolismVaricose VeinsPortal PressureJugular VeinsSaphenous VeinPopliteal VeinSubclavian VeinSinus Thrombosis, IntracranialIntracranial ThrombosisCoronary ThrombosisLiver Cirrhosis, ExperimentalVena Cava, InferiorEsophageal and Gastric VaricesHypertension, RenalHepatic VeinsFibrin Fibrinogen Degradation ProductsRisk FactorsHeparin, Low-Molecular-WeightBlood PressureTreatment OutcomePortasystemic Shunt, SurgicalBudd-Chiari SyndromeAxillary VeinThrombophiliaLiver CirculationPostthrombotic SyndromeCerebral VeinsCarotid Artery ThrombosisRetrospective StudiesUltrasonography, Doppler, DuplexAntihypertensive AgentsTime FactorsHypertension, RenovascularPulmonary VeinsLiver TransplantationProspective StudiesVenous ThromboembolismFollow-Up StudiesHeparinLiver NeoplasmsCarcinoma, HepatocellularProtein S DeficiencyFactor VAscitesLegThromboembolismThrombectomyHypertension, MalignantGastrointestinal HemorrhageTomography, X-Ray ComputedVena Cava FiltersPortacaval Shunt, SurgicalLiverFibrinolytic AgentsWarfarinSplenorenal Shunt, SurgicalMesenteric Vascular OcclusionPregnancy Complications, CardiovascularPostoperative ComplicationsHemorrhagePlethysmography, ImpedancePostphlebitic SyndromeStockings, CompressionSplenectomyRecurrenceLiver DiseasesIntermittent Pneumatic Compression DevicesUltrasonography, DopplerHepatic ArteryIncidenceHypersplenismLigationUmbilical VeinsUltrasonography, Doppler, ColorProthrombinActivated Protein C ResistanceThrombolytic TherapyVenous PressureRisk AssessmentBandages