Venous PressurePortal PressureHypertension, PortalHepatic VeinsEsophageal and Gastric VaricesLiver CirrhosisPortal VeinLiver CirculationAzygos VeinNadololGastrointestinal HemorrhageLiver Cirrhosis, AlcoholicVaricose VeinsCentral Venous PressureBlood Pressure DeterminationHemodynamicsAdrenergic beta-AntagonistsPressureSplanchnic CirculationVeinsBlood PressurePortal SystemLiverHepatic ArteryLiver Function TestsMesenteric VeinsHydrostatic PressureJugular VeinsSaphenous VeinTransducers, PressureDogsSplenic VeinFemoral VeinBlood Flow VelocityRegional Blood FlowPulmonary VeinsVascular ResistancePortasystemic Shunt, SurgicalIntracranial PressureAortic Valve StenosisHepatectomyVena Cava, InferiorConstriction, PathologicTime FactorsPortographyRenal VeinsAortic CoarctationVenous ThrombosisCardiac OutputCapillary ResistanceHeart RateLiver TransplantationVentricular PressureLiver NeoplasmsBlood VolumeTreatment OutcomeArterial PressurePortacaval Shunt, SurgicalIliac Vein