Esophageal and Gastric VaricesEnbucrilateGastrointestinal HemorrhageBalloon OcclusionHemostasis, EndoscopicTissue AdhesivesCyanoacrylatesSclerotherapySplenic VeinMelenaHypertension, PortalPortographyHematemesisSclerosing SolutionsEndoscopy, GastrointestinalPortasystemic Shunt, SurgicalIopamidolEthiodized OilPortal VeinPortasystemic Shunt, Transjugular IntrahepaticLiver CirrhosisVaricose VeinsTomography, X-Ray ComputedGastroscopyEndoscopySplenic ArteryInjectionsSplenomegalyEmbolization, TherapeuticRecurrenceFemoral VeinCatheterizationEmergenciesTreatment OutcomeCatheters, IndwellingEsophagoscopy