Hepatopulmonary SyndromeSyndromeHypertension, PortalCommon Bile DuctLiver TransplantationLiver CirrhosisPentoxifyllineBlood Gas AnalysisBacterial TranslocationTechnetium Tc 99m Aggregated AlbuminPulmonary CirculationPortasystemic Shunt, Transjugular IntrahepaticAnoxiaLiver FailureEndotoxemiaLung DiseasesLiver DiseasesLigationLiver Function TestsLung