Saphenous VeinVeinsVaricose VeinsFemoral VeinVenous InsufficiencyGraft Occlusion, VascularPortal VeinJugular VeinsPopliteal VeinMammary ArteriesTissue and Organ HarvestingCoronary Artery BypassVascular PatencyPulmonary VeinsUltrasonography, Doppler, DuplexVascular Surgical ProceduresLegLaser TherapyIliac VeinUmbilical VeinsMesenteric VeinsRenal VeinsEcchymosisSclerotherapyAngioplasty, LaserVascular GraftingTreatment OutcomePopliteal ArteryHepatic VeinsVenous ValvesPolytetrafluoroethyleneFemoral ArterySclerosing SolutionsMuscle, Smooth, VascularSumatriptanTime FactorsAngioscopyRadial ArterySubclavian VeinAxillary VeinFollow-Up StudiesSplenic VeinAneurysmPostoperative ComplicationsThoracic ArteriesCerebral VeinsBlood Vessel ProsthesisEndoscopyAnastomosis, SurgicalIschemiaEndothelium, VascularReoperationTibial ArteriesRetinal VeinVenous ThrombosisStentsAzygos VeinBrachiocephalic VeinsVaricose UlcerPhlebitisProspective StudiesVasoconstrictor AgentsLower ExtremityGroinUltrasonography, Doppler, ColorCoronary AngiographyDogsBlood Vessel Prosthesis ImplantationLigationPhlebographyUltrasonography, InterventionalRetinal Vein OcclusionVenous PressureInternal Mammary-Coronary Artery AnastomosisArterial Occlusive DiseasesNorepinephrineEmbolic Protection DevicesRetrospective StudiesThighMethiothepinEmbolismRecurrenceMethoxamineLysergic AcidVasoconstrictionConstriction, PathologicTransplantation, AutologousTunica IntimaArteriesInguinal CanalCatheterization, PeripheralMuscle ContractionThrombophlebitisParesthesiaThrombosisArteriovenous Shunt, SurgicalFasciaStockings, CompressionRegional Blood FlowHyperplasia