Saphenous VeinVeinsVaricose VeinsFemoral VeinPortal VeinJugular VeinsPulmonary VeinsVenous InsufficiencyGraft Occlusion, VascularPopliteal VeinIliac VeinUmbilical VeinsMesenteric VeinsRenal VeinsVascular PatencyTissue and Organ HarvestingUltrasonography, Doppler, DuplexMammary ArteriesHepatic VeinsCoronary Artery BypassVascular Surgical ProceduresLegSubclavian VeinSplenic VeinLaser TherapyCerebral VeinsAxillary VeinRetinal VeinSclerotherapyVascular GraftingAzygos VeinBrachiocephalic VeinsTreatment OutcomeEcchymosisVenous ValvesAngioplasty, LaserPopliteal ArteryPolytetrafluoroethyleneRetinal Vein OcclusionFemoral ArterySclerosing SolutionsVenous ThrombosisMuscle, Smooth, VascularTime FactorsAngioscopySumatriptanPhlebographyEndothelium, VascularRadial ArteryFollow-Up StudiesAneurysmAnastomosis, SurgicalPostoperative ComplicationsBlood Vessel ProsthesisIschemiaReoperationThoracic ArteriesEndoscopyUltrasonography, Doppler, ColorVaricose UlcerVenous PressureLower ExtremityPhlebitisLigationProspective StudiesThrombophlebitisVasoconstrictor AgentsDogsStentsVena Cava, InferiorBlood Vessel Prosthesis ImplantationGroinTibial ArteriesConstriction, PathologicRecurrenceNorepinephrineUltrasonography, InterventionalRetrospective StudiesArteriovenous Shunt, SurgicalThighArterial Occlusive DiseasesCatheter AblationVasoconstrictionCoronary AngiographyTunica IntimaArteriesInternal Mammary-Coronary Artery AnastomosisCatheterization, PeripheralThrombosisTransplantation, AutologousEmbolismEmbolic Protection DevicesMethiothepinArteriovenous FistulaVenae CavaeLysergic AcidInguinal CanalHyperplasiaStockings, CompressionRegional Blood Flow