Graft Occlusion, VascularVascular PatencySaphenous VeinPolytetrafluoroethyleneBlood Vessel ProsthesisArterial Occlusive DiseasesGraft SurvivalVeinsAmputationIschemiaPopliteal ArteryBlood Vessel Prosthesis ImplantationBlood VesselsVascular GraftingFemoral ArteryVascular Surgical ProceduresLegCoronary Artery BypassPopliteal VeinTreatment OutcomePolyethylene TerephthalatesTibial ArteriesReoperationPostoperative ComplicationsInguinal CanalTime FactorsFemoral VeinCoronary OcclusionLower ExtremityCoronary-Subclavian Steal SyndromeLimb SalvageThrombosisBalloon OcclusionFollow-Up StudiesRetinal Vein OcclusionRetinal Artery OcclusionPeripheral Vascular DiseasesStentsIntermittent ClaudicationRetrospective StudiesUltrasonography, Doppler, DuplexLymphatic VesselsArteriesCoronary VesselsCoronary AngiographyAspirinRetinal VesselsTomography, X-Ray ComputedProspective StudiesMarylandFibrinolytic AgentsDental OcclusionBostonInternational Normalized RatioInfarction, Middle Cerebral ArteryCollateral CirculationRisk FactorsBrain IschemiaAnticoagulantsTexasCerebral ArteriesConstrictionRisk AssessmentConstriction, PathologicDogsMesenteric Vascular OcclusionCerebral AngiographyCarotid Artery, InternalDisease Models, AnimalCerebrovascular CirculationEmbolization, TherapeuticRegional Blood FlowKidney TransplantationCerebral InfarctionIliac ArteryDental Occlusion, CentricTherapeutic OcclusionAnastomosis, SurgicalBlood Flow VelocityCerebral Arterial DiseasesEndothelium, VascularAngiographyReperfusionPrimary Graft DysfunctionIschemic Attack, TransientMagnetic Resonance AngiographyCoronary CirculationLiver TransplantationProsthesis DesignHemodynamicsJugular VeinsRetinal VeinArteriovenous Shunt, SurgicalCoronary DiseaseAngioplasty, BalloonAorta, AbdominalTransplantsCarotid Artery DiseasesNeovascularization, PhysiologicMyocardial Infarction