Graft Occlusion, VascularVascular PatencySaphenous VeinPolytetrafluoroethyleneArterial Occlusive DiseasesBlood Vessel ProsthesisGraft SurvivalVeinsAmputationIschemiaPopliteal ArteryVascular GraftingBlood Vessel Prosthesis ImplantationFemoral ArteryVascular Surgical ProceduresLegPopliteal VeinCoronary Artery BypassPolyethylene TerephthalatesTreatment OutcomeTibial ArteriesReoperationPostoperative ComplicationsInguinal CanalFemoral VeinLower ExtremityCoronary OcclusionCoronary-Subclavian Steal SyndromeTime FactorsLimb SalvageBalloon OcclusionRetinal Vein OcclusionThrombosisFollow-Up StudiesRetinal Artery OcclusionPeripheral Vascular DiseasesIntermittent ClaudicationUltrasonography, Doppler, DuplexRetrospective StudiesStentsAspirinMarylandDental OcclusionProspective StudiesCoronary AngiographyTomography, X-Ray ComputedFibrinolytic AgentsInternational Normalized RatioBostonArteriesInfarction, Middle Cerebral ArteryRisk FactorsTexasBrain IschemiaAnticoagulantsCollateral CirculationRisk AssessmentMesenteric Vascular OcclusionConstrictionKidney TransplantationCarotid Artery, InternalDental Occlusion, CentricTherapeutic OcclusionConstriction, PathologicCerebral AngiographyDogsCerebral InfarctionEmbolization, TherapeuticCerebral ArteriesAngiographyPrimary Graft DysfunctionCerebral Arterial DiseasesCerebrovascular CirculationAnastomosis, SurgicalIliac ArteryDisease Models, AnimalReperfusionLiver TransplantationIschemic Attack, TransientArteriovenous Shunt, SurgicalTransplantsProsthesis DesignJugular VeinsRegional Blood FlowCarotid Artery DiseasesCarotid Artery ThrombosisCoronary CirculationReperfusion InjuryHemodynamicsCoronary VesselsBlood Flow VelocityDental Occlusion, BalancedAorta, AbdominalCoronary DiseaseGraft vs Host DiseaseThrombectomyMyocardial InfarctionIntracranial AneurysmAngioplasty, BalloonCerebral Revascularization