Peripheral Vascular DiseasesVascular DiseasesSalvage TherapyAmputationIntermittent ClaudicationLimb SalvageLegGangreneIschemiaRisk FactorsDiabetic AngiopathiesArteriosclerosisFemoral ArteryVascular Surgical ProceduresLower ExtremityFootAnkleArterial Occlusive DiseasesAngiographyRetrospective StudiesTreatment OutcomeFoot UlcerDiabetes ComplicationsTime FactorsToesProspective StudiesMetatarsusDiabetic FootCardiovascular DiseasesArteriosclerosis ObliteransPeripheral Arterial DiseaseLeg UlcerDiabetic NeuropathiesPeripheral NervesBlood Gas Monitoring, TranscutaneousFollow-Up StudiesArtificial LimbsCerebrovascular DisordersRisk AssessmentAmputation StumpsBrachial ArteryCoronary DiseasePopliteal ArteryComorbidityVascular PatencyDiabetes MellitusAngioplasty, BalloonPostoperative ComplicationsRenal DialysisHomocysteineKidney Failure, ChronicFoot DiseasesThromboangiitis ObliteransCoronary Artery BypassCohort StudiesArteriovenous Shunt, SurgicalPredictive Value of TestsStrokeSeverity of Illness IndexHypertensionRegional Blood FlowUltrasonography, Doppler, DuplexPrevalenceAge FactorsAtherosclerosisPlatelet Aggregation InhibitorsDiabetes Mellitus, Type 2Collagen DiseasesLogistic ModelsAngioplastyArteriesEndothelium, VascularNeovascularization, PhysiologicBlood PressureAortic DiseasesChi-Square DistributionCase-Control StudiesPrognosisPeripheral Nervous SystemHyperlipoproteinemia Type IVRenal Artery ObstructionMultivariate AnalysisCoronary Artery DiseaseBiological MarkersThrombosisPeripheral Nervous System DiseasesProportional Hazards ModelsCarotid StenosisRecurrenceCarotid Artery DiseasesMyocardial InfarctionSurvival RateSurvival AnalysisRenal InsufficiencyFees and ChargesElectric Stimulation TherapyIncidenceExtremitiesIliac ArteryGraft Occlusion, Vascular