Gastric BypassCoronary Artery Bypass, Off-PumpVascular PatencySaphenous VeinPostoperative ComplicationsGraft Occlusion, VascularTreatment OutcomePopliteal ArteryPolytetrafluoroethyleneBlood Vessel ProsthesisObesity, MorbidIschemiaVascular Surgical ProceduresTibial ArteriesHeart Arrest, InducedAnastomosis, SurgicalBlood Vessel Prosthesis ImplantationArterial Occlusive DiseasesReoperationMammary ArteriesLegTime FactorsVeinsPostoperative PeriodVascular GraftingFollow-Up StudiesCardiac Surgical ProceduresExtracorporeal CirculationLimb SalvageRetrospective StudiesAxillary ArteryAmputationProspective StudiesInternal Mammary-Coronary Artery AnastomosisCoronary Artery DiseaseCerebral RevascularizationLower ExtremityInguinal CanalCoronary DiseaseHeart Bypass, LeftIliac ArteryPolyethylene TerephthalatesPeripheral Vascular DiseasesIntraoperative CareAnastomosis, Roux-en-YPostoperative CareLife TablesRisk FactorsHypothermia, InducedPostoperative HemorrhageStentsHospital MortalitySternumIntraoperative PeriodMonitoring, IntraoperativeLength of StayConstriction, PathologicIntraoperative ComplicationsSurgical Procedures, Minimally InvasiveTissue and Organ HarvestingRisk AssessmentDNA-Directed DNA PolymerasePreoperative CareSternotomyCirculatory Arrest, Deep Hypothermia InducedThoracic ArteriesMyocardial InfarctionAortic DiseasesIntra-Aortic Balloon PumpingGastroplastyAngina PectorisAngiographyAorta, AbdominalHemodynamicsWeight LossAngioplasty, BalloonGangreneOxygenatorsIntermittent ClaudicationBlood Loss, SurgicalJejunumChi-Square DistributionUltrasonography, Doppler, DuplexCoronary StenosisThoracotomyHeart Valve Prosthesis ImplantationJugular VeinsCardiovascular Surgical ProceduresAortographySurgical Wound InfectionConstrictionSurgical Procedures, ElectiveAprotininProsthesis DesignSubclavian ArteryTomography, X-Ray ComputedPreoperative PeriodAneurysmHeparin AntagonistsSurvival Rate