Celiac ArteryMesenteric Artery, SuperiorMesenteric ArteriesSuperior Mesenteric Artery SyndromeMesenteric Vascular OcclusionMesenteric Artery, InferiorArteriesSplenic ArterySplanchnic CirculationDuodenostomyAneurysmConstriction, PathologicHepatic ArteryRenal ArteryTomography, X-Ray ComputedAngiographyAbdominal PainPulmonary ArteryArterial Occlusive DiseasesIschemiaMesenteric VeinsCarotid ArteriesCerebral ArteriesBlood Vessel Prosthesis ImplantationVisceraFemoral ArteryReperfusion InjuryStentsLigamentsAneurysm, DissectingBasilar ArteryVenous CutdownVasodilationAorta, AbdominalVasoconstrictionIliac ArteryTreatment OutcomeTuberculosis, CardiovascularDuodenal ObstructionMuscle, Smooth, VascularVascular Surgical ProceduresAortic Aneurysm, ThoracicCeliac PlexusAortographyEndovascular ProceduresVasoconstrictor AgentsRenal VeinsVertebral ArteryAnastomosis, SurgicalCoronary Artery BypassSplenic InfarctionJejunostomyTime FactorsUltrasonography, DopplerVasodilator AgentsRadial ArteryReplantationMammary ArteriesAngioplasty, BalloonEmbolization, TherapeuticRegional Blood FlowSubclavian ArteryRats, WistarRadiography, InterventionalCarotid Artery, InternalEndothelium, VascularAortic Aneurysm, AbdominalIntestinesBlood Vessel ProsthesisVascular Access DevicesAneurysm, FalsePancreaticoduodenectomyNorepinephrineRetrospective StudiesCarotid Artery DiseasesIntestine, SmallRats, Sprague-DawleyPhenylephrineBrachial ArteryBlood PressurePortal VeinAcetylcholineCoronary VesselsSyndromeEnterostomyCarotid Artery, CommonBiological FactorsAneurysm, RupturedNitric OxideMesenteryDecompression, SurgicalEmbolismFollow-Up StudiesOphthalmic ArteryMuscle ContractionDose-Response Relationship, DrugRats, Inbred WKYVascular DiseasesRenal Artery ObstructionParenteral Nutrition, Home Total