Mesenteric Artery, SuperiorMesenteric ArteriesSuperior Mesenteric Artery SyndromeMesenteric Vascular OcclusionMesenteric Artery, InferiorCeliac ArteryArteriesDuodenostomySplanchnic CirculationRenal ArteryMesenteric VeinsSplenic ArteryHepatic ArteryVasodilationVasoconstrictionPulmonary ArteryAngiographyTomography, X-Ray ComputedMuscle, Smooth, VascularDuodenal ObstructionAneurysmReperfusion InjuryVasoconstrictor AgentsCerebral ArteriesIschemiaCarotid ArteriesFemoral ArteryVasodilator AgentsRenal VeinsJejunostomyBasilar ArteryRats, WistarIliac ArteryConstriction, PathologicUltrasonography, DopplerEndothelium, VascularVisceraNorepinephrineBiological FactorsIntestinesPhenylephrineAneurysm, DissectingAbdominal PainBlood Vessel Prosthesis ImplantationRegional Blood FlowRats, Sprague-DawleyStentsVascular Surgical ProceduresTreatment OutcomeAcetylcholineIntestine, SmallAorta, AbdominalAneurysm, FalsePortal VeinBlood PressureEnterostomyTime FactorsNitric OxideVertebral ArteryCoronary Artery BypassRats, Inbred WKYMesenteryArterial Occlusive DiseasesEndovascular ProceduresMyographyRadial ArteryDose-Response Relationship, DrugMuscle ContractionMammary ArteriesAneurysm, RupturedEmbolismCarotid Artery, InternalAortic Aneurysm, AbdominalPotassium ChlorideBlood Flow VelocitySubclavian ArteryParenteral Nutrition, Home TotalVascular DiseasesAnastomosis, SurgicalAortographyMuscle RelaxationCarotid Artery DiseasesNG-Nitroarginine Methyl EsterVascular ResistanceCoronary VesselsEmbolization, TherapeuticBrachial ArteryAorta, ThoracicAortaIndomethacinGastric DilatationRefeeding SyndromeSuperior ColliculiDogsVena Cava, SuperiorAngioplasty, BalloonLigationRetrospective StudiesEndothelium-Dependent Relaxing FactorsCarotid Artery, Common