Mesenteric Artery, InferiorMesenteric Artery, SuperiorMesenteric ArteriesMesenteric Vascular OcclusionCeliac ArterySuperior Mesenteric Artery SyndromeArteriesSplanchnic CirculationDuodenostomyAortic Aneurysm, AbdominalAneurysmTomography, X-Ray ComputedBlood Vessel Prosthesis ImplantationAorta, AbdominalEndoleakColitis, IschemicRenal ArteryUltrasonography, DopplerIschemiaEmbolization, TherapeuticMesenteric VeinsRetroperitoneal SpaceSplenic ArteryPulmonary ArteryAortographyVasodilationVasoconstrictionMuscle, Smooth, VascularHepatic ArteryStentsRegional Blood FlowAngiographyCerebral ArteriesTreatment OutcomeCarotid ArteriesFemoral ArteryVasoconstrictor AgentsBasilar ArteryVasodilator AgentsDuodenal ObstructionReperfusion InjuryPostoperative ComplicationsIliac ArteryBiological FactorsRenal VeinsRats, WistarEndothelium, VascularNorepinephrineLaparoscopyVena Cava, InferiorPhenylephrineConstriction, PathologicRetrospective StudiesJejunostomyAcetylcholineVisceraRats, Sprague-DawleyVertebral ArteryIntestinesAneurysm, DissectingCoronary Artery BypassVascular Surgical ProceduresBlood PressureAbdominal PainNitric OxideRats, Inbred WKYTime FactorsMyographyRadial ArteryAneurysm, FalseMammary ArteriesIntestine, SmallInferior ColliculiMuscle ContractionDose-Response Relationship, DrugPortal VeinCarotid Artery, InternalArterial Occlusive Diseases