Mesenteric Artery, InferiorMesenteric Artery, SuperiorMesenteric ArteriesCeliac ArteryMesenteric Vascular OcclusionSuperior Mesenteric Artery SyndromeArteriesSplenic ArterySplanchnic CirculationHepatic ArteryRenal ArteryAneurysmAorta, AbdominalTomography, X-Ray ComputedPulmonary ArteryDuodenostomyBlood Vessel Prosthesis ImplantationAortic Aneurysm, AbdominalCerebral ArteriesCarotid ArteriesFemoral ArteryMesenteric VeinsVasodilationVasoconstrictionUltrasonography, DopplerAngiographyMuscle, Smooth, VascularBasilar ArteryEmbolization, TherapeuticEndoleakColitis, IschemicIschemiaConstriction, PathologicTreatment OutcomeIliac ArteryCeliac PlexusRetroperitoneal SpaceVasoconstrictor AgentsArterial Occlusive DiseasesStentsVasodilator AgentsNeoplasms, Post-TraumaticAortographyRegional Blood FlowVertebral ArteryCoronary Artery BypassVisceraBiological FactorsEndothelium, VascularCadaverVascular Surgical ProceduresRadial ArteryMammary ArteriesNorepinephrineRats, WistarAnastomosis, SurgicalCarotid Artery, InternalSubclavian ArteryPhenylephrineAcetylcholineReperfusion InjuryPostoperative ComplicationsCarotid Artery DiseasesRats, Sprague-DawleyDuodenal ObstructionCoronary VesselsBrachial ArteryBlood PressureMyographyRenal VeinsRetrospective StudiesTime FactorsNitric OxideCarotid Artery, CommonRats, Inbred WKYMuscle ContractionDose-Response Relationship, DrugAneurysm, DissectingJejunostomyMuscle RelaxationLaparoscopyAneurysm, FalseOphthalmic ArteryRenal Artery ObstructionVena Cava, InferiorIntestinesPotassium ChlorideUmbilical ArteriesMiddle Cerebral ArteryDogsPortal VeinThoracic ArteriesAbdominal PainNG-Nitroarginine Methyl EsterTemporal ArteriesAneurysm, RupturedAorta, ThoracicBronchial ArteriesIntestine, SmallEndothelium-Dependent Relaxing Factors