Mesenteric Artery, InferiorMesenteric Artery, SuperiorMesenteric ArteriesMesenteric Vascular OcclusionTruncus ArteriosusCeliac ArterySuperior Mesenteric Artery SyndromeArteriesSeromaSplanchnic CirculationRenal ArteryPulmonary ArteryDuodenostomyAneurysmTomography, X-Ray ComputedAortic Aneurysm, AbdominalBlood Vessel Prosthesis ImplantationCerebral ArteriesSplenic ArteryCarotid ArteriesFemoral ArteryMesenteric VeinsVasodilationAorta, AbdominalVasoconstrictionUltrasonography, DopplerMuscle, Smooth, VascularBasilar ArteryEmbolization, TherapeuticHepatic ArteryEndoleakHeartColitis, IschemicIschemiaIliac ArteryRetroperitoneal SpaceVasoconstrictor AgentsAngiographyStentsVasodilator AgentsAortographyRegional Blood FlowTreatment OutcomeVertebral ArteryCoronary Artery BypassEndothelium, VascularBiological FactorsRadial ArteryMammary ArteriesNorepinephrineRats, WistarCarotid Artery, InternalPhenylephrineSubclavian ArteryAcetylcholineReperfusion InjuryPostoperative ComplicationsConstriction, PathologicCarotid Artery DiseasesYolk SacRats, Sprague-DawleyDuodenal ObstructionCoronary VesselsBrachial ArteryBlood PressureMyographyRenal VeinsRetrospective StudiesTime FactorsNitric OxideRats, Inbred WKYCarotid Artery, CommonArterial Occlusive DiseasesMuscle ContractionDose-Response Relationship, DrugVascular Surgical ProceduresVisceraAneurysm, DissectingJejunostomyLaparoscopyMuscle RelaxationAneurysm, FalseOphthalmic ArteryRenal Artery ObstructionVena Cava, InferiorIntestinesPotassium ChlorideUmbilical ArteriesMiddle Cerebral ArteryDogsThoracic ArteriesPortal VeinAbdominal PainNG-Nitroarginine Methyl EsterTemporal ArteriesIntestine, SmallAneurysm, RupturedEndothelium-Dependent Relaxing FactorsBronchial ArteriesAorta