Mesenteric ArteriesMesenteric Artery, SuperiorMesenteric Artery, InferiorAortic DiseasesConstrictionAorta, AbdominalArterial Occlusive DiseasesArteriesSpinal Cord IschemiaBalloon OcclusionTreatment OutcomeParaplegiaMesenteric Vascular OcclusionEmbolectomyIschemiaVena Cava, InferiorCeliac ArteryEndarterectomyAorta, ThoracicSuperior Mesenteric Artery SyndromeTime FactorsAortographyPulmonary ArteryCerebral ArteriesReperfusion InjuryAortaRenal ArteryBlood PressureReperfusionFemoral ArteryInferior ColliculiIschemic PreconditioningDogsCarotid ArteriesRegional Blood FlowVasodilationHemodynamicsMuscle, Smooth, VascularVasoconstrictionBasilar ArteryBlood VolumeSplanchnic CirculationRats, Sprague-DawleyCatheterizationRetinal Artery OcclusionAortic Aneurysm, AbdominalIliac ArteryCoronary OcclusionMesenteric VeinsCarotid Artery, InternalSpinal CordVasodilator AgentsAcute DiseaseBiological FactorsVertebral ArteryVasoconstrictor AgentsDisease Models, AnimalOutcome Assessment (Health Care)Tomography, X-Ray ComputedEndothelium, VascularRetrospective StudiesSplenic ArteryCoronary Artery BypassAngiographyRetinal Vein OcclusionFollow-Up StudiesHepatic ArterySwineRats, WistarCarotid Artery DiseasesNorepinephrineCoronary VesselsRadial ArteryInfarction, Middle Cerebral ArteryPhenylephrineSubclavian ArteryStentsMammary ArteriesProspective StudiesMyographyAcetylcholineConstriction, PathologicEmbolization, TherapeuticPregnancy OutcomeDose-Response Relationship, DrugBrain IschemiaBrachial ArteryRats, Inbred WKYMuscle ContractionNitric OxideDuodenostomyCarotid Artery, CommonCerebral AngiographyMuscle RelaxationMiddle Cerebral ArteryAneurysmDental OcclusionRisk FactorsPostoperative ComplicationsCoronary Angiography