Mesenteric ArteriesMesenteric Artery, SuperiorAngioplasty, BalloonAngioplasty, Balloon, CoronaryAngioplastyMesenteric Artery, InferiorArteriesMesenteric Vascular OcclusionCeliac ArteryStentsFemoral ArterySuperior Mesenteric Artery SyndromeRenal ArteryAngioplasty, LaserIliac ArteryPulmonary ArteryTreatment OutcomeConstriction, PathologicCarotid ArteriesMuscle, Smooth, VascularCoronary AngiographyCoronary Artery BypassRecurrenceCoronary DiseaseCerebral ArteriesCoronary VesselsVasodilationVasoconstrictionSplanchnic CirculationArterial Occlusive DiseasesAngiographySuperior ColliculiTime FactorsFollow-Up StudiesVena Cava, SuperiorBasilar ArteryMesenteric VeinsVasodilator AgentsVascular PatencyBiological FactorsVasoconstrictor AgentsMyocardial InfarctionPopliteal ArteryEndothelium, VascularVertebral ArteryRenal Artery ObstructionRadial ArterySplenic ArteryCarotid Artery, InternalSubclavian ArteryNorepinephrineHepatic ArteryMammary ArteriesProspective StudiesTomography, X-Ray ComputedIschemiaRats, WistarPhenylephrineAcetylcholineRetrospective StudiesSuperior Vena Cava SyndromeMyographyCarotid Artery, CommonCarotid Artery DiseasesRats, Sprague-DawleyAtherectomy, CoronaryDuodenostomyBlood PressureGraft Occlusion, VascularCarotid StenosisDose-Response Relationship, DrugCatheterizationAngina PectorisBrachial ArteryBlood Vessel Prosthesis ImplantationRats, Inbred WKYMuscle ContractionAneurysmNitric OxideMuscle RelaxationRabbitsRegional Blood FlowCarotid Artery InjuriesPostoperative ComplicationsCoronary CirculationThrombolytic TherapyVascular Surgical ProceduresUltrasonography, Doppler, DuplexEndothelium-Dependent Relaxing FactorsUltrasonography, DopplerDogsRisk FactorsRats, Inbred SHRSuperior Cervical GanglionAortaThoracic ArteriesMiddle Cerebral ArteryOphthalmic ArteryAortic CoarctationPotassium Chloride