Coronary CirculationCoronary VesselsAdenosineVascular ResistanceVasodilationCoronary AngiographyDogsCoronary Artery DiseaseHemodynamicsAngioplasty, Balloon, CoronaryCoronary StenosisCoronary VasospasmCoronary DiseaseCoronary Artery BypassVasodilator AgentsBlood Flow VelocityHeartCollateral CirculationAcetylcholineNitric OxideAngina Pectoris, VariantMyocardial InfarctionVasomotor SystemMyocardiumBlood PressureBlood CirculationMyocardial IschemiaCoronary AneurysmRegional Blood FlowPapaverineEndothelium, VascularNitroglycerinomega-N-MethylarginineHyperemiaVasoconstrictionCoronary ThrombosisCardiac CatheterizationMicrocirculationModels, CardiovascularCoronary RestenosisSwineTime FactorsPerfusionArteriovenous AnastomosisCoronary OcclusionStentsRisk FactorsNitroprussideHeart RateTreatment OutcomeOxygen ConsumptionElectrocardiographyExtracorporeal CirculationPercutaneous Coronary InterventionNitroarginineMyocardial ContractionBradykininPropranololNitric Oxide SynthaseDose-Response Relationship, DrugComplianceCoronary Care UnitsMyocardial ReperfusionPulmonary CirculationAngina PectorisInfusions, Intra-ArterialCoronary Vessel AnomaliesAnalysis of VariancePulmonary AtresiaBiological MarkersGlyburideVentricular Function, LeftArteriesOxygenProspective StudiesMyocardial Reperfusion InjuryVasoconstrictor AgentsFollow-Up StudiesVentricular FunctionAortaEchocardiographyDiastoleHeart VentriclesIndomethacinMuscle, Smooth, VascularCardiac OutputCardiac Pacing, ArtificialAdrenergic beta-AntagonistsNitritesUltrasonography, InterventionalNG-Nitroarginine Methyl EsterEndothelin-1CalcinosisArgininePredictive Value of TestsCoronary Artery Bypass, Off-PumpMyocardial RevascularizationAngina, UnstableCase-Control StudiesEnzyme Inhibitors