Heart RateCoronary VesselsCoronary Artery DiseaseCoronary Artery BypassCoronary AngiographyHeartCoronary CirculationCoronary DiseaseArteriesCoronary StenosisAngioplasty, Balloon, CoronaryMyocardial InfarctionCoronary VasospasmCoronary AneurysmPulmonary ArteryElectrocardiographyRisk FactorsHemodynamicsTime FactorsTreatment OutcomeMyocardial IschemiaCoronary Artery Bypass, Off-PumpBlood PressureDogsProspective StudiesCarotid ArteriesHeart FailureCoronary ThrombosisFollow-Up StudiesMammary ArteriesFemoral ArteryCoronary OcclusionExercise TestCalcinosisStentsCoronary RestenosisVasodilator AgentsPredictive Value of TestsMyocardiumVasodilationHeart DiseasesCoronary Vessel AnomaliesRadial ArteryRenal ArteryCerebral ArteriesTomography, X-Ray ComputedMesenteric ArteriesHeart Rate, FetalHeart TransplantationEchocardiographyCardiac CatheterizationEndothelium, VascularUltrasonography, InterventionalPercutaneous Coronary InterventionRisk AssessmentBasilar ArteryVentricular Function, LeftRetrospective StudiesMyocardial RevascularizationSwineAngina PectorisAutonomic Nervous SystemNitroglycerinMyocardial ContractionSeverity of Illness IndexVasoconstrictionStroke VolumeAdrenergic beta-AntagonistsIliac ArteryHeart Defects, CongenitalCarotid Artery DiseasesBrachial ArteryBiological MarkersMuscle, Smooth, VascularVertebral ArteryPostoperative ComplicationsBlood Flow VelocityThoracic ArteriesSensitivity and SpecificityAngina, UnstableCardiotonic AgentsSinus of ValsalvaPrognosisChest PainRegional Blood FlowTomography, Emission-Computed, Single-PhotonSubclavian ArteryMucocutaneous Lymph Node SyndromeAdenosineVentricular Dysfunction, LeftElectrocardiography, AmbulatoryDipyridamolePlatelet Aggregation InhibitorsHeart Function TestsCarotid Artery, InternalHeart Arrest, InducedHeart AtriaCoronary Care UnitsDose-Response Relationship, DrugSympathetic Nervous System