Myocardial IschemiaIschemiaBrain IschemiaMyocardial Reperfusion InjuryMyocardiumCoronary CirculationCoronary DiseaseElectrocardiographyReperfusion InjuryExercise TestMyocardial InfarctionMyocardial ReperfusionHeartAngina PectorisCardiotonic AgentsIschemic Preconditioning, MyocardialHemodynamicsDogsElectrocardiography, AmbulatoryCoronary VesselsTime FactorsDisease Models, AnimalHeart RateCoronary AngiographyTomography, Emission-Computed, Single-PhotonMyocardial ContractionArrhythmias, CardiacReperfusionRats, Sprague-DawleyMyocardial Perfusion ImagingVentricular Function, LeftCreatine KinaseIschemic PreconditioningIschemic Attack, TransientRats, WistarWarm IschemiaDipyridamoleMyocardial StunningPerfusionBlood PressureThallium RadioisotopesAdenosineCoronary Artery DiseaseCollateral CirculationDobutamineMyocytes, CardiacSwineIntraoperative ComplicationsVasodilator AgentsChest PainEchocardiographyCold IschemiaEchocardiography, StressTroponin IRabbitsHeart VentriclesIschemic PostconditioningGerbillinaeSpinal Cord IschemiaVentricular FibrillationTroponin TAcute DiseaseMitochondria, HeartNitroglycerinAnesthesiaLactic AcidCoronary StenosisAngina, UnstableCardiovascular AgentsProspective StudiesSwine, MiniaturePredictive Value of TestsHeart Function TestsRandom AllocationNecrosisConstrictionAngina Pectoris, VariantCoronary Vessel AnomaliesNeuroprotective AgentsLactatesL-Lactate DehydrogenaseBiological MarkersVentricular Dysfunction, LeftInfarction, Middle Cerebral ArteryMice, Inbred C57BLPeroxidaseCoronary VasospasmAdenosine TriphosphateAdrenergic beta-AntagonistsCoronary Artery BypassApoptosisMicrovascular AnginaOxygen ConsumptionErgonovineDiltiazemRisk FactorsPhosphocreatineTechnetium Tc 99m SestamibiAngioplasty, Balloon, CoronarySensitivity and Specificity