Myocardial IschemiaIschemiaBrain IschemiaMyocardial Reperfusion InjuryMyocardiumCoronary CirculationCoronary DiseaseElectrocardiographyReperfusion InjuryMyocardial InfarctionMyocardial ReperfusionCoronary OcclusionExercise TestDogsHeartBalloon OcclusionHemodynamicsAngina PectorisIschemic Preconditioning, MyocardialTime FactorsArterial Occlusive DiseasesCardiotonic AgentsDisease Models, AnimalCoronary VesselsRetinal Artery OcclusionRetinal Vein OcclusionReperfusionCollateral CirculationIschemic Attack, TransientHeart RateInfarction, Middle Cerebral ArteryCoronary AngiographyElectrocardiography, AmbulatoryRats, Sprague-DawleyArrhythmias, CardiacMyocardial ContractionIschemic PreconditioningTomography, Emission-Computed, Single-PhotonConstrictionRats, WistarVentricular Function, LeftBlood PressureCreatine KinaseMyocardial Perfusion ImagingDental OcclusionMyocardial StunningCerebral InfarctionPerfusionCerebrovascular CirculationMesenteric Vascular OcclusionSwineDipyridamoleWarm IschemiaAdenosineAcute DiseaseGerbillinaeIntraoperative ComplicationsCoronary Artery DiseaseVasodilator AgentsThallium RadioisotopesRabbitsNeuroprotective AgentsEchocardiographyDobutamineProspective StudiesMyocytes, CardiacHeart VentriclesRegional Blood FlowVentricular FibrillationCerebral ArteriesChest PainSpinal Cord IschemiaBrainIschemic PostconditioningCoronary StenosisCold IschemiaBlood Flow VelocityEchocardiography, StressTreatment OutcomeTroponin INitroglycerinPredictive Value of TestsAnesthesiaNecrosisSwine, MiniatureAngioplasty, Balloon, CoronaryLactic AcidRandom AllocationMitochondria, HeartTroponin TFollow-Up StudiesCatsCardiovascular AgentsLigationCarotid Artery, InternalAngina, UnstableMice, Inbred C57BLCerebral AngiographyLactatesRisk Factors