Hypothermia, InducedCirculatory Arrest, Deep Hypothermia InducedHypothermiaHeart Arrest, InducedRewarmingBody TemperatureCardiopulmonary BypassOrgan PreservationBody Temperature RegulationTissue PreservationCold TemperatureOrgan Preservation SolutionsPerfusionCardioplegic SolutionsShiveringOxygenatorsMyxedemaRaffinoseTime FactorsAortic Aneurysm, ThoracicAortic AneurysmAneurysm, DissectingBrainCerebrovascular CirculationHeart ArrestReperfusionBlood Gas AnalysisExtracorporeal CirculationIntraoperative ComplicationsMonitoring, IntraoperativeOxygenCardiac Surgical ProceduresCatalepsy8-Hydroxy-2-(di-n-propylamino)tetralinSwineDrug ToleranceSkin TemperatureFentanylAorta, ThoracicCardiovascular Surgical ProceduresReperfusion InjuryIsofluraneHibernationOxygen ConsumptionCryopreservationHypoxia-Ischemia, BrainJugular VeinsTromethamineAllopurinolConstrictionDogsHypoxia, BrainPartial PressureHemodynamicsDronabinolCreatine Kinase, BB FormCerebral VentriclesBrain IschemiaBlood Vessel Prosthesis ImplantationRats, Sprague-DawleySternotomyRefrigerationEndarterectomyTreatment OutcomeCold IschemiaAcid-Base ImbalanceAnesthesiaExcitatory Amino AcidsRats, WistarSerotonin Receptor AgonistsCreatine KinasePostoperative ComplicationsMeperidinePentobarbitalTemperatureWarm IschemiaFenclonineHeart Defects, CongenitalAcid-Base EquilibriumDose-Response Relationship, DrugHyperthermia, InducedVena Cava, InferiorCraniotomyCarbon DioxideMannitolResuscitationElectroencephalographyFeverAnesthetics, InhalationCannabisVascular Surgical ProceduresHypnotics and SedativesMedetomidineIschemiaReceptors, SerotoninAortographyHematocritInjectionsMyocardial Reperfusion InjuryDepression, Chemical