Circulatory Arrest, Deep Hypothermia InducedHypothermia, InducedHypothermiaRewarmingHeart Arrest, InducedCardiopulmonary BypassExtracorporeal CirculationPerioperative PeriodBody TemperatureAorta, ThoracicAortic Aneurysm, ThoracicAortic AneurysmAneurysm, DissectingBlood Coagulation DisordersBody Temperature RegulationTime FactorsTreatment OutcomeHypoxia-Ischemia, BrainHeart ArrestOrgan PreservationCold TemperatureRetrospective StudiesShiveringPerfusionTissue PreservationAsphyxia NeonatorumOrgan Preservation SolutionsCardioplegic SolutionsBrainCardiopulmonary ResuscitationMyxedemaBrain IschemiaHypoxia, BrainIntraoperative ComplicationsSkin TemperatureCerebrovascular CirculationBrain InjuriesDeep Brain StimulationRats, Sprague-DawleyReperfusionResuscitationHeatingRaffinoseComa