Circulatory Arrest, Deep Hypothermia InducedHypothermia, InducedHypothermiaRewarmingHeart Arrest, InducedCardiopulmonary BypassExtracorporeal CirculationPerioperative PeriodAorta, ThoracicAortic Aneurysm, ThoracicBlood Coagulation DisordersAortic AneurysmAneurysm, DissectingBody TemperatureTreatment OutcomeTime FactorsHypoxia-Ischemia, BrainHeart ArrestRetrospective StudiesBody Temperature RegulationAsphyxia NeonatorumShiveringCardiopulmonary ResuscitationDeep Brain StimulationComaCold Temperature