CraniotomyCardiac Surgical ProceduresPostoperative ComplicationsBariatric SurgeryPerioperative CareNeurosurgical ProceduresPostoperative PeriodTreatment OutcomeThoracic SurgeryPreoperative CareVascular Surgical ProceduresPostoperative CarePneumocephalusProspective StudiesMonitoring, IntraoperativeObesity, MorbidPreoperative PeriodCoronary Artery BypassRetrospective StudiesFrontal BoneSurgical Procedures, ElectiveHematoma, Subdural, AcuteCardiopulmonary BypassTime FactorsTrephiningSurgical Procedures, OperativeAmbulatory Surgical ProceduresGeneral SurgeryIntraoperative ComplicationsSurgical Wound InfectionBrain NeoplasmsHead Injuries, PenetratingThoracic Surgical ProceduresIntracranial AneurysmDura MaterOrthognathic Surgical ProceduresHematoma, SubduralMicrosurgeryDelayed Emergence from AnesthesiaMeningeal NeoplasmsHeart ValvesTomography, X-Ray ComputedSupratentorial NeoplasmsSurgical Fixation DevicesFollow-Up StudiesRisk FactorsMeningiomaLength of StayFrontal SinusAnesthesiaArachnoid CystsRisk AssessmentOral Surgical ProceduresSubdural SpaceCardiovascular Surgical ProceduresSternumIntraoperative PeriodGlasgow Coma ScaleHematoma, Epidural, CranialCerebrospinal Fluid RhinorrheaSurgical InstrumentsBlood TransfusionNeurosurgeryMagnetic Resonance ImagingHematoma, Subdural, ChronicPain, PostoperativeTemporal BoneAnesthetics, IntravenousStereotaxic TechniquesSurgical FlapsChi-Square DistributionCranial Fossa, AnteriorPerioperative PeriodFourth VentricleHospital MortalityDecompression, SurgicalFluid TherapyBrain AbscessPremedicationGastric BypassGynecologic Surgical ProceduresPeripheral Vascular DiseasesOximetryMonitoring, PhysiologicPredictive Value of TestsSkull BaseHematoceleMiosisVentriculostomyDroperidolHeart DiseasesSurgery, Computer-AssistedCerebellar DiseasesAnesthesia, GeneralAnesthesia Recovery PeriodCentral Venous PressureIntensive CareConsciousness MonitorsAneurysm, RupturedThermodilution