CraniotomyPropofolAnesthetics, IntravenousSurvival RateCell SurvivalNeurosurgical ProceduresPneumocephalusConscious SedationHypnotics and SedativesDisease-Free SurvivalFrontal BoneHematoma, Subdural, AcuteBrain NeoplasmsTrephiningSurvivalConsciousness MonitorsAnesthesia, GeneralMonitoring, IntraoperativeSurvival AnalysisDelayed Emergence from AnesthesiaSupratentorial NeoplasmsHead Injuries, PenetratingGraft SurvivalAnesthetics, CombinedHematoma, SubduralMeningeal NeoplasmsTreatment OutcomeIntracranial AneurysmAnesthesia Recovery PeriodDura MaterFentanylSurgical Fixation DevicesAnesthesiaFrontal SinusMeningiomaThiopentalRetrospective StudiesArachnoid CystsMicrosurgeryAnesthetics, InhalationSubdural SpaceTomography, X-Ray ComputedMethyl EthersTime FactorsPostoperative ComplicationsGlasgow Coma ScaleAlfentanilHematoma, Epidural, CranialHematoma, Subdural, ChronicDeep SedationElectroencephalographyCerebrospinal Fluid RhinorrheaTemporal BoneMagnetic Resonance ImagingIsofluraneCranial Fossa, AnteriorFourth VentricleStereotaxic TechniquesMidazolamBrain AbscessPiperidinesNeurosurgeryHematoceleSurgical InstrumentsEtomidateSurgical FlapsProspective StudiesMethohexitalBrain InjuriesCerebellar DiseasesFollow-Up StudiesAnesthetics, GeneralVentriculostomyDose-Response Relationship, DrugSkull BaseKaplan-Meier EstimateCranial Nerve NeoplasmsSkull FracturesSkull Base NeoplasmsSubarachnoid HemorrhageAneurysm, RupturedCerebral AngiographyAnestheticsDecompression, SurgicalCerebral VeinsIntracranial HemorrhagesBrain DiseasesInfusions, IntravenousCraniopharyngiomaCombined Modality TherapyBrainNeoplasm Recurrence, LocalNitrous OxideNeoplasm StagingAnterior Cerebral ArterySkullProportional Hazards ModelsOrbitConsciousnessCranial Fossa, Middle