CraniotomyPropofolAnesthetics, IntravenousEnzyme InductionNeurosurgical ProceduresPneumocephalusConscious SedationHypnotics and SedativesFrontal BoneHematoma, Subdural, AcuteTrephiningAnesthesia, GeneralConsciousness MonitorsMonitoring, IntraoperativeDelayed Emergence from AnesthesiaHead Injuries, PenetratingBrain NeoplasmsAnesthetics, CombinedAnesthesia Recovery PeriodFentanylHematoma, SubduralAnesthesiaSupratentorial NeoplasmsIntracranial AneurysmDura MaterThiopentalMeningeal NeoplasmsSurgical Fixation DevicesFrontal SinusAnesthetics, InhalationMethyl EthersMeningiomaArachnoid CystsSubdural SpaceMicrosurgeryAlfentanilTomography, X-Ray ComputedGlasgow Coma ScaleHematoma, Epidural, CranialElectroencephalographyHematoma, Subdural, ChronicDeep SedationIsofluraneCerebrospinal Fluid RhinorrheaMidazolamTemporal BoneCranial Fossa, AnteriorFourth VentriclePostoperative ComplicationsStereotaxic TechniquesMagnetic Resonance ImagingDose-Response Relationship, DrugPiperidinesEtomidateBrain AbscessMethohexitalNeurosurgeryHematoceleSurgical InstrumentsTime FactorsAnesthetics, GeneralBrain InjuriesCerebellar DiseasesVentriculostomySurgical FlapsSkull BaseAnestheticsCranial Nerve NeoplasmsSkull FracturesCells, CulturedSubarachnoid HemorrhageCerebral AngiographyAneurysm, RupturedRNA, MessengerSkull Base NeoplasmsNitrous OxideDecompression, SurgicalCerebral VeinsIntracranial HemorrhagesBrain DiseasesBrainCraniopharyngiomaOrbitEmbryonic InductionConsciousnessSkullAnterior Cerebral ArteryCranial Fossa, MiddleNeuroendoscopyIntracranial Hemorrhage, HypertensiveInfusions, IntravenousApoptosisSignal TransductionKetamineGene Expression RegulationTreatment Outcome