PropofolCraniotomyAnesthetics, IntravenousPiperidinesAnesthetics, CombinedAnalgesics, OpioidHypnotics and SedativesAnesthesia Recovery PeriodConscious SedationAlfentanilMonitoring, IntraoperativeAnesthesia, GeneralFentanylAnesthetics, InhalationMethyl EthersAnesthesia, IntravenousElectroencephalographyAnesthesiaConsciousness MonitorsMidazolamIntubation, IntratrachealThiopentalAdjuvants, AnesthesiaInfusions, IntravenousNeurosurgical ProceduresLaryngoscopyIsofluraneDeep SedationEtomidateAnesthetics, GeneralDose-Response Relationship, DrugPneumocephalusNitrous OxideDouble-Blind MethodInfusion PumpsConsciousnessSufentanilSupratentorial NeoplasmsFrontal BoneAnalgesiaHematoma, Subdural, AcutePain, PostoperativeHeart RateAnestheticsEntropyMethohexitalTrephiningDexmedetomidineKetamineHemodynamicsDermatologic Surgical ProceduresDrug InteractionsAndrostanolsDelayed Emergence from AnesthesiaPostoperative Nausea and VomitingAmbulatory Surgical ProceduresBlood PressureAnesthetics, DissociativePreanesthetic MedicationProspective StudiesHead Injuries, PenetratingBrain NeoplasmsHematoma, SubduralIntracranial AneurysmNeuromuscular Nondepolarizing AgentsDura MaterSurgical Fixation DevicesMeningeal NeoplasmsIntraoperative CareSuccinylcholineAnesthesia, InhalationPain MeasurementAnalgesia, Patient-ControlledFrontal SinusMeningiomaGynecologic Surgical ProceduresArachnoid CystsEvoked Potentials, AuditoryIntraoperative PeriodPostoperative ComplicationsSubdural SpaceMicrosurgerySurgical Procedures, MinorDrug Administration SchedulePainGlasgow Coma ScaleHematoma, Epidural, CranialTomography, X-Ray ComputedLaryngeal MasksHematoma, Subdural, ChronicMorphineAnesthesia, ObstetricalCerebrospinal Fluid RhinorrheaUnconsciousnessTemporal BoneMagnetic Resonance ImagingCranial Fossa, AnteriorPirinitramideFourth VentricleRespiration