CraniotomyNeurosurgical ProceduresPneumocephalusFrontal BoneHematoma, Subdural, AcuteTrephiningHead Injuries, PenetratingBrain NeoplasmsDelayed Emergence from AnesthesiaHematoma, SubduralIntracranial AneurysmDura MaterMeningeal NeoplasmsSurgical Fixation DevicesSupratentorial NeoplasmsFrontal SinusMeningiomaMicrosurgeryArachnoid CystsTomography, X-Ray ComputedSubdural SpaceGlasgow Coma ScalePostoperative ComplicationsHematoma, Epidural, CranialHematoma, Subdural, ChronicCerebrospinal Fluid RhinorrheaTemporal BoneCranial Fossa, AnteriorFourth VentricleStereotaxic TechniquesMagnetic Resonance ImagingNeurosurgeryBrain AbscessSurgical InstrumentsHematoceleSurgical FlapsCerebellar DiseasesVentriculostomyTreatment OutcomeSkull BaseBrain InjuriesRetrospective StudiesConsciousness MonitorsCranial Nerve NeoplasmsSkull FracturesSkull Base NeoplasmsCerebral AngiographyAneurysm, RupturedSubarachnoid HemorrhageDecompression, SurgicalConscious SedationCerebral VeinsIntracranial HemorrhagesCraniopharyngiomaBrain DiseasesOrbitAnterior Cerebral ArterySkullMonitoring, IntraoperativeCranial Fossa, MiddleNeuroendoscopyIntracranial Hemorrhage, HypertensiveAnesthesia