CraniotomyBrain NeoplasmsBrain InjuriesBrain ChemistryNeurosurgical ProceduresPneumocephalusFrontal BoneHematoma, Subdural, AcuteBrain MappingTrephiningMagnetic Resonance ImagingBrain AbscessHead Injuries, PenetratingBrainHematoma, SubduralDelayed Emergence from AnesthesiaIntracranial AneurysmDura MaterSupratentorial NeoplasmsBrain EdemaSurgical Fixation DevicesMeningeal NeoplasmsFrontal SinusArachnoid CystsMeningiomaTomography, X-Ray ComputedSubdural SpaceMicrosurgeryGlasgow Coma ScaleStereotaxic TechniquesHematoma, Epidural, CranialHematoma, Subdural, ChronicCerebrospinal Fluid RhinorrheaTemporal BoneFourth VentricleCranial Fossa, AnteriorNeurosurgeryBrain StemBrain IschemiaPostoperative ComplicationsSurgical InstrumentsHematoceleSurgical FlapsCerebellar DiseasesVentriculostomySkull BaseSubarachnoid HemorrhageConsciousness MonitorsCerebral AngiographyCerebral CortexCerebral VeinsCranial Nerve NeoplasmsSkull FracturesAneurysm, RupturedSkull Base NeoplasmsConscious SedationDecompression, SurgicalIntracranial HemorrhagesCraniopharyngiomaTime FactorsCerebral HemorrhageIntracranial PressureAnterior Cerebral ArteryOrbitBrain DiseasesMonitoring, IntraoperativeNeuroendoscopyAnesthesiaGlasgow Outcome ScaleIntracranial Hemorrhage, HypertensiveCranial Fossa, MiddleHead Injuries, ClosedSkullCerebrovascular CirculationCranial SinusesTreatment Outcome