CraniotomySeverity of Illness IndexNeurosurgical ProceduresPneumocephalusFrontal BoneHematoma, Subdural, AcuteTrephiningHead Injuries, PenetratingBrain NeoplasmsHematoma, SubduralDelayed Emergence from AnesthesiaIntracranial AneurysmDura MaterSurgical Fixation DevicesMeningeal NeoplasmsSupratentorial NeoplasmsFrontal SinusMeningiomaArachnoid CystsSubdural SpaceTomography, X-Ray ComputedMicrosurgeryGlasgow Coma ScaleHematoma, Epidural, CranialHematoma, Subdural, ChronicMagnetic Resonance ImagingCerebrospinal Fluid RhinorrheaTemporal BoneCranial Fossa, AnteriorFourth VentricleStereotaxic TechniquesPostoperative ComplicationsNeurosurgeryBrain AbscessHematoceleSurgical InstrumentsBrain InjuriesCerebellar DiseasesSurgical FlapsVentriculostomySkull FracturesSkull BaseConsciousness MonitorsCranial Nerve NeoplasmsSubarachnoid HemorrhageCerebral AngiographyTreatment OutcomeAneurysm, RupturedDecompression, SurgicalSkull Base NeoplasmsIntracranial HemorrhagesCerebral VeinsConscious SedationRetrospective StudiesBrain DiseasesCraniopharyngiomaOrbitAnterior Cerebral ArterySkullCranial Fossa, MiddleNeuroendoscopyIntracranial Hemorrhage, HypertensiveMonitoring, IntraoperativeAnesthesiaHead Injuries, ClosedCerebral HemorrhageGlasgow Outcome Scale