CraniotomyHematomaHematoma, SubduralHematoma, Subdural, ChronicSubdural SpaceHematoma, Subdural, AcuteHematoma, Epidural, CranialEmpyema, SubduralHematoma, Subdural, SpinalSubdural EffusionHematoma, Epidural, SpinalHematoma, Subdural, IntracranialTomography, X-Ray ComputedTrephiningDura MaterCerebral HemorrhageNeurosurgical ProceduresArachnoid CystsCraniocerebral TraumaPneumocephalusGlasgow Coma ScaleSkull FracturesHead Injuries, ClosedMagnetic Resonance ImagingArachnoidIntracranial HemorrhagesCranial Fossa, PosteriorFrontal BoneDrainageIntracranial AneurysmCerebral Hemorrhage, TraumaticPostoperative ComplicationsCerebral AngiographyDecompression, SurgicalBrain AbscessMeningeal NeoplasmsSubarachnoid HemorrhageBattered Child SyndromeMeningiomaNeurosurgeryBrain InjuriesGlasgow Outcome ScaleIntracranial HypotensionFatal OutcomeHeadacheBrain NeoplasmsShaken Baby SyndromeTreatment OutcomeVentriculostomyRemission, SpontaneousAneurysm, RupturedTomography Scanners, X-Ray ComputedDelayed Emergence from AnesthesiaIntracranial Hemorrhage, HypertensiveBasal Ganglia HemorrhageRetrospective StudiesStereotaxic TechniquesCerebral VeinsCerebellar DiseasesMicrosurgeryFrontal SinusLaminectomyHydrocephalusHead Injuries, PenetratingRectus AbdominisLigamentum FlavumCranial Fossa, MiddleBrain EdemaSkullIntracranial PressureBrain DiseasesSkull NeoplasmsOccipital BoneNeuroendoscopySurgical Fixation DevicesSuctionTemporal BoneSupratentorial NeoplasmsExtravasation of Diagnostic and Therapeutic MaterialsElectrodes, ImplantedCranial Fossa, AnteriorSkull BaseBrainSubarachnoid SpaceRupture, SpontaneousExophthalmosAnticoagulantsSurgical InstrumentsPost-Dural Puncture HeadacheRetroperitoneal SpaceAcute DiseaseHemangioma, CavernousSpinal Cord CompressionEsophageal DiseasesSkull Fracture, DepressedSurgical FlapsCerebrospinal Fluid RhinorrheaCerebral AqueductBlood Patch, EpiduralRetinal Hemorrhage