VeinsHematoma, SubduralSubdural SpaceHematoma, Subdural, ChronicHematomaHematoma, Subdural, AcuteEmpyema, SubduralSubdural EffusionHematoma, Epidural, CranialHematoma, Subdural, SpinalHematoma, Epidural, SpinalHematoma, Subdural, IntracranialCraniotomySaphenous VeinDura MaterTomography, X-Ray ComputedPortal VeinVaricose VeinsCraniocerebral TraumaCerebral HemorrhageFemoral VeinArachnoid CystsHead Injuries, ClosedPulmonary VeinsJugular VeinsTrephiningNeurosurgical ProceduresArachnoidBattered Child SyndromeIntracranial HypotensionMagnetic Resonance ImagingSkull FracturesDrainageShaken Baby SyndromeGlasgow Coma ScaleCerebral VeinsCranial Fossa, PosteriorIliac VeinMesenteric VeinsRenal VeinsCerebral Hemorrhage, TraumaticUmbilical VeinsIntracranial HemorrhagesRemission, SpontaneousHepatic VeinsPopliteal VeinHeadacheTreatment OutcomePneumocephalusPostoperative ComplicationsFatal OutcomeBrain AbscessSubarachnoid SpaceElectrodes, ImplantedDecompression, SurgicalCerebral AngiographyGlasgow Outcome ScaleSubclavian VeinSplenic VeinExtravasation of Diagnostic and Therapeutic MaterialsLaminectomyRetinal HemorrhagePost-Dural Puncture HeadacheTomography Scanners, X-Ray ComputedSubarachnoid HemorrhageRetrospective StudiesBrain InjuriesLigamentum FlavumSuctionBlood Patch, EpiduralMeningesBasal Ganglia HemorrhageCerebral AqueductRupture, SpontaneousHydrocephalusAnticoagulantsSkull Fracture, DepressedRetinal VeinSkull NeoplasmsBirth InjuriesAzygos VeinBrachiocephalic VeinsNeurosurgeryChronic DiseaseRectus AbdominisCranial Fossa, MiddleVentriculostomy