HematomaHematoma, Epidural, CranialHematoma, SubduralHematoma, Subdural, ChronicDura MaterHematoma, Subdural, AcuteHematoma, Epidural, SpinalHematoma, Subdural, IntracranialCentral Nervous System Vascular MalformationsHematoma, Subdural, SpinalCerebral HemorrhageTomography, X-Ray ComputedCraniotomyTrephiningTreatment OutcomePostoperative ComplicationsCerebral VeinsArteriovenous FistulaNeurosurgical ProceduresSinus Thrombosis, IntracranialSubdural SpaceCavernous SinusMeningeal ArteriesCerebral AngiographyRetrospective StudiesLaminectomyMagnetic Resonance ImagingEmbolization, TherapeuticArachnoidSkull FracturesBariatric SurgerySubdural EffusionDecompression, SurgicalIntracranial Arteriovenous MalformationsHeadacheCranial Fossa, PosteriorIntracranial HypotensionMyelographyProspective StudiesGeneral SurgeryTime FactorsFollow-Up StudiesCranial Fossa, AnteriorSpinal PunctureThoracic SurgeryCerebral Hemorrhage, TraumaticCraniocerebral TraumaSpinal Cord CompressionEpidural SpaceCardiac Surgical ProceduresPostoperative PeriodIntracranial HemorrhagesDrainageBasal Ganglia HemorrhageLumbar VertebraeArachnoid CystsRemission, SpontaneousGlasgow Coma ScaleLigamentum FlavumIntraoperative ComplicationsMeningeal NeoplasmsReoperationPost-Dural Puncture HeadacheSpinal Cord DiseasesRectus AbdominisSurgery, PlasticPolyvinylsSuctionHead Injuries, ClosedPostoperative CareMeningoceleMeningiomaSurgical Procedures, Minimally InvasivePreoperative CareCervical VertebraeOrthopedic ProceduresSubarachnoid HemorrhageNeurologic ExaminationAnticoagulantsRetroperitoneal SpaceParaparesisExtravasation of Diagnostic and Therapeutic MaterialsFatal OutcomeThoracic Surgery, Video-AssistedCataract ExtractionOccipital BoneRisk FactorsMagnetic Resonance AngiographySkull BaseSurgery, Computer-AssistedSurgical Procedures, OperativePneumocephalusCoronary Artery BypassPolyradiculopathyLaparoscopySkull NeoplasmsVascular Surgical ProceduresIntraoperative CareSubarachnoid SpaceEsophageal Diseases