HematomaHematoma, Epidural, CranialHematoma, SubduralHematoma, Subdural, ChronicHematoma, Subdural, AcuteHematoma, Epidural, SpinalHematoma, Subdural, IntracranialHematoma, Subdural, SpinalCerebral HemorrhageTrephiningTomography, X-Ray ComputedCraniotomyFrail ElderlySubdural SpaceSkull FracturesCerebral Hemorrhage, TraumaticTreatment OutcomeAgingAge FactorsCraniocerebral TraumaBasal Ganglia HemorrhageDura MaterGlasgow Coma ScaleHousing for the ElderlyMagnetic Resonance ImagingNeurosurgical ProceduresRetrospective StudiesRectus AbdominisGeriatric AssessmentHealth Services for the AgedIntracranial HemorrhagesHead Injuries, ClosedSubdural EffusionLaminectomyCranial Fossa, PosteriorDrainagePostoperative ComplicationsRemission, SpontaneousProspective StudiesRisk FactorsAccidental FallsLigamentum FlavumIntracranial Hemorrhage, HypertensiveEsophageal DiseasesAnticoagulantsRetroperitoneal SpaceSuctionCerebral AngiographyDecompression, SurgicalBrain Hemorrhage, TraumaticArachnoid CystsTime FactorsAcute DiseaseFollow-Up StudiesWounds, NonpenetratingGlasgow Outcome ScaleGeriatricsFatal OutcomeOrbital DiseasesSpinal Cord CompressionBrain EdemaSubarachnoid HemorrhageRupture, SpontaneousTomography Scanners, X-Ray ComputedExtravasation of Diagnostic and Therapeutic MaterialsAortic DiseasesWarfarinAneurysm, RupturedHomes for the AgedArachnoidCerebellar DiseasesChronic DiseaseActivities of Daily LivingNeuroendoscopyParaparesisThalamic DiseasesStereotaxic TechniquesBrain InjuriesIntracranial AneurysmCohort StudiesNursing HomesPrognosisExophthalmosInstitutionalizationHemorrhageHeadacheAneurysm, DissectingNeurosurgeryPostoperative HemorrhageBrain