Cerebral VentriculitisCoagulation Protein DisordersHydrocephalusIntracranial AneurysmCerebral VentriclesCerebrospinal Fluid ShuntsAneurysmVentriculostomyVentriculoperitoneal ShuntHydrocephalus, Normal PressureCerebral AngiographyAneurysm, RupturedEncephalitisCerebral ArteriesEmbolization, TherapeuticSubarachnoid HemorrhageCerebral VentriculographySpiruridaAneurysm, InfectedMeningitisSurgical InstrumentsCerebral AqueductCerebral InfarctionAortic AneurysmTreatment OutcomeMeningitis, FungalCerebrovascular CirculationCerebrospinal FluidTomography, X-Ray ComputedAngiography, Digital SubtractionTuberculosis, MeningealMiddle Cerebral ArteryMeningitis, BacterialCerebral PalsyBrain AbscessAneurysm, DissectingAortic Aneurysm, ThoracicEndovascular ProceduresHeart AneurysmCerebral HemorrhageNeurosurgical ProceduresBrainThird VentricleCerebral VeinsPlatinumInjections, IntraventricularAnterior Cerebral ArteryCraniotomyRetrospective Studies