Cerebral VentriculitisSubarachnoid HemorrhageVasospasm, IntracranialIntracranial AneurysmAneurysm, RupturedHydrocephalusCerebral AngiographySubarachnoid SpaceGlasgow Outcome ScaleVentriculostomyCerebral VentriclesCerebral ArteriesCerebrovascular CirculationBrain IschemiaVentriculoperitoneal ShuntRupture, SpontaneousTomography, X-Ray ComputedMagnesium SulfateCisterna MagnaCerebral InfarctionEncephalitisCerebral HemorrhageNimodipineSpinal PunctureIschemic Attack, TransientPregnatrienesBasilar ArteryUltrasonography, Doppler, TranscranialGlasgow Coma ScaleTreatment OutcomeAngiography, Digital SubtractionProspective StudiesSurgical InstrumentsIntracranial HypertensionHypovolemiaCerebral VentriculographyIntracranial PressureBrainCerebrospinal Fluid ShuntsCortical Spreading DepressionHemorrhageSpiruridaDioxanesTime FactorsMiddle Cerebral ArteryNicardipineNeurosurgical ProceduresMeningitisThird VentricleCerebrospinal FluidCoronary VasospasmPapaverinePerfusion ImagingRetrospective StudiesMicrodialysisMeningitis, FungalNervous System DiseasesPituitary Function TestsPredictive Value of TestsIntracranial HemorrhagesBrain AbscessMeteorological ConceptsCerebral PalsyInjections, IntraventricularBlood VolumeRisk FactorsMeningitis, BacterialHemodilutionCoagulation Protein DisordersSubarachnoid Hemorrhage, TraumaticTranexamic AcidBlood Flow VelocityPrognosisHypopituitarismEndovascular ProceduresSeverity of Illness IndexFollow-Up StudiesTuberculosis, MeningealCerebral VeinsVasodilator AgentsRecurrenceNeuroprotective AgentsIncidence