Subarachnoid HemorrhageVasospasm, IntracranialIntracranial AneurysmAneurysm, RupturedSubarachnoid SpaceGlasgow Outcome ScaleCerebral AngiographyHydrocephalusRupture, SpontaneousMagnesium SulfateVentriculostomyTomography, X-Ray ComputedBrain IschemiaCisterna MagnaSpinal PunctureNimodipineCerebral HemorrhagePregnatrienesGlasgow Coma ScaleCerebrovascular CirculationProspective StudiesSurgical InstrumentsUltrasonography, Doppler, TranscranialTreatment OutcomeHypovolemiaIntracranial HypertensionAngiography, Digital SubtractionCerebral ArteriesVentriculoperitoneal ShuntCortical Spreading DepressionIschemic Attack, TransientHemorrhageBasilar ArteryCerebral InfarctionIntracranial PressureDioxanesThird VentricleNeurosurgical ProceduresTime FactorsNicardipinePituitary Function TestsMicrodialysisRetrospective StudiesNervous System DiseasesPerfusion ImagingMeteorological ConceptsPredictive Value of TestsIntracranial HemorrhagesBrainCoagulation Protein DisordersPapaverineRisk FactorsSubarachnoid Hemorrhage, TraumaticTranexamic AcidHypopituitarismHemodilutionEndovascular ProceduresPrognosisBlood VolumeSeverity of Illness IndexFollow-Up StudiesRecurrenceIncidenceDrainageCohort StudiesOutcome Assessment (Health Care)Postoperative ComplicationsVasodilator AgentsRetinal HemorrhageLogistic ModelsBlood Flow VelocityNeuroprotective AgentsEmbolization, TherapeuticAcute DiseaseJapanRiskHyperglycemiaBiological MarkersVitreous HemorrhageHematoma, SubduralAge FactorsOdds RatioSensitivity and SpecificityRandomized Controlled Trials as TopicMiddle Cerebral ArteryVertebral ArteryPostpartum HemorrhageHydroxymethylglutaryl-CoA Reductase InhibitorsCraniotomyRegression AnalysisCase-Control StudiesArachnoid