Subarachnoid HemorrhageVasospasm, IntracranialSubarachnoid SpaceIntracranial AneurysmCerebral HemorrhageAneurysm, RupturedHemorrhageCerebral AngiographyBasilar ArteryIntracranial HemorrhagesTomography, X-Ray ComputedCerebral ArteriesRupture, SpontaneousSubarachnoid Hemorrhage, TraumaticSpinal PunctureHydrocephalusGlasgow Outcome ScaleCisterna MagnaIntracranial PressureIschemic Attack, TransientBrain IschemiaCerebrovascular CirculationSurgical InstrumentsRetinal HemorrhageVentriculostomyNimodipineAngiography, Digital SubtractionEmbolization, TherapeuticVitreous HemorrhageHematoma, SubduralGlasgow Coma ScaleNeurosurgical ProceduresTreatment OutcomeCerebral InfarctionVertebral ArteryTime FactorsPostpartum HemorrhageProspective StudiesCraniotomyPregnatrienesBrainArachnoidIntracranial Hemorrhage, HypertensiveGastrointestinal HemorrhageVertebral Artery DissectionHeadacheCerebrovascular DisordersHematomaRetrospective StudiesEye HemorrhageCerebral VentriculographyVentriculoperitoneal ShuntMagnetic Resonance ImagingHeadache Disorders, PrimaryCerebral VentriclesIntracranial Arteriovenous MalformationsNeurosurgeryUltrasonography, Doppler, TranscranialBrain EdemaIntracranial HypertensionCerebrospinal FluidDisease Models, AnimalConsciousness DisordersPutaminal HemorrhageCortical Spreading DepressionRisk FactorsMiddle Cerebral ArteryAcute DiseaseStrokeMeningesFatal OutcomePosterior Cerebral ArteryFollow-Up StudiesHemosiderinBrain InjuriesMagnesium SulfateIncidenceCerebral AqueductVasoconstrictionComaRecurrencePapaverineAneurysmAngiographyAminocaproatesBasal Ganglia HemorrhageCerebral Hemorrhage, TraumaticNeurologic ExaminationDura MaterPrognosisPredictive Value of TestsHematoma, Subdural, IntracranialTranexamic AcidAnterior Cerebral ArteryDogsCarotid Artery, InternalAntifibrinolytic AgentsArachnoiditisSpinal Cord Vascular DiseasesHead Injuries, Closed