Subarachnoid HemorrhageVasospasm, IntracranialSubarachnoid SpaceIntracranial AneurysmCerebral HemorrhageAneurysm, RupturedHemorrhageCerebral AngiographyBasilar ArteryIntracranial HemorrhagesTomography, X-Ray ComputedCerebral ArteriesRupture, SpontaneousSubarachnoid Hemorrhage, TraumaticSpinal PunctureHydrocephalusGlasgow Outcome ScaleCisterna MagnaIntracranial PressureIschemic Attack, TransientCerebrovascular CirculationBrain IschemiaSurgical InstrumentsRetinal HemorrhageVentriculostomyNimodipineAngiography, Digital SubtractionEmbolization, TherapeuticVitreous HemorrhageHematoma, SubduralGlasgow Coma ScaleCerebral InfarctionNeurosurgical ProceduresVertebral ArteryTreatment OutcomePostpartum HemorrhageCraniotomyPregnatrienesArachnoidProspective StudiesBrainIntracranial Hemorrhage, HypertensiveGastrointestinal HemorrhageVertebral Artery DissectionTime FactorsHeadacheCerebrovascular DisordersHematomaEye HemorrhageCerebral VentriculographyVentriculoperitoneal ShuntRetrospective StudiesHeadache Disorders, PrimaryCerebral VentriclesIntracranial Arteriovenous MalformationsNeurosurgeryMagnetic Resonance ImagingUltrasonography, Doppler, TranscranialIntracranial HypertensionBrain EdemaCerebrospinal FluidPutaminal HemorrhageConsciousness DisordersCortical Spreading DepressionDisease Models, AnimalMeningesMiddle Cerebral ArteryPosterior Cerebral ArteryFatal OutcomeStrokeRisk FactorsHemosiderinAcute DiseaseBrain InjuriesMagnesium SulfateFollow-Up StudiesCerebral AqueductVasoconstrictionComaPapaverineIncidenceRecurrenceAneurysmAngiographyAminocaproatesBasal Ganglia HemorrhageCerebral Hemorrhage, TraumaticDura MaterHematoma, Subdural, IntracranialNeurologic ExaminationTranexamic AcidAnterior Cerebral ArteryPrognosisPredictive Value of TestsCarotid Artery, InternalArachnoiditisSpinal Cord Vascular DiseasesAntifibrinolytic AgentsDogsHead Injuries, Closed