Subarachnoid HemorrhageVasospasm, IntracranialBasilar ArterySubarachnoid SpaceIntracranial AneurysmCerebral AngiographyCerebral ArteriesAneurysm, RupturedIschemic Attack, TransientCisterna MagnaCerebral HemorrhageCerebrovascular CirculationPapaverineHemorrhageNimodipineTomography, X-Ray ComputedRupture, SpontaneousCerebral InfarctionCoronary VasospasmBrain IschemiaMiddle Cerebral ArteryUltrasonography, Doppler, TranscranialBrainAngiography, Digital SubtractionIntracranial HemorrhagesVentriculostomyVasoconstrictionHydrocephalusSubarachnoid Hemorrhage, TraumaticDisease Models, AnimalGlasgow Outcome ScaleSpinal PunctureDogsTreatment OutcomeIntracranial PressureInjections, Intra-ArterialGlasgow Coma ScaleCerebrospinal FluidVasodilator Agents1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineInfusions, Intra-ArterialTime FactorsNicardipineSurgical InstrumentsEmbolization, TherapeuticInjections, IntraventricularPregnatrienesOxyhemoglobinsChlorobutanolProspective StudiesRetinal HemorrhageVertebral ArteryCraniotomyRabbitsRetrospective StudiesNeurosurgical ProceduresHematoma, SubduralCerebrovascular DisordersAngiographyBlood Flow VelocityCerebral VeinsVitreous HemorrhageCerebral PalsyMagnetic Resonance ImagingBrain EdemaPipecolic AcidsCerebral VentriclesMuscle, Smooth, VascularPosterior Cerebral ArteryRats, Sprague-DawleyArachnoidPostpartum HemorrhageHeadacheIntracranial Arteriovenous MalformationsAnterior Cerebral ArteryIntracranial Hemorrhage, HypertensiveIntracranial HypertensionSpasmHematomaVertebral Artery DissectionGastrointestinal HemorrhageHeadache Disorders, PrimaryInjectionsCerebral VentriculographyInfarction, Middle Cerebral ArteryStrokeBrain InjuriesSerotoninConsciousness DisordersVentriculoperitoneal ShuntBlood PressureEye HemorrhageCortical Spreading DepressionNeurosurgeryAcute DiseaseCalcium Channel Blockersrho-Associated KinasesPia MaterRisk FactorsFatal Outcome