Cerebral VentriclesSubarachnoid HemorrhageSubarachnoid SpaceCerebrospinal FluidInjections, IntraventricularCerebral HemorrhageCisterna MagnaFourth VentricleHemorrhageVasospasm, IntracranialCerebrospinal Fluid ShuntsVentriculoperitoneal ShuntHydrocephalusCerebral ArteriesHeart VentriclesCerebrospinal Fluid ProteinsShiveringBrainIntracranial AneurysmIntracranial HemorrhagesCerebral AngiographyInjectionsCerebral InfarctionLateral VentriclesBody TemperatureCerebrovascular CirculationAneurysm, RupturedEpendymaThird VentriclePortasystemic Shunt, SurgicalHypothalamusSpinal PunctureTomography, X-Ray ComputedPempidineCerebrospinal Fluid PressureChoroid PlexusRetinal HemorrhageCerebral Ventricle NeoplasmsHypnosis, AnestheticBasilar ArteryCatsBody Temperature RegulationPhysostigmineCerebrospinal Fluid RhinorrheaTime FactorsMiddle Cerebral ArteryIntracranial PressureHexamethonium CompoundsBrain IschemiaPortacaval Shunt, SurgicalDogsTranylcypromineConsciousnessMeningitisCerebral PalsyMagnetic Resonance ImagingGastrointestinal HemorrhagePeritoneovenous ShuntBlood PressurePerfusionCerebral VentriculographySerotoninPostpartum HemorrhageVentriculostomyCerebral VeinsArachnoidRats, Sprague-DawleyHistamine AgentsPyrogensNorepinephrineVitreous HemorrhageIschemic Attack, TransientInjections, IntravenousRats, WistarRupture, SpontaneousTreatment OutcomePhentolamineEye HemorrhageDrinkingBrain DiseasesLysergic Acid DiethylamideInfarction, Middle Cerebral ArteryMalaria, CerebralHeart RateParasympathomimeticsRabbitsCerebrovascular DisordersBrain EdemaNeurosurgical ProceduresCraniotomyPentobarbitalEmbolization, TherapeuticReserpineRetrospective StudiesDisease Models, AnimalHematoma, SubduralHematomaFeverProspective StudiesIntracranial Hemorrhage, Hypertensive