Cerebral VentriclesSubarachnoid HemorrhageMeningitisSubarachnoid SpaceCerebrospinal FluidMeningitis, BacterialInjections, IntraventricularMeningitis, PneumococcalMeningitis, AsepticCerebral HemorrhageMeningitis, ViralCisterna MagnaFourth VentricleHemorrhageVasospasm, IntracranialCerebrospinal Fluid ProteinsMeningitis, FungalCerebral ArteriesHeart VentriclesMeningitis, HaemophilusShiveringMeningitis, MeningococcalHydrocephalusBrainMeningitis, CryptococcalIntracranial AneurysmTuberculosis, MeningealIntracranial HemorrhagesCerebral AngiographyInjectionsSpinal PunctureCerebral InfarctionLateral VentriclesBody TemperatureCerebrovascular CirculationAneurysm, RupturedEpendymaHypothalamusCerebrospinal Fluid RhinorrheaThird VentricleTomography, X-Ray ComputedPempidineChoroid PlexusIntracranial PressureRetinal HemorrhageCerebral Ventricle NeoplasmsTime FactorsHypnosis, AnestheticBasilar ArteryCatsCerebrospinal Fluid PressureBody Temperature RegulationPhysostigmineMiddle Cerebral ArteryCerebrospinal Fluid ShuntsHexamethonium CompoundsBrain IschemiaTranylcypromineMagnetic Resonance ImagingConsciousnessDogsCerebral PalsyMeningitis, ListeriaBlood PressurePerfusionSerotoninArachnoidPostpartum HemorrhageMeningesRats, Sprague-DawleyCerebral VentriculographyHistamine AgentsPyrogensNorepinephrineInjections, IntravenousCerebral VeinsRats, WistarVitreous HemorrhageGastrointestinal HemorrhageMeningitis, Escherichia coliVentriculostomyIschemic Attack, TransientRupture, SpontaneousRabbitsTreatment OutcomeBlood-Brain BarrierPhentolamineEye HemorrhageBrain DiseasesDrinkingLysergic Acid DiethylamideInfarction, Middle Cerebral ArteryMalaria, CerebralDisease Models, AnimalBrain EdemaFeverNeurosurgical ProceduresRetrospective StudiesProspective StudiesParasympathomimetics