Cerebral VentriclesSubarachnoid HemorrhageSubarachnoid SpaceCerebrospinal FluidStrokeInjections, IntraventricularCerebral HemorrhageCisterna MagnaHemorrhageFourth VentricleVasospasm, IntracranialCerebral ArteriesHeart VentriclesCerebrospinal Fluid ProteinsShiveringBrainCerebral InfarctionIntracranial HemorrhagesHydrocephalusIntracranial AneurysmCerebral AngiographyBrain IschemiaInjectionsCerebrovascular CirculationLateral VentriclesBody TemperatureAneurysm, RupturedEpendymaTime FactorsTomography, X-Ray ComputedCerebrovascular DisordersHypothalamusThird VentriclePempidineBasilar ArterySpinal PunctureMiddle Cerebral ArteryChoroid PlexusRetinal HemorrhageIschemic Attack, TransientBody Temperature RegulationCatsCerebral Ventricle NeoplasmsHypnosis, AnestheticPhysostigmineMagnetic Resonance ImagingCerebrospinal Fluid RhinorrheaCerebrospinal Fluid PressureCerebrospinal Fluid ShuntsHexamethonium CompoundsBlood PressureIntracranial PressureConsciousnessTranylcypromineDogsCerebral PalsyMeningitisPerfusionInfarction, Middle Cerebral ArterySerotoninTreatment OutcomePostpartum HemorrhageRats, Sprague-DawleyArachnoidHistamine AgentsPyrogensInjections, IntravenousNorepinephrineCerebral VentriculographyCerebral VeinsProspective StudiesGastrointestinal HemorrhageRats, WistarVitreous HemorrhageVentriculostomyRupture, SpontaneousRisk FactorsPhentolamineEye HemorrhageDrinkingBrain EdemaLysergic Acid DiethylamideAcute DiseaseHeart RateBrain DiseasesRetrospective StudiesDisease Models, AnimalMalaria, CerebralFollow-Up StudiesParasympathomimeticsBlood-Brain BarrierHematomaRabbitsFeverVentriculoperitoneal ShuntIntracranial Hemorrhage, HypertensiveGlasgow Outcome ScaleCraniotomyPentobarbitalReserpine