Cerebral VentriclesInjections, IntraventricularInfusions, IntravenousCerebral HemorrhageVentriculostomyCerebral Ventricle NeoplasmsInfusions, ParenteralHydrocephalusInfusions, IntraventricularCerebral VentriculographyInfant, Premature, DiseasesInfusion PumpsLateral VentriclesIntracranial HemorrhagesNeuroendoscopyInfant, PrematureInfant, NewbornEchoencephalographyInfusions, Intra-ArterialLeukomalacia, PeriventricularThird VentricleNeurocytomaMeningeal NeoplasmsCerebrospinal Fluid ShuntsInfant, Very Low Birth WeightGestational AgeInjectionsBundle-Branch BlockTime FactorsFourth VentricleGlioma, SubependymalElectrocardiographyCerebrospinal FluidSubarachnoid HemorrhageInjections, IntravenousIntracranial PressureTreatment OutcomeTomography, X-Ray ComputedCardiac Pacing, ArtificialBlood PressureDogsHeart VentriclesSubarachnoid SpaceHyaline Membrane DiseaseVentricular DysfunctionInfusion Pumps, ImplantableVentricular PressureBrainCerebral VentriculitisCentral Nervous System Bacterial InfectionsBody TemperatureDrainageDose-Response Relationship, DrugInfant, Newborn, DiseasesIntensive Care Units, NeonatalHeart Conduction SystemVentriculoperitoneal ShuntHemodynamicsMagnetic Resonance ImagingInfant, Extremely Low Birth WeightHeart RateNeurocysticercosisRespiratory Distress Syndrome, NewbornIntracranial HypertensionNorepinephrineMeningiomaChoroid PlexusHematomaEchocardiography, Doppler, ColorProspective StudiesApgar ScoreInfusions, SubcutaneousPentosan Sulfuric PolyesterVentricular Function, LeftHydroxydopaminesEncephalomalaciaDevelopmental DisabilitiesBasal Ganglia HemorrhageRetrospective StudiesBronchopulmonary DysplasiaExtravasation of Diagnostic and Therapeutic MaterialsDiastoleVentricular Dysfunction, LeftBrain AbscessCardiac Resynchronization TherapyRats, Sprague-DawleyGlasgow Coma ScaleSpinal PunctureEchocardiography, DopplerNeurosurgical ProceduresSystolePregnancyMeningitisDrug Administration ScheduleNeurosurgeryEchocardiographyEpendymaReserpineHypothalamusHeart Failure