Cerebral VentriclesInjections, IntraventricularInjectionsCerebral HemorrhageVentriculostomyCerebral Ventricle NeoplasmsHydrocephalusCerebral VentriculographyInfant, Premature, DiseasesInfusions, IntraventricularLateral VentriclesIntracranial HemorrhagesNeuroendoscopyInjections, IntravenousInfant, PrematureInfant, NewbornEchoencephalographyLeukomalacia, PeriventricularInjections, IntramuscularThird VentricleNeurocytomaInjections, SubcutaneousMeningeal NeoplasmsInjections, IntralesionalInjections, Intra-ArticularCerebrospinal Fluid ShuntsInfant, Very Low Birth WeightGestational AgeInjections, SpinalBundle-Branch BlockTime FactorsFourth VentricleGlioma, SubependymalTomography, X-Ray ComputedCerebrospinal FluidSubarachnoid HemorrhageInjections, IntraperitonealBrainElectrocardiographyIntracranial PressureCardiac Pacing, ArtificialSubarachnoid SpaceBody TemperatureHeart VentriclesTreatment OutcomeHyaline Membrane DiseaseCerebral VentriculitisVentricular DysfunctionDrainageCentral Nervous System Bacterial InfectionsVentricular PressureMagnetic Resonance ImagingIntensive Care Units, NeonatalInfant, Newborn, DiseasesInjections, IntradermalVentriculoperitoneal ShuntInjections, EpiduralInfant, Extremely Low Birth WeightHeart Conduction SystemHydroxydopaminesChoroid PlexusRats, Sprague-DawleyMeningiomaNeurocysticercosisHematomaRespiratory Distress Syndrome, NewbornInjections, Intra-ArterialExtravasation of Diagnostic and Therapeutic MaterialsPregnancyEchocardiography, Doppler, ColorApgar ScoreDisease Models, AnimalRetrospective StudiesIntracranial HypertensionEncephalomalaciaDevelopmental DisabilitiesBasal Ganglia HemorrhageRabbitsBronchopulmonary DysplasiaPentosan Sulfuric PolyesterIntravitreal InjectionsBrain AbscessProspective StudiesCardiac Resynchronization TherapyHypothalamusDose-Response Relationship, DrugVentricular Function, LeftVentricular Dysfunction, LeftReserpineNeurosurgical ProceduresDiastoleSpinal PunctureEpendymaGlasgow Coma ScaleInjections, JetNeurosurgeryEchocardiography, DopplerInjections, IntraocularDogsMeningitis