Cerebral HemorrhageCerebral VentriclesIntracranial HemorrhagesSubarachnoid HemorrhageHemorrhageInfant, Premature, DiseasesVentriculostomyHydrocephalusInfant, PrematureCerebral VentriculographyInfant, NewbornLeukomalacia, PeriventricularEchoencephalographyInjections, IntraventricularNeuroendoscopyInfant, Very Low Birth WeightLateral VentriclesRetinal HemorrhageGestational AgeCerebral Ventricle NeoplasmsHyaline Membrane DiseasePostpartum HemorrhageHematomaIntensive Care Units, NeonatalTomography, X-Ray ComputedInfant, Newborn, DiseasesGastrointestinal HemorrhageInfant, Extremely Low Birth WeightRespiratory Distress Syndrome, NewbornApgar ScoreDevelopmental DisabilitiesBronchopulmonary DysplasiaVitreous HemorrhageCerebrospinal Fluid ShuntsEye HemorrhageEncephalomalaciaBasal Ganglia HemorrhageRetinopathy of PrematurityDuctus Arteriosus, PatentCerebral AngiographyRetrospective StudiesGlioma, SubependymalAneurysm, RupturedInfant, Low Birth WeightDrainageIntracranial AneurysmGlasgow Coma ScalePregnancyTreatment OutcomeSpinal PunctureVasospasm, IntracranialEnterocolitis, NecrotizingIntracranial Arteriovenous MalformationsProspective StudiesCerebral PalsyAsphyxia NeonatorumMagnetic Resonance ImagingNeurosurgical ProceduresVentriculoperitoneal ShuntThrombolytic TherapyIntracranial Hemorrhage, HypertensiveInfusions, IntraventricularTocolytic AgentsNeurologic ExaminationHeadInfant, Extremely PrematureBrainPremature BirthTissue Plasminogen ActivatorPostoperative HemorrhageTime FactorsIntensive Care, NeonatalSeverity of Illness IndexReceptors, Prostaglandin E, EP1 SubtypeRisk FactorsUltrasonographyFibrinolytic AgentsCerebral ArteriesDilatation, PathologicBirth InjuriesInfant MortalityBirth WeightPrognosisFollow-Up StudiesMoyamoya DiseaseHypotensionUmbilical ArteriesGliosisFractalsChoroid HemorrhagePeptic Ulcer HemorrhagePneumothoraxIndomethacinBrain DiseasesUltrasonography, PrenatalDelivery, ObstetricPutaminal HemorrhageCerebral Hemorrhage, TraumaticPredictive Value of TestsLung Diseases