Cerebral VentriculitisCerebral VentriclesEncephalitisHydrocephalusVentriculostomySpiruridaCerebrospinal Fluid ShuntsCerebral VentriculographyVentriculoperitoneal ShuntMeningitisMeningitis, FungalMeningitis, BacterialBrain AbscessCerebrospinal FluidTuberculosis, MeningealInjections, IntraventricularAnti-Bacterial Agents