Spinal PuncturePost-Dural Puncture HeadacheBlood Patch, EpiduralDura MaterPuncturesHeadacheAnesthesia, EpiduralAnalgesia, EpiduralAnesthesia, ObstetricalNeedlesEpidural SpaceAnesthesia, SpinalAnalgesia, ObstetricalPuerperal DisordersInjectionsBack PainCentral Nervous System Vascular MalformationsPregnancyArteriovenous FistulaSinus Thrombosis, IntracranialCavernous SinusInjections, IntravenousCerebral VeinsInjections, IntramuscularMeningeal ArteriesEmbolization, TherapeuticSepsisCecumMyelographyInjections, IntralesionalInjections, SubcutaneousIntracranial HypotensionInjections, Intra-ArticularInjections, EpiduralCerebral AngiographyArachnoidInjections, IntraperitonealCatheterization, PeripheralAtrial SeptumWounds, PenetratingInjections, SpinalMagnetic Resonance ImagingLigationFoot InjuriesCranial Fossa, AnteriorLarynx, ArtificialCerebrospinal FluidTomography, X-Ray ComputedCraniotomyIntracranial Arteriovenous MalformationsMeningitisFluoroscopyPolyvinylsTreatment OutcomeSubarachnoid SpaceLaminectomySubdural EffusionTime FactorsInjections, IntradermalCerebrospinal Fluid PressureHemostatic TechniquesInjections, IntraventricularInjections, Intra-ArterialDisease Models, AnimalRats, Sprague-DawleyJugular VeinsMeningeal NeoplasmsNeurosurgical ProceduresMeningesIntravitreal InjectionsLumbar VertebraePneumocephalusIntracranial HypertensionRadiography, InterventionalGloves, SurgicalInjections, JetArteriovenous MalformationsInjections, IntraocularMeningoceleCatheterizationMagnetic Resonance AngiographySpinal CordRetrospective StudiesSubarachnoid HemorrhageMeningitis, BacterialUltrasonography, InterventionalSpinal Cord DiseasesHematoma, Subdural, IntracranialAngiographyMice, Inbred C57BLContrast MediaAnesthetics, LocalWound Closure TechniquesEncephaloceleVeinsMeningiomaProspective StudiesIatrogenic DiseaseExtravasation of Diagnostic and Therapeutic MaterialsLumbosacral Region