HeadacheCraniotomyVascular HeadachesSpinal PunctureHeadache DisordersTension-Type HeadacheCluster HeadacheMigraine DisordersHeadache Disorders, SecondaryNeurosurgical ProceduresPneumocephalusDura MaterMigraine without AuraHematoma, Subdural, AcuteFrontal BoneTrephiningHematoma, SubduralIntracranial AneurysmTomography, X-Ray ComputedBrain NeoplasmsMeningeal NeoplasmsMagnetic Resonance ImagingArachnoid CystsMeningiomaHead Injuries, PenetratingMigraine with AuraFrontal SinusHematoma, Subdural, ChronicDelayed Emergence from AnesthesiaTrigeminal NerveBlood Patch, EpiduralSurgical Fixation DevicesSupratentorial NeoplasmsMicrosurgerySubdural SpaceNeurologyCerebrospinal Fluid RhinorrheaHematoma, Epidural, CranialNeurosurgerySubarachnoid HemorrhageTrigeminal Autonomic CephalalgiasGlasgow Coma ScaleBrain AbscessFourth VentricleAnalgesicsCerebral AngiographyTryptaminesSumatriptanTreatment OutcomeCranial Fossa, AnteriorTemporal BoneCerebellar DiseasesCerebral VeinsStereotaxic TechniquesVentriculostomyPostoperative ComplicationsSurgical InstrumentsBrain DiseasesIntracranial HypotensionAneurysm, RupturedIntracranial HemorrhagesBrain Injuries