CraniotomyPostoperative PeriodNefopamPostoperative CarePivampicillinShiveringPostoperative ComplicationsPain, PostoperativeAbdomenVentriculoperitoneal ShuntProspective StudiesCerebrospinal Fluid ShuntsTime FactorsTreatment OutcomePortasystemic Shunt, SurgicalPortacaval Shunt, SurgicalPeritoneovenous ShuntPneumocephalusNeurosurgical ProceduresFrontal BoneHydrocephalusHematoma, Subdural, AcuteTrephiningHead Injuries, PenetratingHematoma, SubduralBrain NeoplasmsDura MaterDelayed Emergence from AnesthesiaIntracranial AneurysmMeningeal NeoplasmsSurgical Fixation DevicesSupratentorial NeoplasmsArachnoid CystsFrontal SinusTomography, X-Ray ComputedMeningiomaMicrosurgerySubdural SpaceGlasgow Coma ScaleHematoma, Subdural, ChronicHematoma, Epidural, CranialCerebrospinal Fluid RhinorrheaVentriculostomyTemporal BoneCranial Fossa, AnteriorFourth VentricleMagnetic Resonance ImagingArteriovenous Shunt, SurgicalBrain AbscessHematoceleStereotaxic TechniquesSurgical InstrumentsNeurosurgeryCerebellar DiseasesNeuroendoscopySurgical FlapsCerebral VeinsCerebral AngiographySkull BaseConsciousness MonitorsSubarachnoid HemorrhageBrain InjuriesCranial Nerve NeoplasmsSkull FracturesAneurysm, RupturedMonitoring, IntraoperativeBrain DiseasesDecompression, SurgicalHypertension, PortalIntracranial HemorrhagesSkull Base NeoplasmsConscious SedationCranial SinusesIntracranial PressureEsophageal and Gastric VaricesCraniopharyngiomaRetrospective StudiesAnterior Cerebral ArteryOrbitCerebral HemorrhageCentral Nervous System Vascular MalformationsCranial Fossa, MiddleIntracranial Hemorrhage, HypertensiveSkullAnesthesiaHepatic EncephalopathyHeart Septal Defects, Atrial