CraniotomyMyocytes, CardiacNeurosurgical ProceduresPneumocephalusCardiac OutputFrontal BoneHematoma, Subdural, AcuteHeartTrephiningArrhythmias, CardiacCardiac Surgical ProceduresDeath, Sudden, CardiacHead Injuries, PenetratingBrain NeoplasmsDelayed Emergence from AnesthesiaHematoma, SubduralIntracranial AneurysmDura MaterSurgical Fixation DevicesMeningeal NeoplasmsSupratentorial NeoplasmsFrontal SinusMeningiomaTomography, X-Ray ComputedArachnoid CystsSubdural SpaceMicrosurgeryPostoperative ComplicationsGlasgow Coma ScaleMagnetic Resonance ImagingHematoma, Epidural, CranialHematoma, Subdural, ChronicCerebrospinal Fluid RhinorrheaTemporal BoneCardiomegalyCardiac TamponadeCardiac Pacing, ArtificialCranial Fossa, AnteriorFourth VentricleHeart DiseasesStereotaxic TechniquesBrain AbscessMyocardiumNeurosurgeryCardiac CatheterizationSurgical InstrumentsHematoceleMyocardial ContractionTime FactorsTreatment OutcomeCerebellar DiseasesHeart ArrestSurgical FlapsVentriculostomyHeart VentriclesConsciousness MonitorsBrain InjuriesSkull BaseCranial Nerve NeoplasmsSkull FracturesSubarachnoid HemorrhageRetrospective StudiesCerebral AngiographyAneurysm, RupturedAnesthesiaConscious SedationSkull Base NeoplasmsCerebral VeinsMyoblasts, CardiacHeart FailureCardiomyopathiesIntracranial HemorrhagesDecompression, SurgicalCardiac MyosinsCardiac Imaging TechniquesElectrocardiographyBrain DiseasesCraniopharyngiomaCardiac GlycosidesAnterior Cerebral ArteryHeart RateOrbitProspective StudiesEchocardiographySkullCranial Fossa, MiddleNeuroendoscopyIntracranial Hemorrhage, HypertensiveAnesthesia, GeneralCardiac Output, LowFatal OutcomeMonitoring, IntraoperativeOut-of-Hospital Cardiac ArrestHemodynamics