Decompression, SurgicalDecompressionDecompression SicknessPulmonary EmbolismEmbolism, FatEmbolismEmbolism, ParadoxicalDivingIntracranial EmbolismSpinal Cord CompressionIntracranial Embolism and ThrombosisEmbolism, Amniotic FluidLaminectomyMicrovascular Decompression SurgeryTrigeminal NeuralgiaSpinal StenosisNerve Compression SyndromesArnold-Chiari MalformationSpinal FusionCervical VertebraeDiskectomy, PercutaneousLumbar VertebraeSyringomyeliaEmbolism, CholesterolEmbolism, AirTreatment OutcomeVenous ThrombosisNoble GasesHyperbaric OxygenationEmbolectomyIntervertebral Disc DisplacementSpondylosisForamen MagnumPostoperative ComplicationsTomography, X-Ray ComputedThoracic VertebraeDiskectomyVentilation-Perfusion RatioExophthalmosAnticoagulantsGraves OphthalmopathyRetrospective StudiesNeurosurgical ProceduresPolyradiculopathyOssification of Posterior Longitudinal LigamentIntubation, GastrointestinalSpinal Cord DiseasesOrbitHemifacial SpasmRadiculopathyMicrosurgerySpinal OsteophytosisFemur Head NecrosisAtmospheric PressureSpinal DiseasesFollow-Up StudiesVena Cava FiltersSacrumLigamentum FlavumSpinal CanalPlatybasiaMagnetic Resonance ImagingTuberculosis, SpinalThrombophlebitisSpondylolisthesisCompartment SyndromesHematoma, Epidural, SpinalCranial Fossa, PosteriorParaparesisThromboembolismAcute DiseaseProspective StudiesForamen Ovale, PatentCraniotomyHeliumHeart Septal Defects, AtrialInternal FixatorsThoracic Outlet SyndromeEndoscopyParamethasoneGlossopharyngeal Nerve DiseasesSurgical Procedures, Minimally InvasiveAir PressureSubmarine MedicineCarpal Tunnel SyndromeSpinal NeoplasmsCubital Tunnel SyndromeParaplegiaDura MaterMyelographyEchocardiography, TransesophagealDecompressive CraniectomyDecompression, ExplosiveBarotraumaShoulder Impingement SyndromeEpidural AbscessSubclavian VeinIntra-Abdominal HypertensionTime FactorsPressure