Vena Cava FiltersVena Cava, InferiorPulmonary EmbolismTreatment OutcomeAnticoagulantsVena Cava, SuperiorVenous ThrombosisDevice RemovalPatient SelectionSuperior Vena Cava SyndromeWarfarinPhlebographyInternational Normalized RatioThromboembolismVenae CavaeIliac VeinForeign-Body MigrationProsthesis ImplantationVenous ThromboembolismFemoral VeinMultiple TraumaRadiography, InterventionalPoint-of-Care SystemsThrombophlebitisEquipment FailureThrombosisHemorrhageMicropore FiltersFiltrationHeparinAtrial FibrillationHead Injuries, ClosedAzygos VeinUltrasonography, Doppler, DuplexWhole Blood Coagulation TimeFollow-Up StudiesTomography, X-Ray ComputedPhenprocoumonRetrospective StudiesProsthesis DesignTime FactorsRecurrenceSensation DisordersThrombolytic TherapyInformation Storage and RetrievalInjury Severity ScoreBlood CoagulationHeparin, Low-Molecular-WeightUltrasonography, InterventionalFluoroscopyEquipment DesignRisk AssessmentAcenocoumarolHeparin AntagonistsProthrombin TimeVitamin Kbeta-AlanineImmobilizationVascular PatencyRenal VeinsDrug MonitoringRisk Factors