Vena Cava, InferiorVena Cava, SuperiorSuperior Vena Cava SyndromeVena Cava FiltersVenae CavaeNeckHead and Neck NeoplasmsAzygos VeinPhlebographyNeck PainRenal VeinsVenous ThrombosisPulmonary EmbolismBudd-Chiari SyndromeVascular NeoplasmsHepatic VeinsBrachiocephalic VeinsIliac VeinVascular MalformationsTomography, X-Ray ComputedHeart AtriaDevice RemovalCatheterization, Central VenousNeck InjuriesTreatment OutcomeJugular VeinsSuperior ColliculiLeiomyosarcomaPortal VeinCoronary SinusFemoral Neck FracturesFemoral VeinPulmonary VeinsVeinsConstriction, PathologicMesenteric Artery, SuperiorVenous PressureAnastomosis, SurgicalScimitar SyndromeHeterotaxy SyndromeProsthesis ImplantationHeart Bypass, RightSubclavian VeinThrombosisSitus InversusHeart NeoplasmsVascular DiseasesDogsCatheter AblationRetrospective StudiesIncidental FindingsTime FactorsBlood Vessel Prosthesis ImplantationFollow-Up StudiesForeign-Body MigrationCatheterizationHeart Defects, CongenitalVascular Surgical ProceduresPolytetrafluoroethyleneCarcinoma, Squamous CellConstrictionAtrial FlutterEquipment FailureAnticoagulantsThrombophlebitisMesenteric VeinsRetroperitoneal NeoplasmsStentsMagnetic Resonance ImagingHeart Septal Defects, AtrialThrombectomyMediastinal DiseasesCardiovascular AbnormalitiesMediastinal NeoplasmsPortacaval Shunt, SurgicalBlood Vessel ProsthesisEchocardiographyPulmonary ArteryCollateral CirculationAngiographyLeiomyomatosisEchocardiography, TransesophagealTricuspid ValveMultiple TraumaHepatectomyFatal OutcomeVascular GraftingArteriovenous FistulaAbnormalities, MultipleUltrasonography, PrenatalSuperior Cervical GanglionAtrial Function, RightFontan ProcedureProspective StudiesFeasibility StudiesLiver TransplantationRadiography, InterventionalBlood Flow VelocityChylothoraxCatheters, Indwelling