Vena Cava, InferiorVena Cava, SuperiorSuperior Vena Cava SyndromeVena Cava FiltersVenae CavaeSyndromeAzygos VeinPhlebographyInferior ColliculiRenal VeinsBudd-Chiari SyndromeVenous ThrombosisHepatic VeinsPulmonary EmbolismVascular NeoplasmsIliac VeinVascular MalformationsBrachiocephalic VeinsDown SyndromeMetabolic Syndrome XTomography, X-Ray ComputedHeart AtriaDevice RemovalTreatment OutcomeAbnormalities, MultipleCatheterization, Central VenousLeiomyosarcomaJugular VeinsNephrotic SyndromePulmonary VeinsCoronary SinusHeterotaxy SyndromePortal VeinMesenteric Artery, InferiorSjogren's SyndromeConstriction, PathologicMagnetic Resonance ImagingScimitar SyndromeVeinsFemoral VeinVenous PressureHeart Defects, CongenitalHeart Bypass, RightAnastomosis, SurgicalSitus InversusThrombosisRetrospective StudiesTime FactorsProsthesis ImplantationTurner SyndromeFollow-Up StudiesSubclavian VeinCatheter AblationVascular DiseasesHeart NeoplasmsDogsFatal OutcomeAtrial FlutterCushing SyndromeMyelodysplastic SyndromesAnticoagulantsIncidental FindingsVascular Surgical ProceduresRetroperitoneal NeoplasmsBlood Vessel Prosthesis ImplantationCatheterizationConstrictionMandibular NerveHeart Septal Defects, AtrialThrombophlebitisPolytetrafluoroethyleneThrombectomyAcute Coronary SyndromePolycystic Ovary SyndromeEchocardiographyCardiovascular AbnormalitiesMesenteric VeinsEquipment FailureForeign-Body MigrationLeiomyomatosisStentsElectrocardiographyWilliams SyndromeAntiphospholipid SyndromePulmonary ArteryOlivary NucleusCollateral CirculationPortacaval Shunt, SurgicalUltrasonography, PrenatalInferior Wall Myocardial InfarctionSick Sinus SyndromeAngiographyDiGeorge SyndromeProspective StudiesTricuspid ValveBehcet SyndromeHepatectomyPregnancyHorner SyndromePrader-Willi Syndrome