Femoral VeinGroinVeinsSaphenous VeinPopliteal VeinVaricose VeinsIliac VeinPortal VeinVenous InsufficiencyHernia, FemoralVenous ValvesPhlebographyUltrasonography, Doppler, DuplexHernia, InguinalVenous ThrombosisJugular VeinsFemoral ArteryThighCatheterization, PeripheralPulmonary VeinsLegMesenteric VeinsVascular Surgical ProceduresThrombophlebitisVascular PatencySubclavian VeinHepatic VeinsInguinal CanalVena Cava, InferiorVascular MalformationsCatheterization, Central VenousRenal VeinsVenous PressureUmbilical VeinsBlood Vessel ProsthesisTreatment OutcomeArteriovenous Shunt, SurgicalVascular GraftingLower ExtremityVaricose UlcerFascia LataVena Cava FiltersCatheters, IndwellingPubic BoneVascular NeoplasmsPolyethylene TerephthalatesUltrasonography, Doppler, ColorTime FactorsThrombosisPulmonary EmbolismPolytetrafluoroethyleneCardiac CatheterizationLigationBlood Vessel Prosthesis ImplantationBlood Flow VelocityDogsPhlebotomySplenic VeinCerebral VeinsRegional Blood FlowCatheterizationPostoperative ComplicationsDissectionBandagesFollow-Up StudiesCentral Venous PressureProsthesis-Related InfectionsAnastomosis, SurgicalConstriction, PathologicHerniorrhaphyPostthrombotic SyndromeProspective StudiesRetinal VeinEdemaReoperationGraft Occlusion, VascularRetrospective StudiesAzygos VeinAneurysm, FalseCadaverBrachiocephalic VeinsRecurrenceGravity Suits