title: Radiological interventions for correction of central venous port catheter migrations.
abstract: OBJECTIVE
  The purpose of this study was to evaluate radiological-interventional central venous port catheter corrections in migrated/malpositioned catheter tips.
  
  
  METHODS
  Thirty patients with migrated/malpositioned port catheter tips were included in this retrospective analysis. To visualize the catheter patency a contrast-enhanced port catheter series was performed, followed by transfemoral port catheter correction with various 5-F angiographic catheters (pigtail; Sos Omni), gooseneck snares, or combinations thereof.
  
  
  RESULTS
  One patient showed spontaneous reposition of the catheter tip. In 27 of 29 patients (93%), radiological-interventional port catheter correction was successful. In two patients port catheter malposition correction was not possible, because of the inability to catch either the catheter tip or the catheter in its course, possibly due to fibrin sheath formation with attachment of the catheter to the vessel wall. No disconnection or port catheter dysfunction was observed after correction.
  
  
  CONCLUSIONS
  We conclude that in migrated catheter tips radiological-interventional port catheter correction is a minimally invasive alternative to port extraction and reimplantation. In patients with a fibrin sheath and/or thrombosis port catheter correction is often more challenging.
authors.affiliation: Department of Radiology, Charité, Universitätsmedizin-Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany. bernhard.gebauer@charite.de
authors.forename: Bernhard
authors.initials: B
authors.lastname: Gebauer
authors.forename: Ulf Karl
authors.initials: UK
authors.lastname: Teichgräber
authors.forename: Petr
authors.initials: P
authors.lastname: Podrabsky
authors.forename: Michael
authors.initials: M
authors.lastname: Werk
authors.forename: Enrique Lopez
authors.initials: EL
authors.lastname: Hänninen
authors.forename: Roland
authors.initials: R
authors.lastname: Felix
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000295:instrumentation*; D002405:Catheterization, Central Venous / Q000295:instrumentation*; D002408:Catheters, Indwelling; D004867:Equipment Design; D005260:Female; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D007601:Jugular Veins / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D015642:Radiology, Interventional / Q000295:instrumentation*; D012189:Retrospective Studies; D013350:Subclavian Vein / Q000000981:diagnostic imaging; D016896:Treatment Outcome