title: Port catheter insufficiency: incidence and clinical-radiological correlations.
abstract: BACKGROUND
  The purpose of this study was to analyse the radiological findings and corresponding clinical signs in patients with port catheter insufficiency.
  
  
  METHODS
  In this single-centre retrospective study, 1,185 totally implantable port devices were implanted from January 1997 to December 2005. Patients with suspected port insufficiency receiving a port angiography were evaluated, and patient files were analysed for the accompanying clinical signs of the port malfunction.
  
  
  RESULTS
  In this period, 186 port angiographies were obtained. In all, 223 radiological findings were identified, which translates into a complication rate of 18.9% in regard to all im-planted ports (aip). The complications were as follows: port catheter thrombosis (53.4%, 10% aip), pinch off syndrome (24.2%, 4.6% aip), catheter migration (7.2%, 1.4% aip), catheter retraction (6.3%, 1.2% aip), catheter rupture (4.0%, 0.8% aip), catheter disconnection (3.1%, 0.6% aip), and port chamber defect (1.8%, 0.3% aip). The main clinical symptoms included blood aspiration impossibility, resistance to injection of fluids, chest wall swelling, and pain during injection.
  
  
  CONCLUSIONS
  The knowledge of the different types of port catheter insufficiencies in correspondence with the possible associated clinical signs plays a key role in the recognition and prevention of further port-associated complications such as paravasation.
authors.affiliation: Dept. of Radiology, University Hospital of the Martin-Luther University Halle-Wittenberg, Germany.
authors.forename: Alexey
authors.initials: A
authors.lastname: Surov
authors.forename: Karin
authors.initials: K
authors.lastname: Jordan
authors.forename: Michael
authors.initials: M
authors.lastname: Buerke
authors.forename: Dirk
authors.initials: D
authors.lastname: Arnold
authors.forename: Endris
authors.initials: E
authors.lastname: John
authors.forename: Rolf-Peter
authors.initials: RP
authors.lastname: Spielmann
authors.forename: Curd
authors.initials: C
authors.lastname: Behrmann
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002405:Catheterization, Central Venous / Q000706:statistics & numerical data*; D015897:Comorbidity; D019544:Equipment Failure Analysis / Q000706:statistics & numerical data*; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D010690:Phlebography / Q000706:statistics & numerical data; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D014689:Venous Insufficiency / Q000453:epidemiology*; D020246:Venous Thrombosis / Q000453:epidemiology*