title: Malposition of central venous catheters. Incidence, management and preventive practices.
abstract: BACKGROUND
  Proper placement is an essential prerequisite for the use of central venous catheters. Our study was undertaken to determine the incidence of aberrant locations dependent on different anatomic approaches for various types of central venous catheters and to elucidate failures and pitfalls of preventive practices.
  
  
  METHODS
  2580 percutaneously inserted lines (including 538 tunneled devices and 112 implantable Port-A-Caths) introduced by Seldinger's technique were reviewed for inadvertent malpositioning.
  
  
  RESULTS
  Primary misplacement was evident on 47 occasions (1.82%), 38 times into large venous tributaries of the superior vena cava. 3 aberrant locations involved a persistent left superior vena cava, two catheters were placed into minor intrathoracic veins and in 3 patients inadvertent arterial cannulation occurred. The frequency of malpositioning was related to the anatomic approach and the catheter type used, but not to the physician's experience. Respective incidences were 4.12% for the left internal jugular access, but were lower for the right internal jugular (1.1%) and the right (1.01%) and left (0.89%) supraclavicular approach. Misplacement was more frequent with soft silicone catheters (2.53%) than with semi-rigid catheters (0.79%). All malpositions but one were detected on chest X-ray.
  
  
  CONCLUSIONS
  Our data suggest that the incidence of catheter malposition depends on the site of insertion, the type of material used, but not on the experience of the physician who inserted the catheter. Scrupulous use of preventive practices reduces the frequency of malpositioned catheters, but physicians must keep in mind potential pitfalls. Injection of radioopaque contrast medium into the catheter during control chest X-ray should be done even with opaque catheters.
authors.affiliation: Department of Nephrology and Dialysis, University of Vienna, Austria.
authors.forename: M
authors.initials: M
authors.lastname: Muhm
authors.forename: G
authors.initials: G
authors.lastname: Sunder-Plassmann
authors.forename: R
authors.initials: R
authors.lastname: Apsner
authors.forename: T
authors.initials: T
authors.lastname: Pernerstorfer
authors.forename: A
authors.initials: A
authors.lastname: Rajek
authors.forename: A
authors.initials: A
authors.lastname: Lassnigg
authors.forename: R
authors.initials: R
authors.lastname: Prokesch
authors.forename: K
authors.initials: K
authors.lastname: Derfler
authors.forename: W
authors.initials: W
authors.lastname: Druml
mesh_terms: D000328:Adult; D002405:Catheterization, Central Venous / Q000295:instrumentation*; D002408:Catheters, Indwelling / Q000706:statistics & numerical data*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D007601:Jugular Veins; D013350:Subclavian Vein