title: Microbial contamination of haemodialysis catheter connections.
abstract: Bacterial contamination and colonisation of the haemodialysis catheter is a reason for infection in dialysis patients. One reason for contamination may be frequent routine connections at the beginning, during and end of dialysis. Higher infection rates observed with double lumen catheters may be due to the absence of the sterile, disposable device that is fitted between the blood tubing and the catheter hubs with single lumen catheters. A sterile, disposable extension was implemented at the author's unit for use in dialysis with double lumen catheters. The proximal and distal ends of the extension were assessed for microbial contamination after standard dialysis. Results show microbial contamination in almost 30% of the samples retrieved from the extensions. Experiences in PD and the behaviour of skin bacteria on polymers, suggest that disposable extensions might have the potential to serve as a barrier or absorber for bacterial contamination.
authors.affiliation: Klinikum Garmisch-Partenkirchen, II. Internal Clinic, Murnau, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Gorke
mesh_terms: D001207:Asepsis / Q000379:methods; D001419:Bacteria / Q000254:growth & development / Q000302:isolation & purification; D001783:Blood Flow Velocity; D002405:Catheterization, Central Venous / Q000295:instrumentation*; D002408:Catheters, Indwelling / Q000382:microbiology*; D015169:Colony Count, Microbial; D004866:Equipment Contamination / Q000517:prevention & control / Q000706:statistics & numerical data*; D004867:Equipment Design; D005060:Europe; D005260:Female; D006436:Hemodialysis Units, Hospital; D006801:Humans; D017053:Infection Control / Q000379:methods; D008297:Male; D006435:Renal Dialysis / Q000295:instrumentation*; D012307:Risk Factors; D013997:Time Factors