title: Noble metal alloy-coated latex versus silicone Foley catheter in short-term catheterization: a randomized controlled study.
abstract: OBJECTIVE
  The primary aim of this study was to compare the incidence of catheter-associated bacteriuria with a noble metal alloy-coated latex catheter or a non-coated silicone catheter in patients undergoing elective orthopaedic surgery with short-term catheterization. Secondary objectives included identifying risk factors for bacteriuria and catheter-associated urinary tract symptoms.
  
  
  METHODS
  The study compared 217 patients randomized to and receiving a silicone catheter with 222 patients treated with a coated latex catheter. Before removal of the catheter a sample for urinary culture was obtained. Bacteriuria was defined as the growth of ≥100 000 cfu/ml. A logistic regression model was used to identify risk groups for bacteriuria. Patients were interviewed about urinary tract symptoms during and after catheterization.
  
  
  RESULTS
  The incidence of bacteriuria was 1.5% with the coated latex catheter and 5.5% with the silicone catheter (p = 0.027) after a mean period of 2 days' catheterization time. Female gender (odds ratio 6.02) and obesity (odds ratio 5.08) were significant risk factors for bacteriuria. A quarter of the patients reported at least one symptom from the urinary tract during and after catheterization. Most patients defined the symptoms as "yes, a little" and a few consulted a healthcare professional because of the symptoms.
  
  
  CONCLUSIONS
  This study confirmed previous results that the noble metal alloy coating significantly reduces the risk of catheter-associated bacteriuria in short-term catheterization (1-3 days). Female gender and obesity were significant risk factors for developing bacteriuria, while the use of an open drainage system and insertion of the catheter on the ward were not.
authors: Urology Department , University Hospital of Skane, Malmö , Sweden. karin.stenzelius@skane.se
authors: Karin
authors: K
authors: Stenzelius
authors: Siv
authors: S
authors: Persson
authors: Ulla-Britt
authors: UB
authors: Olsson
authors: Monica
authors: M
authors: Stjärneblad
mesh_terms: D000368:Aged; D001437:Bacteriuria / Q000453:epidemiology*; D002404:Catheterization / Q000295:instrumentation* / Q000379:methods; D002408:Catheters, Indwelling / Q000009:adverse effects*; D005260:Female; D006046:Gold; D006801:Humans; D015994:Incidence; D007840:Latex; D008297:Male; D008670:Metals; D008875:Middle Aged; D009765:Obesity / Q000150:complications; D019637:Orthopedic Procedures; D010165:Palladium; D012307:Risk Factors; D012737:Sex Factors; D012828:Silicones; D012834:Silver; D014552:Urinary Tract Infections / Q000453:epidemiology
chemical_list: D007840:Latex; D008670:Metals; D012828:Silicones; D012834:Silver; D010165:Palladium; D006046:Gold