Objective: Evaluate the clinical efficacy of implementation of silver-impregnated catheters.
Methods: The Madison VA Hospital evaluated a silver-impregnated foley catheter using a ‘no-risk’ product trial for 24-months. CAUTI rates using the silver-impregnated foley catheter were compared to the previous 12-months using standard foley catheters. In addition, antimicrobial use and length of stay information were collected for both time periods.
Results: The incidence of CAUTI was 0.83 per 1000 patient-days (19 CAUTI in 22789 patient days) in the pre-intervention period and 0.48 per 1000 patient-days in the intervention period (23 in 48915 patient days). The rate ratio was 0.56 (95% CI 0.29- 1.09), which trended toward significance, P= 0.06. A change in antimicrobial treatment patterns was noted; IV antibiotic use was 53% in standard foley group compared to 13% in silver-impregnated foley group. There were no differences in the total number of patients receiving antimicrobial treatment (89% in standard foley group compared to 70% in silver-impregnated foley group).
Conclusions: Silver-impregnated catheters may be useful in preventing CAUTI. There was a decrease of IV antimicrobial therapy noted in the silver-impregnated catheter group. More studies should be conducted looking at the antimicrobial treatment patterns when silver-impregnated foley catheters are used.