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Antimicrob Resist Infect Control. 2014 Jul 25;3:23. doi: 10.1186/2047-2994-3-23. eCollection 2014.

Catheter associated urinary tract infections.

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Departments of Internal Medicine and Medical Microbiology, University of Manitoba, Health Sciences Centre, Room GG443 - 820 Sherbrook Street, Winnipeg, MB R3A 1R9, Canada.


Urinary tract infection attributed to the use of an indwelling urinary catheter is one of the most common infections acquired by patients in health care facilities. As biofilm ultimately develops on all of these devices, the major determinant for development of bacteriuria is duration of catheterization. While the proportion of bacteriuric subjects who develop symptomatic infection is low, the high frequency of use of indwelling urinary catheters means there is a substantial burden attributable to these infections. Catheter-acquired urinary infection is the source for about 20% of episodes of health-care acquired bacteremia in acute care facilities, and over 50% in long term care facilities. The most important interventions to prevent bacteriuria and infection are to limit indwelling catheter use and, when catheter use is necessary, to discontinue the catheter as soon as clinically feasible. Infection control programs in health care facilities must implement and monitor strategies to limit catheter-acquired urinary infection, including surveillance of catheter use, appropriateness of catheter indications, and complications. Ultimately, prevention of these infections will require technical advances in catheter materials which prevent biofilm formation.


Bacteriuria; Health care acquired infection; Indwelling urethral catheter; Urinary catheter; Urinary tract infection

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