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J Hosp Infect. 1996 Feb;32(2):105-15.

Examination of biofilm formation and risk of infection associated with the use of urinary catheters with leg bags.

Author information

1
Microbial Technology Department, CAMR, Salisbury, Wiltshire, UK.

Abstract

Urinary catheters and legs bags were simultaneously colonized by Escherichia coli and Proteus vulgaris using a model urinary drainage system. the system was continuously supplied with filter-sterilized artificial urine using a diurnal flow pattern. The extent of colonization was determined by assessment of both planktonic and biofilm formation over time. Contamination of the catheters resulted in rapid colonization of the whole system within a 24 h period. Contamination of the leg bags resulted in an ascending biofilm formation over a four-day period. Results indicated that infection risk could be minimized by changing the catheter and leg bags at least once a week. The design of the leg bags was not found to influence the rate or extent of biofilm formation.

PMID:
8666761
DOI:
10.1016/s0195-6701(96)90052-3
[Indexed for MEDLINE]

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