Urinary catheter: can exposure time and gauge affect biofi lm formation?

Objective: To assess the effects of exposure time and gauge of Foley catheters in biofilm formation. Method: In vitro study with samples of Foley catheter fragments made of siliconized latex of different gauges (#14 and #16 French gauge). Artit cial urine was produced, which was inoculated with Stap...

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Bibliographic Details
Published in:Acta paulista de enfermagem 2018-09, Vol.31 (5), p.535-541
Main Authors: Batista, Odinéa Maria Amorim, Monteiro, Rachel Maciel, Machado, Marinila Buzanelo, Ferreira, Adriano Menis, Valle, Andreia Rodrigues Moura da Costa, Watanabe, Evandro, Madeiro, Maria Zélia de Araújo, Moura, Maria Eliete Batista
Format: Article
Language:English
Subjects:
Bacteria
Biofilms
Catheters
Exposure
Fragmentation
Gauges
Latex
Medical instruments
Prevention
Pseudomonas aeruginosa
Scanning electron microscopy
Siliconizing
Staphylococcus aureus
Urinary tract diseases
Urinary tract infections
Urine
Urogenital system
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Summary:Objective: To assess the effects of exposure time and gauge of Foley catheters in biofilm formation. Method: In vitro study with samples of Foley catheter fragments made of siliconized latex of different gauges (#14 and #16 French gauge). Artit cial urine was produced, which was inoculated with Staphylococcus aureus (ATCC 25923) and Pseudomonas aeruginosa (ATCC 27853) standard bacteria, incubated at 37 °C for 24 hours and 72 hours. The material was analyzed by means of culture (bacterial load) and scanning electron microscopy. Results: There was no difference in bacterial load of biofilms formed in Foley catheter surfaces with regard to different gauges (p > 0.05). On the other hand, exposure time (24 hours and 72 hours) was a determining factor for P aeruginosa biofilm formation in Foley catheters (p < 0.05). Conclusion: Exposure time had an effect on P aeruginosa biofilm formation in Foley catheters, regardless of gauges.
ISSN:0103-2100
1982-0194
DOI:10.1590/1982-0194201800074