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Updated: May 7, 2026

An In Vitro Bladder Model of Catheter-Associated Urinary Tract Infection
Published on: June 24, 2025
What we don't know may hurt us: urinary drainage system tubing coils and CA-UTIs-A prospective quality study
Zeynep Kubilay1, Lennox K Archibald, H Lester Kirchner
1Department of Critical Care Medicine, The Geisinger Health System, Danville, PA; Department of Medicine, Marmara University Teaching and Research Hospital, Istanbul, Turkey.
Abstract:
Catheter-associated urinary tract infections account for >30% of infections in acute care hospitals. We hypothesized that coiling of/kinks in the indwelling urinary bladder catheter (IUBC) drainage bag tubing would increase the occurrence of infection/bacteriuria. Ninety-one patient events were evaluated over 60 days. All outcome variables trended with greater frequency among those with a coil in the IUBC tubing; only fever (temperature > 38.1°C) correlated significantly between groups (P = .003). If IUBC is unavoidable, strategies such as keeping collection bag below the level of bladder and avoiding any coiling in the drainage system should be employed. Further study of these phenomena is needed.
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