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Updated: Jul 20, 2026

Urinary Tract Infection in a Small Animal Model: Transurethral Catheterization of Male and Female Mice
Published on: December 1, 2017
Intravesicular pressure monitoring does not cause urinary tract infection
Michael L Cheatham1, Scott G Sagraves, Jeffery L Johnson
1Orlando Regional Medical Center, Department of Surgical Education, 86 West Underwood Street, Suite 201, Orlando, Florida, USA. michael.cheatham@orhs.org
Objective:
To determine whether intravesicular pressure monitoring using a closed system increases the risk of nosocomial urinary tract infection.
Design:
Retrospective chart and database review.
Setting:
Surgical/trauma intensive care units of a regional level-I trauma center.
Patients:
3108 critically ill patients of which 122 patients underwent intravesicular pressure monitoring.
Interventions:
Severity-adjusted urinary tract infection rates were compared among patients with and without intravesicular pressure monitoring.
Measurements And Results:
Over a 24-month period, 122 consecutive patients had 2202 intravesicular pressure measurements performed. During 1448 urinary catheter days, 15 patients who required intravesicular pressure monitoring developed a urinary tract infection with a severity-adjusted device-related infection rate of 7.9 infections per 1000 catheter days. Of the 2986 patients who did not require such monitoring, 98 patients developed a urinary tract infection with an infection rate of 6.5 infections per 1000 catheter days (p=0.56).
Conclusions:
Intravesicular pressure monitoring using the closed transducer technique is safe and does not increase the risk of urinary tract infection.
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