Related Experiment Video
Updated: Feb 15, 2026

An In Vitro Bladder Model of Catheter-Associated Urinary Tract Infection
Published on: June 24, 2025
Urinary retention in early urinary catheter removal after colorectal surgery
Amandeep Ghuman1, Naomi Kasteel2, Ahmer A Karimuddin3
1Department of Surgery, Division of General Surgery, University of British Columbia, 950 West 10th Ave. Vancouver, BC, V5Z 1M9, Canada.
Background:
High urinary infection (UTI) rate (12%) for our rectal surgery prompted practice change to early catheter removal (postoperative day 2) and prophylactic tamsulosin. Here we report urinary retention (UR) and UTI after this change.
Methods:
Retrospective cohort study in male patients 50+ years undergoing elective colorectal surgery from July 2015 to July 2017. Multivariate regression was used to determine risk factors for urinary retention.
Results:
157 patients, 57 without and 100 with tamsulosin had UR 11.46% and UTI 5.13%. Of all potential risk factors, ileus (OR 5.50, 95% CI: 1.86-16.24) was an independent risk factor for urinary retention.
Conclusions:
Urinary retention of 11% after colorectal resection is within literature range and associated with post-operative ileus. Tamsulosin did not affect UR in our small study sample. Early catheter removal was associated with decreased UTI rate.
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