Abstract
Objective: To determine the prevalence, risk factors, and microbiological aetiology of catheter-associated urinary tract infection (CAUTI) among patients admitted to a general surgery unit.
Methods: This observational cohort study included 163 patients admitted to the Surgical Ward of a Tertiary Care Hospital in Islamabad from January 2024 to April 2025. Adult patients who required indwelling urinary catheterisation and were admitted to the General Surgery Unit were included. Data on demographics, catheterisation details, clinical outcomes, and microbiological results were also collected. CAUTI was diagnosed based on the CDC criteria. Statistical analyses were performed using SPSS v 28.
Results: The overall mean age was 46.78 (17.71) years (range 17-80 years). Of the 163 cases, 79 (48.5%) were male and 84 (51.5%) were female. The mean length of catheterisation and hospital stay was 2.20 (0.79) days and 3.50 (1.61) days, respectively. Patients were distributed based on their age group as follows: 64 (39.3%) in 17-40 years, 54 (33.1%) in 41-60 years, and 45 (27.6%) in 61-80 years. CAUTI Status was positive or present in 58 (35.6%) patients, whereas 105 (64.4%) had a negative status. The lengths of catheterisation for 1, 2, and 3 days were 37 (22.7%), 56 (34.4%), and 70 (42.9%) patients, respectively. The most common causative organism was Escherichia coli (46.6%), followed by Klebsiella spp. (20.7%) and Pseudomonas aeruginosa (15.5%).
Conclusion: The high prevalence of CAUTI in this cohort underscores a critical patient safety concern in resource-constrained surgical settings. The duration of catheterisation and insertion location (ER) were key, modifiable risk factors. The implementation of stringent catheter insertion and removal protocols and robust antimicrobial stewardship is urgently needed to mitigate this burden.
Keywords: Urinary tract infections, Catheter-associated urinary tract infection (CAUTI), Healthcare-associated infection
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