Antibiotic prophylaxis after extraction of urinary catheter prevents urinary tract infections: A systematic review and meta-analysis

Objective: To investigate the effect of antibiotic prophylaxis for consequent urinary tract infections (UTIs) after extraction of urinary catheter and further explore the association between the outcome and clinical characteristics of patients. Methods: We systematically searched PubMed, Cochrane Library, EMBASE, and ClinicalTrials.gov databases through March 2020. Studies were included if they inquired into antibiotic prophylaxis for UTIs after extraction of a temporary (<= 14 days) urinary catheter. We used fixed-effect models to obtain pooled risk ratio (RR) estimates. Heterogeneity was evaluated with I-2 value. Sensitivity analysis and subgroup analysis were also conducted to assess heterogeneity. Results: We finally included 8 randomized controlled trials in our study. Only 2 studies showed that antibiotic prophylaxis can reduce the consequent UTIs after extraction of urinary catheters while 6 did not. Overall, antibiotic prophylaxis was associated with reduced UTIs (RR, 0.47, 95% confidence interval [CI] 0.28-0.72, P<.01, I-2 = 31%). Subgroup analysis indicated that patients who are older than 60 (RR = 0.50, 95% CI: 0.33-0.76, P<.05, I-2 = 29%) or received Trimethoprim/sulfamethoxazole (TMP/SMX; RR = 0.21, 95% CI: 0.09-0.48, P<.01, I-2 = 0%) or indwelling catheters for more than 5 days (RR = 0.34, 95% CI: 0.19-0.63, P<.01, I-2 = 0%) could get more benefit from antibiotic prophylaxis after extraction of catheters. Conclusions: Patients with catheters removed might get benefit from antibiotic prophylaxis as a result of fewer consequent UTIs, and those who have advanced age (over 60 years old) or long-term catheterization (over 5 days) could get more benefit from prophylaxis. And TMP/SMX could be a good choice of prophylaxis for UTIs after extraction of urinary catheters. This approach should apply to high-risk patients (advanced age or long-term catheterization) due to the potential harm of widespread antibacterial agents such as side effects and bacterial resistance. (C) 2020 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

Automated summary

Antibiotic prophylaxis after removal of urinary catheters can reduce subsequent urinary tract infections, especially for patients older than 60, using TMP/SMX, or with catheterization for more than 5 days.