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Effect on uropathogens of prophylaxis for urinary tract infection in spinal cord injured patients: preliminary study
1Department of Microbiology and Immunology, University of Western Ontario, London, Canada.
Abstract:
Spinal cord injured patients are highly prone to urinary tract infections. The high frequency of recurrences, the problems with drug resistance and the difficulties associated with diagnosis complicate the management. In a preliminary retrospective study of 30 patient files, we discovered that prophylactic antimicrobial therapy with trimethoprim-sulfamethoxazole, significantly reduced the incidence of symptomatic urinary tract infections. The prevention of infection resulted in cheaper healthcare expenses than treatment. ONe problematic outcome was that antibiotic therapy resulted in a dramatic change in the population of uropathogens infecting the host, from a predominantly Gram negative type to one dominated by Enterococcus faecalis.
Insights
Prophylactic trimethoprim-sulfamethoxazole significantly reduced urinary tract infections in spinal cord injured patients. However, this led to a shift in infecting bacteria towards Enterococcus faecalis.
Area of Science:
- Urology
- Infectious Diseases
- Neurology
Background:
- Spinal cord injury (SCI) patients frequently experience urinary tract infections (UTIs).
- Recurrent UTIs, antimicrobial resistance, and diagnostic challenges complicate management in SCI patients.
- UTIs in SCI populations represent a significant clinical and economic burden.
Purpose of the Study:
- To evaluate the efficacy of prophylactic antimicrobial therapy in reducing symptomatic UTIs among SCI patients.
- To assess the impact of prophylactic trimethoprim-sulfamethoxazole on healthcare costs.
- To investigate changes in uropathogen populations following antimicrobial prophylaxis.
Main Methods:
- A preliminary retrospective study analyzing 30 patient files.
- Review of patient records to identify UTI incidence and causative agents.
- Comparison of healthcare expenses between treated and untreated patients.
Main Results:
- Prophylactic trimethoprim-sulfamethoxazole significantly decreased symptomatic UTIs.
- Infection prevention led to reduced healthcare expenditures compared to treatment.
- A notable shift in uropathogen profile was observed, with a transition from Gram-negative bacteria to Enterococcus faecalis dominance.
Conclusions:
- Prophylactic trimethoprim-sulfamethoxazole is effective in reducing UTI incidence in SCI patients.
- Antimicrobial prophylaxis may offer economic benefits by lowering treatment costs.
- Clinicians must monitor for shifts in uropathogen resistance patterns, particularly the rise of Enterococcus faecalis, during prophylactic therapy.