Related Experiment Video
Updated: Aug 23, 2025

Recurrent Escherichia coli Urinary Tract Infection Triggered by Gardnerella vaginalis Bladder Exposure in Mice
Published on: December 4, 2020
Long-term efficacy of complete trigonal electrofulguration for women with recurrent urinary tract infections
Leopoldo Ribeiro-Filho1, Caio V Suartz1, Natalia D S F Braz1
1Division of Urology, University of São Paulo School of Medicine, Sao Paulo, Brazil.
Introduction And Objective:
Recurrent urinary tract infections (R-UTIs) have a negative impact on quality of life and contribute to antimicrobial resistance. Long-term antibiotic therapy is the main treatment alternative but, in some cases, this approach may not be accepted by the patient, is ineffective or poorly tolerated. In selected women, electrofulguration (EF) of trigonal lesions has been shown to reduce urinary tract infection (UTI) episodes.
Methods:
Between August 2006 and December 2017, 73 women with R-UTI had their data collected prospectively and analyzed. We evaluated the rate of UTIs during the initial 2 years of follow-up after fulguration based on symptoms and a positive urine culture. All patients failed with multiple antibiotic courses and were offered endoscopic electrofulguration of the entire trigonal and bladder neck mucosa with a rollerball probe. We present our long-term results using a strategy of complete fulguration of the trigone in women with R-UTIs.
Results:
The median age was 64 years (range: 17-76 years) and the median follow-up time after EF was 4.2 years (range: 2.5-14 years). Overall, 70 patients (96%) remained free of UTI episodes during the first year of follow-up, at 2 years of follow-up, 57, 53% remained infection-free. Currently, UTIs are typically sparse, mild, and caused by multisensitive bacteria.
Conclusions:
Complete trigonal and bladder neck mucosal fulguration promoted a significant reduction of UTI episodes during the first 2 years of follow-up. Prospective controlled studies are needed to determine the role of EF in women with R-UTI.
Related Concept Videos
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Urinary Tract Infection IV: Nursing Management
Urinary Tract Infection II: Pathophysiology
Electroconvulsive Therapy
Urinary Tract Calculi VI: Surgical Management
Urinary Tract Calculi III: Medical Management

