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Updated: Feb 27, 2026

Transurethral Induction of Mouse Urinary Tract Infection
Published on: August 5, 2010
Urinary tract infection after retrograde urethrogram in children: A multicenter study.
Neha R Malhotra1, Jared R Green2, Cynthia K Rigsby3
1Department of Urology, University of Illinois at Chicago, Chicago, IL, USA.
The risk of post-procedural urinary tract infection (ppUTI) after retrograde urethrogram (RUG) is low, with only 2.1% of patients experiencing this complication. Antibiotic prophylaxis before RUG was not associated with a reduced risk of ppUTI in this study population.
Area of Science:
- Urology
- Pediatric Urology
- Infectious Disease
Background:
- The risk of post-procedural urinary tract infection (ppUTI) following retrograde urethrogram (RUG) is not well-established.
- Prophylactic antibiotics may lower ppUTI risk but raise concerns about antibiotic resistance.
- Existing data on ppUTI rates after similar procedures (voiding cystourethrogram, urodynamics) show variability and low incidence, respectively.
Purpose of the Study:
- To quantify the incidence of ppUTI after RUG in pediatric patients.
- To identify clinical factors associated with the administration of prophylactic antibiotics during RUG.
Main Methods:
- Retrospective cohort study of pediatric patients undergoing RUG between January 1, 2004, and December 31, 2014.
- Data collected on patient demographics, indications for RUG, and antibiotic prophylaxis.
- ppUTI occurrence within 7 days post-procedure was the primary outcome.
Main Results:
- A total of 47 RUGs were performed on 42 male patients (median age 11.7 years).
- Indications included trauma, hypospadias, and urethral stricture.
- One patient (2.1%) developed a ppUTI; this patient had a history of posterior urethral valves and voiding dysfunction.
Conclusions:
- The incidence of ppUTI after RUG in this pediatric cohort is low.
- Pre-procedural antibiotic use was not correlated with a lower risk of ppUTI.
- Findings suggest the need for evidence-based guidelines to reserve antibiotic prophylaxis for high-risk patients undergoing RUG.
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Imaging Studies V: Intravenous Urography and Retrograde Pyelography
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Urinary Tract Infection I: Introduction
Imaging Studies VI: Voiding Cystourethrography and Cystography
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