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Updated: Dec 27, 2025

An In Vitro Bladder Model of Catheter-Associated Urinary Tract Infection
Published on: June 24, 2025
Urinary Tract Infection in Pediatric Patients on Clean Intermittent Catheterization via a Mitrofanoff port with
Cenita James Sam1, Cindrel T Jagadeesan1, Sudipta Sen1
1Department of Paediatric Surgery, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India.
Insights
Reused catheters for clean intermittent catheterization (CIC) were colonized in 57% of patients. However, catheter colonization may not directly cause urinary tract infections (UTIs) in this pediatric population.
Area of Science:
- Urology
- Pediatric Surgery
- Infectious Diseases
Background:
- Clean intermittent catheterization (CIC) is a common procedure for managing bladder dysfunction in children.
- Catheter reuse is practiced in some settings, raising concerns about microbial colonization and infection risk.
- Urinary tract infections (UTIs) are a significant complication associated with catheterization.
Purpose of the Study:
- To investigate the prevalence of microbial colonization on reused catheters before insertion in pediatric patients undergoing CIC.
- To determine the association between colonized reused catheters and the occurrence of UTIs in this patient group.
Main Methods:
- A prospective study involving 28 pediatric surgery patients using CIC via a Mitrofanoff port.
- Catheter tips and urine samples were collected for culture analysis.
- A questionnaire assessed CIC practices and UTI history.
Main Results:
- Catheter colonization was observed in 16 out of 28 (57%) reused catheters.
- Urine cultures were positive in 17 out of 28 (61%) patients, mostly asymptomatic.
- There was a weak correlation between catheter colonization and positive urine cultures; only 9/16 colonized catheters had positive urine cultures.
Conclusions:
- A significant proportion of reused catheters for CIC show microbial colonization.
- The study suggests that reused catheter colonization may not be a primary driver of UTIs or positive urine cultures in this pediatric population.
- Further research is needed to elucidate the complex relationship between catheter reuse, colonization, and infection in CIC.
Objective:
The objective of this study is to find out whether the reused catheters for clean intermittent catheterization (CIC) are colonized before insertion and its association with urinary tract infection (UTI).
Materials And Methods:
This is a study conducted on 28 pediatric surgery patients who are on CIC via a Mitrofanoff port and who were reusing catheters, in a tertiary care private medical college hospital for 6-month period. Catheters to be used for the next catheterization were sent for culture along with urine culture. A questionnaire was utilized to assess CIC practice and UTI.
Results:
Diseases of patients were: neurogenic bladder and exstrophy-epispadias and posterior urethral valve. Twenty-one of them had an augmented bladder. Hydronephrosis was present in ten and vesicoureteral reflux (VUR) in five. Their mean duration of CIC was 5.3 years. Of 28 catheter tip samples, 16 catheters were colonized with organism. Of the 28 urine culture samples, 17 cultures were positive and all were asymptomatic except one. Of the 16 positive catheter samples, only 9 had positive urine culture; four of them had grown different organisms and five of them had the same organism, and even in these five, single organism was seen only in three. Urine culture grew Gram-negative organism in 85%, but catheter grew Gram-positive organism in 46%. No difference was found in the variables between both groups such as hydronephrosis, VUR, and augmented bladder.
Conclusion:
Reused catheters were colonized in 57% of the study patients, but reused catheter may not be the cause of culture positivity or UTI in the study population.
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