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Published on: August 5, 2010
Profile of urinary tract infections in paediatric patients
Palak Gupta, Jharna Mandal1, Sriram Krishnamurthy
1Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER)), Puducherry, India.
Insights
This study on pediatric urinary tract infections (UTI) found that age and gender influence UTI profiles and outcomes. Boys over one year with UTI require extensive evaluation due to higher risks of vesicoureteric reflux (VUR) and renal scarring.
Area of Science:
- Pediatric Nephrology
- Infectious Diseases
- Urology
Background:
- Urinary tract infections (UTI) are common in children, with varying presentations and potential for long-term sequelae.
- Understanding the specific profile of pediatric UTI, including causative pathogens and associated anatomical abnormalities, is crucial for effective management.
Purpose of the Study:
- To determine the epidemiological profile of pediatric UTI.
- To identify common bacterial pathogens and their antibiotic susceptibility patterns.
- To assess the prevalence of vesicoureteric reflux (VUR) and renal scarring in children with UTI.
Main Methods:
- A cross-sectional study included 524 children under 13 years with suspected UTI.
- Uropathogen isolation and antibiotic susceptibility testing were performed.
- Micturating cysto-urethrography (MCU) and DMSA scans were utilized to evaluate VUR and renal scarring.
Main Results:
- Culture-proven UTI was diagnosed in 186 (35.4%) children, with a higher incidence in males (69.35%) and infants (56.4%).
- Vesicoureteric reflux (VUR) was observed in 18 patients and renal scarring in 33.
- Escherichia coli was the predominant pathogen, showing sensitivity to nitrofurantoin, aminoglycosides, and cefoperazone-sulbactam.
Conclusions:
- Pediatric UTI prevalence and characteristics vary significantly with age and gender.
- Boys over one year of age with UTI warrant thorough investigation for VUR and renal scarring.
- Aminoglycosides, cefoperazone-sulbactam, and nitrofurantoin demonstrated superior in vitro efficacy against Gram-negative uropathogens compared to meropenem.
Background & Objectives:
This cross-sectional study was conducted at a tertiary care centre in Puducherry, south India, with the aim of finding the profile of the paediatric urinary tract infection (UTI), bacterial pathogens involved, and also to observe vesicoureteric reflux (VUR) and renal scarring in these patients.
Methods:
A total of 524 paediatric patients ≤13 yr, suspected to have UTI, were included in the study. Urine samples were collected, processed for uropathogen isolation and antibiotic susceptibility test was performed as per the Clinical and Laboratory Standards Institute (CLSI) guidelines. Thirty two culture proven children with UTI underwent micturating cysto-urethrography (MCU) and dimercaptosuccinic acid (DMSA) scanning was done for 69 children.
Results:
o0 f the 524 children, 186 (35.4%) had culture proven UTI with 105 (56.4%) being infants, 50 (27.4%) between 1-5 yr, 30 (16.12%) between 5-13 yr and 129 (69.35%) males. Posterior urethral valve (PUV) was noted in three, hydronephrosis in one, VUR in 18 and renal scarring in 33. VUR as well as renal scarring were more in males >1 yr of age. A significant association (P=0.0054) was noted with a combined sensitivity and specificity of these investigations being 83 and 90 per cent, respectively of the MCU and DMSA scans for detecting VUR. Escherichia coli was the most common pathogen isolated, sensitive to nitrofurantoin, followed by cefoperazone-sulbactam, aminoglycosides and meropenem.
Interpretation & Conclusions:
Our results indicate that UTI varies with age and gender and extensive evaluation is required in boys over one year of age with UTI. This study also highlights the better efficacy of aminoglycosides, cefoperazone-sulbactam and nitrofurantoin in vitro compared with meropenem in Gram-negative uropathogens.
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