Bacteriological Pattern of Urinary Tract Infection in Children Presenting to Pediatric Department
findings
are
consistent
with
the
established was unavailable. Another important consideration is
infection. Catheterized urine
epidemiological pattern of pediatric UTI, where girls catheter-associated
are more frequently affected after infancy because of specimens are frequently required in infants and non-
anatomical factors such as a shorter urethra and closer toilet-trained children to minimize contamination
proximity of the urethral opening to the perineum.14,15 compared with bag urine collection.21 However,
However, because this was a hospital-based study hospitalized or catheter-exposed children may exhibit a
employing consecutive sampling, the observed different microbiological profile compared with
demographic distribution should be interpreted as uncomplicated community-acquired UTI. Organisms
representative of children presenting to a tertiary-care such as Enterococcus spp., Pseudomonas spp., and
pediatric department rather than the true community staphylococcal isolates are more commonly associated
prevalence of pediatric UTI. The clinical manifestations with recurrent, catheter-associated, complicated, or
observed in this study included abdominal pain, hospital-acquired infections.22 Since the present study
dysuria, fever, urinary frequency, vomiting, irritability, did not fully stratify cases according to hospitalization
and poor feeding, highlighting the well-recognized status, catheter exposure, or community- versus
variability in pediatric UTI presentation. Older children hospital-acquired infection, the bacteriological findings
commonly present with urinary complaints such as should be interpreted descriptively and cautiously. The
dysuria and frequency, whereas infants and younger antimicrobial
susceptibility
pattern
demonstrated
children often exhibit non-specific symptoms including moderate sensitivity to several antibiotics. Cefixime
fever, vomiting, irritability, and poor feeding.16,17 This showed the highest sensitivity among culture-positive
overlap in clinical presentation emphasizes the isolates, whereas amoxicillin and co-amoxiclav
importance of microbiological confirmation, as reliance demonstrated the highest resistance rates. Similar
on symptoms alone may overestimate the actual resistance trends among pediatric uropathogens have
prevalence of UTI. In the present study, urine culture been documented in recent regional and international
was positive in 53 of 109 clinically suspected cases, studies.23,24 Organism-specific analysis further revealed
resulting in a culture positivity rate of 48.6% (95% CI: higher resistance of Proteus spp. to amoxicillin,
39.4%-57.9%). Therefore, the findings should be ciprofloxacin, and nitrofurantoin, while Staphylococcus
interpreted as bacteriological characteristics among spp. demonstrated increased resistance to co-amoxiclav
culture-confirmed cases rather than among all clinically and gentamicin. These observations underscore the
suspected pediatric UTIs. The bacteriological profile clinical importance of organism-specific susceptibility
differed from the conventional pattern described in reporting rather than relying solely on overall
most pediatric UTI literature, where Escherichia coli sensitivity percentages. However, because each
accounts for approximately 80–90% of infections.18,19
bacterial group contained relatively few isolates, these
Among the 53 culture-positive cases, Staphylococcus
spp. was the most frequent isolate, accounting for 11
cases (20.8%; 95% CI: 12.0%-33.5%), followed by
Enterococcus spp. (18.9%), Proteus spp. (17.0%),
Escherichia coli (15.1%), Klebsiella spp. (15.1%), and
Pseudomonas spp. (13.2%). Nevertheless, these
findings should not be interpreted as evidence of a
changing global epidemiological trend in pediatric UTI,
where E. coli remains the predominant uropathogen.
Instead, the observed organism distribution may reflect
local hospital-based sampling, recurrent infections,
findings should be regarded as descriptive rather than
definitive. Imipenem resistance deserves particular
attention. Resistance was observed in 26 of 53 isolates
(49.1%), suggesting hospital exposure, complicated
infection, prior antibiotic use, or the presence of
multidrug-resistant organisms.6,25 Nevertheless, the
absence of MIC testing, MDR classification, molecular
resistance analysis, and infection stratification limits
definitive interpretation. Statistical analysis further
demonstrated no significant association between
bacterial isolate and gender, with Fisher-Freeman-
Halton exact testing remaining non-significant and
Cramer's V indicating only a weak association (0.214).
Similarly, pyuria was not significantly associated with
culture positivity, suggesting that urine microscopy
alone may not reliably differentiate culture-confirmed
UTI cases. Binary logistic regression also failed to
identify any independent predictor of culture positivity
among assessed clinical and laboratory variables.
Overall, these findings reinforce the importance of
urine culture, contamination control, and regular
antimicrobial surveillance in guiding empirical therapy
for pediatric UTIs.
previous
antibiotic
exposure,
catheter-collected
The
specimens,
or possible
contamination.
predominance of Staphylococcus spp. particularly
warrants cautious interpretation because certain
staphylococcal species, such as Staphylococcus
saprophyticus, may represent true uropathogens,
whereas coagulase-negative staphylococci can also
indicate contamination if collection technique, pyuria,
colony count, and clinical correlation are not adequately
assessed.20 Although contaminated samples with mixed
growth or insignificant colony counts were excluded,
species-level confirmation of all staphylococcal isolates
July - September 2026
J Gandhara Med Dent Sci
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