Objectives
To determine changes in the distribution of uropathogens and their antimicrobial resistance in pediatric patients in a children's hospital from 2005 to 2016.
Methods
A cross-sectional analysis of uropathogens and their antimicrobial resistance within inpatient children was performed over the 11-year period, 2005 to 2016, in Ali Asghar children's hospital. The rate of antibiotic resistance among patients was evaluated according to demographic data including age, sex, urinary tract abnormities and history of antibiotic consumption.
Results
In total, 958 female and 349 male positive cultures were analyzed.
Escherichia coli
(
E. coli
) (77.6%) was the most common causative agent of urinary tract infection (UTI) in children and
Klebsiella pneumoniae
(10.4%),
Pseudomonas aeruginosa
(2.4%), and
Enterococcus
spp (2.4%) were less frequent isolated bacteria. The resistance rates of
E. coli
isolates were increased against amikacin, ceftriaxone, ceftazidime, ciprofloxacin, cotrimoxazole and imipenem from 2005 to 2010. However, we observed a decreasing trend for some of antibiotics including amikacin, gentamicin, imipenem, ceftazidime and cotrimoxazole during 2014–2016. The rate of antibiotic resistance was greater in boys than in girls against many antibiotics. The rate of resistance to amikacin, gentamicin, nitrofurantoin and cotrimoxazole in patients aged <1 year was higher than other age groups (
p
<0.001). A higher antibiotic resistance rate was observed in patients with anatomical abnormality and those who have had a history of antibiotic consumption.
Conclusion
The study indicated the significant decrease in
E. coli
antibiotic resistance in the last 3 years. An effective empirical treatment regime should be based on local epidemiology and antimicrobial susceptibility testing.