Aim: Very low birth weight infants admitted to the neonatal intensive care unit are at increased risk of urinary tract infection (UTI). In this study we aimed to assess the risk factors, clinical findings, presence of urinary anomalies, and most commonly isolated pathogens in preterm infants diagnosed with UTI. Materials and Method: Twenty-seven patients who admitted to the neonatal intensive care unit of our hospital and were diagnosed with UTI between January 2016 and December 2017 were

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... ted retrospectively. Results: Fifty-two percent (n=14) of the patients included in the study were female and 48% (n=13) were male. The mean gestational age was 34 weeks and mean birth weight was 2330 grams. The most common symptoms at the time of diagnosis were feeding intolerance (41%), fever (33%), and apnea (22%). Urine samples were collected from 26 patients via urethral catheter and from 1 patient by suprapubic aspiration. Urinary tract infection developed at a mean of 35 days postnatally. The most commonly isolated agent was Klebsiella pneumonia (n=17, 63%), followed by Escherichia coli, Enterobacter aerogenes, Enterococcus faecalis, and Serratia fonticola. Twenty-one patients (78%) with negative blood cultures were diagnosed with isolated UTI. Two patients were diagnosed with meningitis due to Klebsiella pneumoniae growth in cerebrospinal fluid culture. Urinary anomaly was detected in two patients. There was no recurrence of urinary infection during the follow-up. Conclusion: UTIs are common among preterm infants in the neonatal intensive care unit. Urine culture should be performed immediately in the presence of clinical symptoms or if late neonatal sepsis is suspected.