Evaluation of urinary tract infections in neonatal indirect hyperbilirubinemia

We have evaluated urinary tract infections (UTI) in neonatal indirect hyperbilirubinemia. Urine culture is not routinely requested in patients with indirect hyperbilirubinemia. However, debates continue about the frequency and investigation of UTI in neonatal indirect hyperbilirubinemia patients. The aim of this study was to determine the prevalence of UTI in neonates admitted to the hospital due to pathological indirect hyperbilirubinemia and whether a routine urine culture test is necessary in patients.

In this retrospective study, we analyzed data from 1390 patients hospitalized to the Neonatal Unit due to pathological indirect hyperbilirubinemia. One hundred and eleven of these patients with detected bacterial agents in the urine cultures were evaluated. The type of the pathogens grown in urine culture, the number of colonies, and the antibiotic resistance status were evaluated.

Among 1390 patients screened, 111 (8%) were found to have UTI, 68 of whom (61.3%) were male. Out of the microorganisms that grew, Escherichia coli was the dominant microorganism with 36.1%, which was followed by Klebsiella species (23.4%), and Enterococcus species (18%), respectively.

The prevalence of UTI is high in the neonatal period as in all childhood and especially in patients admitted to the Neonatal Unit due to indirect hyperbilirubinemia. Escherichia coli and Klebsiella species are the most common bacterial agents that grow. Missing the diagnosis of urinary tract infection in neonates may cause renal problems. Therefore, we recommend requesting a urine culture in routine examinations of neonates who are diagnosed with pathological indirect hyperbilirubinemia and admitted to the hospital due to the need for phototherapy.