부산대학교 도서관

Objective: We aimed to demonstrate the relationship between urine analysis and culture of patients with DJ stents with significant urinary infection and thus prevent unnecessary antibiotic use and over-treatment. Material and Methods: The data of patients who had DJS insertion between 2016 and 2019 were investigated retrospectively. Results: A total of 152 patients were included in the study. The mean age of the patients was 48.9±14.9 years. Indications for DJS insertion were as follow: endoscopic ureter and kidney stone treatment was percutaneous nephrolithotomy in 108 (71.2%) patients, percutaneous nephrolithotomy in 20 (13.2%) patients and renal transplantation in 6 patients. The urine analysis of the patients revealed nitrite (+) in 8 patients and leukocyte esterase (+) in 117 patients (77%). In 20 patients (13.2%), various microorganism growths were observed in urine culture. 75% of patients with nitrite were positive in urine culture. No significant difference was found between urine cultures of patients with and without comorbidity (p = 0.132). In multivariate regression analysis, age, gender, catheter stay duration, and indications for DJS were not found top predict urinary tract infection (p> 0.05 for all variables). Conclusion: In patients with ureteral stent, nitrite positivity predicts urinary tract infection at a high rate and necessitate urine culture followed by appropriate antibiotic treatment.