Incidence and risk factors of urinary tract infection after ureteroscopy / 中国感染控制杂志

ABSTRACT

Objective To evaluate the incidence and risk factors of urinary tract infection(UTI)following uret-eroscopy.Methods Patients undergoing ureteroscopy examination or ureteroscopic lithotripsy in a hospital between 2002 and 2011 were analyzed retrospectively,clinical data of patients were collected and analyzed,including age, sex,history,complication ,urine routine test,urine culture,blood routine test,urethral catheterization,ureteral stent placing and antimicrobial use.Results Incidence of UTI following ureteroscopy was 3.77% (20/531),UTI fol-lowing ureteroscopy examination was higher than ureteroscopic lithotripsy (5.84% [9/154]vs 2.92% [11/377]). Pyelonephritis was the main infection type(n= 15 ),the main pathogen was Escherichia coli (n= 6 ),there was no statistical difference in UTI among patients receiving different types of antimicrobial prophylaxis (P= 0.185 ). Patients with bacteriuria,hydronephrosis,urethral catheterization,without ureteral stent placing,and without re-ceiving antimicrobial prophylaxis had higher incidence of URI(all P<0.05).Conclusion Bacteriuria,hydronephro-sis,urethral catheterization,without postoperative ureteral stent placing,ureteroscopy examination,and without receiving antimicrobial prophylaxis are risk factors of UTI following ureteroscopy.