PARIS—Antibiotic prophylaxis and risk-based stratification are unnecessary for most patients undergoing outpatient flexible cystoscopy, researchers reported at the 27th Annual Congress of the European Association of Urology.

In a study comparing 359 outpatient flexible cystoscopy patients who received prophylactic antibiotics (group A) and 243 who did not (group B), Deepak Batura, MD, and colleagues at North West London Hospitals NHS Trust in London observed no significant difference between the groups in the occurrence of symptomatic urinary tract infections (UTI). The study excluded patients with catheters, a UTI in the preceding 15 days, or cystoscopy with manipulation.

Among patients with symptomatic UTI, urine cultures were positive in two patients (0.56%) in group A and one (0.41%) in group B.

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Symptomatic UTI is rare after outpatient flexible cystoscopy without manipulation among patients without catheters or recent UTI, the authors concluded.