Small benefit for low-dose antibiotics to prevent repeat symptomatic urinary tract infection in children

Small benefit for low-dose antibiotics to prevent repeat symptomatic urinary tract infection in children

Brian McAvoy
PEARLS No.
640
Clinical question

Compared with placebo/no treatment, how effective are long-term prophylac­tic antibiotics for preventing recurrence of urinary tract infection in children?

Bottom line

Long‐term antibiotics reduced the risk of repeat symptomatic UTI in children who had one or more previous UTIs, but the benefit was small. A single study reported event time periods and showed the greatest risk of repeat symptomatic infection occurred in the 3 to 6 months following the initial UTI. Nitrofurantoin appeared the most effective treatment but led to considerable adverse events.

Caveat

The data showed few adverse effects from the antibiotic treatment but demonstrated an increased risk of bacterial resistance to the treatment drug in subsequent infections.

Context

UTI is common in children. Due to acute illness caused by UTI and the risk of pyelonephritis‐induced permanent kidney damage, many children are given long‐term (several months to 2 years) an­tibiotics aimed at preventing recurrence.

Cochrane Systematic Review

Williams G et al. Long-term antibiotics for preventing urinary tract infections in children. Cochrane Reviews, 2019, Issue 4. Art. No.: CD001534. DOI: 10.1002/14651858. CD001534.pub4. This review contains 16 studies involving 2036 participants.