What is the recommended duration of antimicrobial therapy for UTIs in pregnant women?

The recommended duration of antimicrobial therapy for urinary tract infections (UTIs) in pregnant women is typically 7 days. This duration is considered effective for ensuring adequate treatment of the infection while minimizing the risk of recurrence. In pregnant women, UTIs can lead to complications such as pyelonephritis, which can have serious consequences for both the mother and the developing fetus. A 7-day course provides a balance that is generally supported by clinical guidelines to ensure that the infection is fully eradicated and to reduce the likelihood of antimicrobial resistance.

Other shorter durations, such as 3 or 5 days, may not always provide sufficient therapy in this population, as the risk factors associated with pregnancy can alter the typical course of UTIs. While a longer duration of 10 days may seem thorough, it is often unnecessary for uncomplicated cystitis in pregnant women, and extending therapy can increase the risk of side effects and complications without additional benefit. Thus, a 7-day treatment plan is the most appropriate recommendation for managing UTIs effectively in pregnant patients.