Treatment of urinary tract infections during pregnancy.

Urinary tract infections complicate 7-10% of pregnancies. Early detection and treatment of bacteriuria prevents most cases of pyelonephritis and its associated maternal and neonatal morbidity. The high risk for recurrence of bacteriuria and pyelonephritis mandate close monitoring of previously infected women and may require chronic suppressive therapy through the remainder of pregnancy. Acute cystitis is a distinct syndrome with a low recurrence rate and rarely associated with pyelonephritis.