MONDAY, May 7 (HealthDay News) -- Women who require hospital admission for nephrolithiasis during pregnancy may have a nearly double risk of preterm delivery, according to study findings published in the May issue of Obstetrics & Gynecology.
Mia A. Swartz, M.D., of the University of Washington School of Medicine in Seattle, and colleagues compared pregnancy outcomes in 2,239 women who were admitted for nephrolithiasis with those of randomly selected women without nephrolithiasis.
The researchers found that preterm delivery was significantly more common in women admitted for nephrolithiasis than in those without kidney stones (adjusted odds ratio, 1.8). But they found that there were no group differences in the rates of premature rupture of membranes at term or before 37 weeks of gestation, low birth weight and infant death. They also found that women who underwent one or more procedures for kidney stones during prenatal hospitalization did not have an increased risk of preterm delivery.
"These results should allow for more informed counseling of these women and may prompt urologists to more aggressively treat small, asymptomatic stones in women during their reproductive years," the authors conclude.
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