• Obstetrics and gynecology · Mar 2012

    Pregnancy outcomes in women after bariatric surgery compared with obese and morbidly obese controls.

    • Jennifer Lesko and Alan Peaceman.
    • Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA. jenniferlesko@gmail.com
    • Obstet Gynecol. 2012 Mar 1;119(3):547-54.

    ObjectiveTo estimate the rates of pregnancy outcomes of women after bariatric surgery relative to women in a control groups.MethodsThe study was a chart review. Presurgery and prepregnancy body mass index (BMI) were calculated for 70 patients who had undergone bariatric surgery and who had a subsequent singleton pregnancy. Four control patients were then randomly selected for each case patient: two with a BMI within 6 points of the average presurgery BMI and two with a BMI within 6 points of the average prepregnancy BMI. The primary outcomes were the rates of gestational diabetes or hypertensive disorders of pregnancy.ResultsThere was a significant decrease in rate of gestational diabetes in bariatric surgery patients (0.0%) as compared with both control groups (morbidly obese 16.4%, obese 9.3%; corrected odds ratio (OR)morbidly obese 0.04, with a 95% confidence interval [CI] 0.00-0.62, P<.01; corrected OR obese 0.07, CI 0.00-1.20, P=.01). There was no significant difference in the rate of hypertensive disorders of pregnancy with bariatric surgery. Additionally, neonates were significantly more likely to be small for gestational age (SGA) in the bariatric surgery group (17.4%) than the morbidly obese group (5.0%) (OR 3.94, CI 1.47-10.53, P<.01).ConclusionBariatric surgery is associated with reduction in gestational diabetes in a subsequent pregnancy, but possibly at the expense of an increase in SGA neonates.

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