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PALM DESERT, CALIF. -- Pregnancy outcomes after bariatric surgery appear to be largely positive, although such patients should be closely monitored for nutritional deficiencies, Richard N. Wissler, M.D., concluded after systematically reviewing existing literature on the subject.
Dr. Wissler's metaanalysis of 21 articles included data on 846 pregnant women aged 19-49, with 1,105 pregnancies following currently performed bariatric procedures such as gastroplasty, gastric banding, gastric bypass, and biliopancreatic diversion.
He presented his findings at the annual meeting of the Society for Obstetric Anesthesia and Perinatology.
The cesarean section rate following bariatric surgery was 27% and did not differ from the cesarean rate in patients preoperatively.
However, studies comparing patients' health parameters before and after bariatric surgery showed significant declines in obesity-related conditions that could pose heightened risks during pregnancy, said Dr. Wissler of the department of anesthesiology at the University of Rochester (N.Y).
For example, 7.5% of subjects had diabetes after surgery, compared with 27% of subjects before surgery.
Postsurgical hypertension rates were 6%, compared with 12% before surgery.