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There are well known risks to the patient and the baby after surgery for morbid obesity, but it is important to note that there is a large body of data that clearly show that pregnancy in the obese woman is a very high risk situation even in the absence of surgical procedures for obesity. Obesity is one of the most common nutritional problems complicating pregnancy in developed countries. Obesity before pregnancy is associated with an increased risk of several adverse outcomes of pregnancy. A recent study in the New England Journal of Medicine showed that higher maternal weight before pregnancy increased the risk of fetal death. In a recent study by Wittgrove et al (Pregnancy Following Gastric Bypass for Morbid Obesity, Wittgrove et. al., Obesity Surgery, 8, 1998, 461-464) the number of pregnancies and rate of complications during those pregnancies in their post-bariatric surgical patients were evaluated. With over a 95% follow-up rate on the patients identified as having been pregnant following surgery, they found less risk of gestational diabetes, macrosomia, and cesarean section in patients after gastric bypass than in patients with obesity prior to gastric bypass. They concluded that since the patients had an operation that restricts their food intake, some basic precautions should be taken when they become pregnant. The post-surgical group had fewer pregnancy-related complications than did an internally controlled group that were morbidly obese during their previous pregnancies. The Complications of Pregnancy in Obese Women
The Complications of Pregnancy after Gastric Bypass
Advice to the patient considering pregnancy after gastric bypass surgery
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