GI and Liver Disease During Pregnancy: A Practical Approach

Kim L Isaacs, MD PhD; Millie D Long, MD MPH

Chapter 3: Gastric Bypass And Pregnancy (continued)

D. Wayne Overby, MD

One-third of Americans older than 20 years are obese. Obesity is defined as having a Body Mass Index (BMI, calculated as weight in kilograms divided by height in square meters) greater than 30 kg/m2. The prevalence of obesity is even higher among women, at 35.5%.1 Weight loss surgery is the most effective treatment for morbid obesity (BMI >40 or >35 with an obesity-related comorbidity) and for obesity-related health problems.2-4 The number of weight loss procedures performed per year in the United States has grown significantly over the past 20…