[Infertility: A key time to follow a medical nutritional management. Our experience on 78 patients]
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OBJECTIVES: The prevalence of female obesity is increasing. Obesity leads to increased infertility and difficulties in the management of Assisted Reproductive Technology (ART). A specialized nutritional consultation was created in 2008 at University Hospital of Lille, to support infertile obese and overweight patients and to achieve a BMI below 35kg/m(2) before pregnancy. The aim of this retrospective study was to evaluate our practice of nutritional support on weight and pregnancy rate. METHODS: Seventy-eight obese or overweight patients, followed in nutrition and ART for at least two years, were compared to a control group of 119 normal weight patients. The nutritional strategy was mainly based on lifestyle changes, to establish healthier food and higher physical activity. RESULTS: The mean initial BMI was 37.5kg/m(2) vs 35.6kg/m(2) after nutritional support (significant weight loss, [P<0.001]). Obese or overweight patients had more frequently metabolic syndrome (P<0.01). The chances of pregnancy, after weight loss, were similar to the control group both in IUI and IVF/ICSI. However, gonadotropin doses were increased in the obese and overweight group (P=0.007). The hypocaloric diet was the most effective nutritional strategy to achieve a weight loss greater than 5% of initial weight (P=0.017). Regular physical activity practice allowed also more frequently to achieve this goal (P=0.074). Even after weight loss, a significant number of gestational diabetes (25% of pregnancies in our population) occurred in the obese or overweight group. CONCLUSION: This nutritional consultation promotes weight loss in infertile obese or overweight patients. The maternity desire is a strong motivational lever to weight loss, which leads to satisfying pregnancy rate.
