Obesity and pregnancy: implications and management strategies for providers

Obesity in pregnancy (pregravid body mass > or =30) has been linked to several adverse pregnancy outcomes, including spontaneous abortion, preeclampsia, gestational diabetes, fetal macrosomia, cesarean delivery, and wound complications post-cesarean section. Intrapartum and postpartum management of obese gravidas requires multidisciplinary consultations between obstetricians, anesthesiologists, nurses, and pediatricians in order to improve the pregnancy outcomes of the mother and neonate. The American College of Obstetricians and Gynecologists currently supports risk-reducing strategies for obese pregnant patients, including limiting weight gain to 15 lb (standardized by the Institute of Medicine). Interventions to reduce gestational weight gain may be important modifiable risk factors for maternal and fetal perinatal complications. Interventions have targeted modifications of diet and exercise with educational methods such as radio broadcasts, pamphlets, and counseling. Interventions have also focused on motivational methods, such as individual and group classes, and have been implemented both before conception and immediately after birth. Effective interventions appear to be individualized in approach, but there is a lack of data to support any specific model. Prospective interventional studies are needed to demonstrate the benefits of weight limitation on pregnancy outcomes.