Pregnancy After Laparoscopic Sleeve Gastrectomy (LSG): The Effect of Gestational Weight Gain (GWG) On Pregnancy and Perinatal Outcomes

Abstract

Introduction: We aimed to evaluate the effect of gestational weight gain (GWG) according to Institute of Medicine (IOM) recommendation after laparoscopic sleeve gastrectomy (LSG) on maternal and fetal outcomes.Materials and methods: A retrospective, observational study on the medical charts of pregnant women who had previously undergone LSG between 2012 and 2020. According to IOM, GWG was grouped as insufficient, appropriate, and excessive.Results: 82 pregnancies were included in this study. GWG was appropriate in 19 of the pregnancies (23%) and was insufficient in 18 (22%) and excessive in 45 (55%) of the cases. The time from operation till conception of excessive group is significantly longer than insufficient and appropriate group (p1:0.000; p2:0.029; p<0.05). There was no statistically significant difference between the groups regarding birthweight, gestational age, cesarean deliveries (CD), preterm birth, whether their child was small or large for their gestational age. There was no difference between mean hemoglobin, anemia, low ferritin level and ferritin level at early pregnancy and predelivery between groups (p<0.05). There was no significant correlation between the time from operation till conception, birthweight and gestational age. There was no significant correlation between body mass index (BMI) at conception, birthweight and gestational age. There was no significant correlation between early and predelivery ferritin and hemoglobin and birthweight and gestational age. There was no correlation between mean GWG and mean BMI at conception between birthweight in either study group. Conclusion: The gestational weight gain (GWG) did not impact maternal and neonatal outcomes.