Objective:To explore the effect of dietary assessment WeChat platform on nutrition intervention in obese pregnant women. Methods:136 pregnant women who were obese before pregnancy during the perinatal nutrition management in our hospital from May 2016 to October 2017 were included in the obesity group, and then randomly divided into two groups, single group and combined group. A single group used the 24-hour review method to conduct a dietary survey to evaluate the current nutritional intake status of pregnant women, and the results were compared with the recommended prenatal nutrient intake recommended by the Chinese nutrition society. A personalized nutrition guidance program was developed by using perinatal nutrition management system software. On the basis of giving the same guidance to a single group, the combined group could simultaneously obtain the actual daily intake of major nutrients through the dietary assessment WeChat platform, and compare with the recommended amount to timely adjust the diet. 130 pregnant women who had normal weight before delivery and normal weight gain during pregnancy were taken as the normal group. The pregnancy outcomes of three groups of pregnant women were analyzed. Results:The incidence of hypertensive disorders of pregnancy, gestational diabetes mellitus and macrosomia in obese pregnant women was 27.94%, 25.74%, 22.79% and 69.12% respectively. The corresponding pregnancy outcomes were 3.85%, 6.15%, 4.62% and 33.08% in normal pregnant women. The risk of hypertensive disorders of pregnancy, gestational diabetes mellitus, macrosomia and cesarean section was significantly increased in obese group, and the difference was statistically significant(P<0.01). There was no significant difference in the incidence of hypertension, gestational diabetes mellitus and cesarean section rate in obese group. The incidence of macrosomia was 30.89% in the single group and 14.71% in the combined group. The incidence of macrosomia in combined group was significantly reduced, and the difference was statistically significant(P<0.01). Conclusion:Compared with normal weight pregnant women, the incidence of obstetric complications are significantly increased in obese pregnant women. For obese pregnant women, the combined application of dietary assessment WeChat platform on the basis of routine individualized nutrition guidance can effectively reduce the incidence rate of macrosomia.
 LU G C,ROUSE D J,DUBARD M,et al.The effect of the increasing prevalence of maternal obesity on perinatal morbidity[J].Am J Obstet Gynecol,2001,185(4):845-849.
 JAYATI K B,CLARA M J,DEBASHIS B,et al.Obesity and its outcomes among pregnant South African women[J].Int J Gynaecol Obstet,2010,110(2):101-104.
 CALLAWAY L K,PRINS J B,CHANG A M,et al.The prevalence and impact of overweight and obesity in an Australian obstetric population[J].Med J Aust,2006,184(2):56-59.
 CRANE J M,MURPHY P,BURRAGE L,et a1.Maternal and perinatal outcomes of extreme obesity in pregnancy[J].J Obstet Gynaecol Can,2013,35(7):606-611.
 STAMILIO D M,SCIFRES C M,CHRISTINA M,et al.Extreme obesity and postcesarean aternal complications[J].Obstet Gynecol,2014,124(2 Pt 1):227-232.
 McKIBBEN R A,PITTS S I,SUAREZ-CUERVO C,et al.Practices to reduce surgical site infections among women undergoing cesarean section:a review[J].Infect Control Hosp Epidemio,2015,36(8):915-921.
 QUINLIVAN J A,LAM L T,FISHER J,et al.A randomised trial of a four-step multidisciplinary approach to the antenatal care of obese pregnant women[J].Aust N Z J Obstet Gynaecol,2011,51(2):141-146.
 THANGARATINAM S,JOLLY K.Obesity in pregnancy:a review of reviews on the effectiveness of interventions[J].BJOG,2010,117(11):1309-1312.
 POSTON L,BELL R,CROKER H,et al.Effect of a behavioural intervention in obese pregnant women(the UPBEAT study):a multicentre,randomised controlled trial[J].Lancet Diabetes Endocrinol,2015,3(10):767-777.
 BARAKAT R,CORDERO Y,COTERON J,et a1.Exercise during pregnancy improves maternal glucose screen at 24-28 weeks:a randomised controlled trial[J].Br J Sports Med,2012,46(9):656-661.
 WANG C,WEI Y,ZHANG X,et al.Effect of regular exercise commenced in early pregnancy on the incidence of gestational diabetes mellitus in overweight and obese pregnant women:a randomized controlled trial[J].Diabetes Care,2016,39(10):e163-164.
 ARTAL R.Exercise in pregnancy:guidelines[J].Clin Obstet Gynecol,2016,59(3):639-644.