Clinical practice
LIU Yingnuo, LIU Xuejing, JIANG Hongqing
Objective: To explore the influence of abnormal indicators of the oral glucose tolerance test (OGTT) during pregnancy and weight gain during pregnancy on pregnancy. Method: A total of 469 pregnant women with gestational diabetes mellitus (GDM) who were registered for prenatal examination and delivered at Haidian District Maternal and Child Health Care Hospital from January 2024 to June 2024 were selected as the research subjects. The clinical data of 469 pregnant women were retrospectively analyzed and grouped according to the blood glucose levels at each time point of OGTT: One abnormal blood glucose is classified as GroupⅠ(abnormal fasting blood glucose is GroupⅠa, abnormal blood glucose 1 hour after taking sugar is GroupⅠb, and abnormal blood glucose 2 hours after taking sugar is GroupⅠc), and two abnormal blood glucose items are classified as GroupⅡ(abnormal fasting blood glucose and abnormal blood glucose 1 hour or 2 hours after taking sugar are Group Ⅱa, and abnormal blood glucose 1 hour after taking sugar and abnormal blood glucose 2 hours after taking sugar are Group Ⅱb). Three abnormal blood glucose levels are classified as Group Ⅲ. In addition, based on the pre-pregnancy body mass index (BMI), they were divided into the low weight group, the normal weight group, the overweight group and the obese group. Then, according to the weight gain of pregnant women in each group during pregnancy, the group with insufficient weight gain was classified as Group A, the group with appropriate weight gain as group B, and the group with excessive weight gain as group C. The delivery methods, perinatal complications, neonatal weight, neonatal hypoglycemia and the rate of neonatal referral to the pediatric department of each group were compared respectively. Result: There were statistically significant differences in BMI among groupsⅠ, Ⅱ, and Ⅲ, as well as within GroupⅠ(P<0.05). There were statistically significant differences in the incidences of gestational hypertension, intrauterine infection and GDM A2 among groupsⅠ,Ⅱand Ⅲ(P<0.05). The comparison of the incidences of gestational hypertension and GDM A2 among the three groups of parturients, namelyⅠa,Ⅰb andⅠc, showed statistically significant differences (P<0.05). The comparison of the incidences of gestational hypertension, uterine cavity infection and GDM A2 within groupⅡalso showed statistically significant differences (P<0.05). There was a statistically significant difference in the incidence of neonatal hypoglycemia and macrosomia among groupsⅠ, Ⅱand Ⅲ (P<0.05). The comparison of the incidence of neonatal hypoglycemia within GroupⅠand GroupⅡshowed statistically significant differences (P<0.05). There were statistically significant differences in the incidences of gestational hypertension, premature rupture of membranes, GDM A2, preterm birth and macrosomia among the three groups of parturients A, B and C (P<0.05). Conclusion: The number of abnormal OGTT items and weight gain during pregnancy in pregnant women with gestational diabetes mellitus (GDM) are related to gestational complications and adverse pregnancy outcomes. Especially for pregnant women with one or more abnormal OGTT items due to elevated fasting blood glucose, management should be strengthened and active intervention should be carried out to control reasonable weight gain and reduce gestational complications and adverse outcomes.