Study of Oral Glucose Tolerance test (OGTT) in Pregnant Women and Fetal Outcome

Of the 8,065 women who attended the antenatal clinic (ANC) at Ramathibodo Hospital during 18 months period, 583 cases (7.23%) meet one or more of the criteria for GTT. Only 529 cases were completely followed up and analysed. One hundred and thirty eight cases (26.28%) showed abnormal curve while 391 cases (73.72%) were normal. Gestational diabetic mothers were advised to take low carbohydrate, high protein diet and their pregnancies were followed up closely and allowed to have spontaneous labor and deliveries. In cases with history of previous unexplained perinatal loss or who showed signs of fetal jeopardy or when the cervix was favorable, the pregnancies were terminated at 38 — 40 weeks. The perinatal mortality in gestational diabetes is 2.19% which is not statistically different from 1.7% of the overall patients of this hospital at the same period of time. It is felt from this study that in. gestational diabetes, if pregnancies are followed up closely with careful monitoring of the fetal status during pregnancies and labor, the outcome should improve and be the same as in nondiabetic mothers.