[A glucose tolerance study in the 12 months postpartum in patients with gestational diabetes].
BACKGROUND: It has been reported that patients with gestational diabetes have a considerable long term risk of developing diabetes mellitus. METHOD: Glucose tolerance was studied in the 12 months following birth in 155 patients diagnosed by the authors as having gestational diabetes and followed during pregnancy. RESULTS: It was observed that in 48% of the patients alterations persisted (33% glucose intolerance and 15% diabetes mellitus). Glucose tolerance during gestation and the perinatal results were retrospectively analyzed with a relation with the postpartum reclassification being observed. CONCLUSIONS: It was estimated that the percentage of alterations in glucose tolerance persisting postpartum is extremely high, suggesting the need for this test with a double objective: the reclassification of gestational diabetes and the early detection of glucose intolerance and diabetes mellitus.