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  • Title: Gestational diabetes mellitus. Correlations between the phenotypic and genotypic characteristics of the mother and abnormal glucose tolerance during the first year postpartum.
    Author: Metzger BE, Bybee DE, Freinkel N, Phelps RL, Radvany RM, Vaisrub N.
    Journal: Diabetes; 1985 Jun; 34 Suppl 2():111-5. PubMed ID: 3888736.
    Abstract:
    We evaluated glucose tolerance during the first year postpartum in 113 women with gestational diabetes mellitus (GDM) diagnosed according to the criteria of the First International Workshop-Conference on GDM and the National Diabetes Data Group. The high incidence of abnormal postpartum glucose tolerance (38% "diabetes mellitus" plus 19% "impaired glucose tolerance") was correlated with certain of the heterogeneous characteristics of the population at the time of antepartum diagnosis. Virtually all women with antepartum fasting plasma glucose (FPG) greater than or equal to 130 mg/dl (GDM class B1) remained abnormal postpartum (21/22 [95%]), which suggests that this group may include women with preexisting glucose intolerance unrecognized before pregnancy. In the remainder, those with FPG greater than or equal to 105-129 mg/dl (GDM class A2) were more likely to be abnormal postpartum than those with FPG less than 105 mg/dl (GDM class A1). Within the A1 and A2 groups, increasing maternal age, relative insulinopenia, and hyperglycemia at 2 h during antepartum OGTT were also associated with a greater likelihood of abnormal glucose tolerance postpartum. The presence of HLA-DR3 and/or -DR4 antigens was not predictive of the status of glucose tolerance during the first year postpartum, although the increased frequency of cytoplasmic islet cell antibodies in A2 and B1 subjects was associated with a high incidence of abnormal postpartum glucoregulation. The high incidence of abnormal postpartum glucose tolerance in all GDM classes makes a compelling case for careful, early, and continuing follow-up of all women with a diagnosis of GDM.(ABSTRACT TRUNCATED AT 250 WORDS)
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