[Glycosylated hemoglobin test in gestational abnormal glucose metabolism].

OBJECTIVE

To investigate the clinical significance of the determination of glycosylated hemoglobin (HbAlc) in gestational abnormal glucose metabolism.

METHODS

The level of fasting plasma glucose (FPG) and HbAlc in 540 normal gravida and 387 pregnant women with abnormal glucose metabolism was determined. Glucose challenge test (GCT) with 50 g glucose was done to those whose level of FPG was normal and 75 g glucose tolerance test (OGTT) was done to those whose GCT was abnormal. The levels of HbAlc of all subjects were assessed. And all subjects were divided into some groups according to the levels of HbA1c, to investigate the relationship between the complication and the levels of HbAlc.

RESULTS

The positive rate of HbAlc in abnormal glucose metabolism pregnant women was 20.9%. It was not sensitive if diagnosed only by this sign. Diagnosis by both FPG and this sign could solve this problem. The incidence of complication was increasing with the rise of HbA1c titre in the study group.

CONCLUSION

The determination of HbAlc is important in the screening, diagnosing and assessing the prognoses of the gestational abnormal glucose metabolism.