[The level of glycosylated hemoglobin A1c in the erythrocytes of patients with diabetic angio- and polyneuropathies].

The level of glycosylated Hb A1c in erythrocytes of 173 patients with types I and II diabetes mellitus was analyzed with regard to compensation of disease, the presence and a degree of expression of diabetic angiopathies. An elevated level of Hb A1c in decompensation of diabetes decreased after achieving normoglycemia and aglycemia without reaching the normal level. The development of severe diabetic angiopathies, especially nephro- and retinopathies was accompanied by a decrease in the level of Hb A1c in decompensation up to values which could be observed during compensation of diabetes mellitus. A conclusion is that the level of Hb A1c in erythrocytes of patients with diabetes mellitus as an indicator of carbohydrate metabolic compensation can be used only in persons with unaffected vessels or at the early stages of the development of vascular affection.