Impact of fasting and postprandial glycemia on overall glycemic control in type 2 diabetes. Importance of postprandial glycemia to achieve target HbA1c levels

  • Woerle H
  • Neumann C
  • Zschau S
 et al. 
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Abstract

Objective: HbA1c values reflect overall glycemic exposure over the past 2-3 months and are determined by both fasting (FPG) and postprandial plasma glucose (PPG) levels. Cross-sectional studies suggest that attainment of HbA1c goals requires specific targeting of postprandial hyperglycemia. Research design and methods: We undertook a prospective intervention trial to assess the relative contribution of controlling FPG and PPG for achieving recommended HbA1c goals. One hundred and sixty-four patients (90 male and 74 female) with unsatisfactory glycemic control (HbA1c ≥7.5%) were enrolled in an individualized forced titration intensified treatment program. Results: After 3 months HbA1c levels decreased from 8.7 ± 0.1 to 6.5 ± 0.1% (p < 0.001); FPG decreased from 174 ± 4 to 117 ± 2 mg/dl (p < 0.001); PPG decreased from 224 ± 4 to 159 ± 3 mg/dl (p < 0.001) and daylong hyperglycemia (average of premeal, postprandial and bedtime plasma glucose excluding FPG) decreased from 199 ± 4 to 141 ± 2 mg/dl (p < 0.0001). Patients' weight remained unchanged (84.0 ± 1.4 kg versus 82.9 ± 1.5 kg, p = 0.36). No severe hypoglycemia occurred. Only 64% of patients achieving FPG targets of

Author-supplied keywords

  • Glycemic control
  • HbA1c
  • Postprandial hyperglycemia

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Authors

  • Hans J. Woerle

  • Christoph Neumann

  • Silvia Zschau

  • Stephanie Tenner

  • Andrea Irsigler

  • Joerg Schirra

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