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Fructosamine or glycated haemoglobin as a measure of diabetic control?

J Allgrove1, B L Cockrill

  • 1East Birmingham Hospital.

Archives of Disease in Childhood
|April 1, 1988
PubMed

Insights

Glycated haemoglobin A1c (HbA1c) and fructosamine are useful for monitoring pediatric diabetes. Fructosamine may serve as a valuable short-term indicator of disease progression or improvement.

Area of Science:

  • Clinical Chemistry
  • Pediatric Endocrinology
  • Diabetes Mellitus Management

Background:

  • Glycated haemoglobin A1c (HbA1c) and fructosamine are key biomarkers for diabetes monitoring.
  • Establishing pediatric-specific reference ranges for these markers is crucial for accurate assessment.
  • Understanding the correlation and utility of these markers in children is essential for effective diabetes care.

Purpose of the Study:

  • To establish normal ranges for HbA1c and fructosamine in children.
  • To investigate the correlation between HbA1c and fructosamine in diabetic children.
  • To evaluate the utility of fructosamine as a short-term indicator of diabetes control in children.

Main Methods:

  • Measurement of HbA1c, fructosamine, and total serum proteins in 30 normal and 61 diabetic children.
  • Analysis of correlation between HbA1c and fructosamine.
  • Longitudinal monitoring of HbA1c and fructosamine levels in a small cohort of patients with changing diabetes status.

Main Results:

  • Normal ranges for pediatric HbA1c (4.7-8.8%) and fructosamine (0.98-1.88 mmol/l) were similar to adult ranges, with no significant age-related differences.
  • A strong correlation between HbA1c and fructosamine was observed in diabetic children, but this diminished within normal ranges.
  • Fructosamine decay half-life was 16.5 days, compared to 28.7 days for HbA1c. Fructosamine levels reflected short-term glycemic changes, indicating improvement or deterioration.
  • Adjustment for total serum proteins did not alter fructosamine results.

Conclusions:

  • Fructosamine is not a direct substitute for HbA1c but can be a useful adjunct for short-term diabetes monitoring in children.
  • Monitoring fructosamine can help assess if a patient's condition is worsening or improving.
  • Integrating fructosamine testing into routine diabetes assessment, alongside occasional HbA1c testing, may offer cost savings and retain the benefits of both assays.

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