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Related Experiment Videos

Hypoglycaemic valleys: an under-recognised problem in type 2 diabetes?

Brian M Frier1

  • 1Department of Diabetes, Royal Infirmary of Edinburgh, Scotland, UK.

International Journal of Clinical Practice. Supplement
|August 9, 2002
PubMed
Summary
This summary is machine-generated.

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Hypoglycaemia (low blood sugar) is a concern in type 2 diabetes, especially with insulin therapy. Ageing and diabetes duration can increase risks, potentially leading to counterregulatory hormonal deficiencies.

Area of Science:

  • Endocrinology
  • Metabolic Disorders
  • Diabetes Management

Background:

  • Hypoglycaemia is a known complication of type 2 diabetes treatment, particularly with oral agents and insulin.
  • Ageing affects counterregulatory responses to low blood sugar, altering hormonal and symptomatic reactions.
  • Type 2 diabetes can involve subtle counterregulatory hormonal deficiencies and higher glycemic thresholds for these responses.

Purpose of the Study:

  • To review the occurrence and characteristics of hypoglycaemia in type 2 diabetes.
  • To examine the impact of ageing and diabetes progression on counterregulatory responses.
  • To assess the frequency of mild and severe hypoglycaemia in patients treated with oral agents and insulin.

Main Methods:

  • Literature review and analysis of existing data on hypoglycaemia in type 2 diabetes.

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  • Examination of counterregulatory hormonal and symptomatic responses to hypoglycaemia.
  • Comparison of hypoglycaemia incidence across different treatment modalities and patient demographics.

    • Main Results:

    • Mild hypoglycaemia is perceived as uncommon but may be underestimated, especially with sulfonylureas.
    • In insulin-treated type 2 diabetes, mild hypoglycaemia affects 30-40% annually and severe hypoglycaemia 0.5-2.3% in trials.
    • Hypoglycaemia frequency increases with insulin therapy duration, diabetes duration, and age.
    • Counterregulatory hormonal deficiencies and altered glycemic thresholds are observed, particularly with disease progression.

    Conclusions:

    • Hypoglycaemia, particularly mild forms, may be more frequent than perceived in type 2 diabetes.
    • Ageing and disease progression significantly influence hypoglycaemia risk and counterregulatory responses.
    • Careful monitoring and management are crucial, especially in patients with prolonged diabetes or insulin therapy.