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Evaluation of a standardized hyperglucidic breakfast test in postprandial reactive hypoglycaemia
1Service d'Exploration Physiologique des Hormones et des Métabolismes, Hôpital Lapeyronie, Montpellier, France.
Diabetologia
|April 1, 1995
Summary
A new hyperglucidic breakfast test effectively identifies reactive hypoglycaemia, unlike traditional tests. This simple diagnostic tool mimics French eating habits, aiding in the diagnosis of postprandial reactive hypoglycaemia.
Area of Science:
- Endocrinology
- Metabolic Disorders
- Clinical Diagnostics
Background:
- The oral glucose tolerance test (OGTT) lacks specificity for diagnosing postprandial reactive hypoglycaemia.
- Mixed meal tests are also unreliable, failing to induce hypoglycaemia in symptomatic individuals.
Purpose of the Study:
- To investigate the frequency of hypoglycaemia after a standardized hyperglucidic breakfast test.
- To evaluate the diagnostic utility of a hyperglucidic breakfast test for postprandial reactive hypoglycaemia.
Main Methods:
- A standardized hyperglucidic breakfast test was administered to three groups: control subjects (n=43), suspected postprandial reactive hypoglycaemia patients (n=38), and asymptomatic subjects (n=1193).
- Blood glucose levels were monitored to determine the nadir and frequency of hypoglycaemia.
Main Results:
- Subjects with suspected reactive hypoglycaemia exhibited a significantly lower mean blood glucose nadir (3.48 mmol/l) compared to controls (4.83 mmol/l).
- Hypoglycaemia (blood glucose < 3.3 mmol/l) occurred in 47.3% of suspected patients, significantly more often than in controls (2.2%) and asymptomatic subjects (1%).
Conclusions:
- The hyperglucidic breakfast test effectively detects a tendency towards hypoglycaemia after a meal.
- This test, mimicking typical French dietary habits, offers a simple and effective alternative to ambulatory glucose sampling for diagnosing postprandial reactive hypoglycaemia.