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Hyperinsulinemic hypoglycemia in adults.

F John Service1

  • 1Division of Endocrinology, Metabolism and Nutrition, Mayo Clinic Rochester, 200 First Street SW, Rochester, MN 55905, USA.

Annales D'Endocrinologie
|May 4, 2004
PubMed
Summary

Diagnosing hypoglycemia requires careful assessment for underlying causes and specific diagnostic criteria. This study outlines key markers for identifying insulin-mediated hypoglycemia, aiding accurate diagnosis in complex cases.

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Area of Science:

  • Endocrinology
  • Clinical Diagnostics

Background:

  • Hypoglycemia diagnosis demands high suspicion and assessment for drugs or illness.
  • Diagnosing neuroglycopenia in healthy individuals presents significant challenges.

Purpose of the Study:

  • To establish clear diagnostic criteria for insulin-mediated hypoglycemia.
  • To guide the methodical evaluation of patients with suspected hypoglycemic disorders.

Main Methods:

  • Utilized immunochemiluminometric assay (ICMA) for plasma insulin, C-peptide, and proinsulin levels.
  • Measured beta-hydroxybutyrate and plasma glucose response to intravenous glucagon during hypoglycemia.
  • Included screening for sulfonylureas, meglitinides, and insulin antibodies.

Main Results:

  • Defined specific thresholds for plasma insulin (>or=18 pmol/L), C-peptide (>or=200 pmol/L), and proinsulin (>or=5 pmol/L) via ICMA.
  • Established criteria for beta-hydroxybutyrate levels (

Conclusions:

  • These criteria aid in confirming insulin mediation as a cause of hypoglycemia.
  • Comprehensive testing is crucial for accurate diagnosis and management of hypoglycemic disorders.

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