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How should we differentiate hypoglycaemia in non-diabetic patients?

  • Michele R. Modestino EMAIL logo , Olimpia Iacono , Laura Ferrentino , Anna Lombardi ORCID logo , Umberto De Fortuna , Rita Verdoliva , Mariarosaria De Luca and Vincenzo Guardasole
Published/Copyright: April 16, 2024

Abstract

Hypoglycaemic syndromes are rare in apparently healthy individuals and their diagnosis can be a difficult challenge for clinicians as there are no shared guidelines that suggest how to approach patients with a suspect hypoglycaemic disorder. Since hypoglycaemia symptoms are common and nonspecific, it’s necessary to document the Whipple Triad (signs and/or symptoms compatible with hypoglycaemia; relief of symptoms following glucose administration; low plasma glucose levels) before starting any procedure. Once the triad is documented, a meticulous anamnesis and laboratory tests (blood glucose, insulin, proinsulin, C-peptide, β-hydroxybutyrate and anti-insulin antibodies) should be performed. Results can guide the physician towards further specific tests, concerning the suspected disease. In this review, we consider all current causes of hypoglycaemia, including rare diseases such as nesidioblastosis and Hirata’s syndrome, describe appropriate tests for diagnosis and suggest strategies to differentiate hypoglycaemia aetiology.


Corresponding author: Michele R. Modestino, Dipartimento di sicenze mediche e traslazionali, AOU Federico II, Naples, Italy, E-mail:
Michele R. Modestino and Olimpia Iacono contributed equally to this work.
  1. Research ethics: The local Institutional Review Board deemed the study exempt from review.

  2. Informed consent: Informed consent was obtained from all individuals included in this study.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Competing interests: Authors state no conflict of interest.

  5. Research funding: None declared.

  6. Data Availability: Not applicable.

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Received: 2024-03-02
Accepted: 2024-03-10
Published Online: 2024-04-16

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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