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Idiopathic Pathological Ketotic Hypoglycemia: Finding the Needle in a Haystack.

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Summary

Ketotic hypoglycemia (KH) is common in young children due to fasting. This review differentiates physiological KH from rare pathological forms, aiding diagnosis and management.

Keywords:
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Area of Science:

  • Pediatrics
  • Endocrinology
  • Metabolic Disorders

Background:

  • Ketotic hypoglycemia (KH) is a frequent cause of hypoglycemia in young children presenting to emergency departments.
  • Hypoglycemia and ketosis are normal physiological responses to fasting in children.
  • Recent genetic advances reveal rare disorders underlying impaired fasting adaptation, broadening the definition of KH.

Purpose of the Study:

  • To differentiate between physiological and pathological ketotic hypoglycemia.
  • To provide an approach for diagnosing rare disorders causing pathological KH.
  • To offer management recommendations for children with KH.

Main Methods:

  • Review of current evidence on ketotic hypoglycemia.
  • Discussion of physiological versus pathological presentations.
  • Integration of molecular genetic findings.

Main Results:

  • KH encompasses a spectrum from normal fasting variations to rare genetic disorders.
  • Idiopathic pathological KH is a diagnosis of exclusion for unexplained limited fasting tolerance.
  • Distinguishing between physiological and pathological KH is crucial for appropriate care.

Conclusions:

  • A clear approach is needed to distinguish physiological KH from rare pathological forms.
  • Early identification of pathological KH through genetic testing is vital.
  • Tailored management strategies are essential for affected children.