Related Experiment Video
Updated: Sep 26, 2026

Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test
Published on: November 13, 2016
Prolonged hyperinsulinemic hypoglycemia in a small for date preterm
1Division of Neonatology, Department of Pediatrics, Azienda Ospedaliera Careggi, University of Firenze, Firenze, Italy.
Insights
Prolonged hyperinsulinemic hypoglycemia in small-for-date preterm infants can be treated with glucose and diazoxide. This condition, a cause of infant hypoglycemia, may resolve spontaneously by two months of age.
Area of Science:
- Neonatology
- Pediatric Endocrinology
- Metabolic Disorders
Background:
- Hyperinsulinism is a significant cause of hypoglycemia in neonates.
- Forms include transient, prolonged, and persistent hyperinsulinemic hypoglycemia.
- Accurate diagnosis and treatment are crucial due to the risk of brain damage.
Observation:
- A case of prolonged hyperinsulinemic hypoglycemia in a small-for-date preterm infant is presented.
- Initial treatment involved high-dose glucose and glucocorticoids, followed by diazoxide.
- Hypoglycemia persisted for two months.
Findings:
- The infant's condition resolved spontaneously and completely at two months of age.
- This suggests a potential self-limiting course for some prolonged hyperinsulinemic hypoglycemia cases.
- Early and aggressive management may be key in preventing complications.
Implications:
- This case highlights the importance of recognizing and managing prolonged hyperinsulinemic hypoglycemia in neonates.
- It underscores the potential for spontaneous resolution in some cases, even with prolonged symptoms.
- Further research into the natural history and optimal management strategies for this condition is warranted.
Abstract:
Hyperinsulinism is an important cause of hypoglycemia in early infancy. Many forms of hyperinsulinemic hypoglycemia are described: transient, prolonged, persistent. Transient forms are well recognized in infants of diabetic mother; prolonged forms are responsible for the hypoglycemia in small-for-date (SGA) infants and asphyxiated newborns. Persistent hyperinsulinemic hypoglycemia occurs in a group of congenital disorders associated with an abnormality of beta-cell regulation throughout the pancreas. Accurate diagnosis and treatment are essential in all various forms of hyperinsulinism also because newborns are at high risk of permanent brain damage. We report a case of prolonged hyperinsulinemic hypoglycemia in a SGA preterm, immediately treated with a high dose of glucose and glucocorticoid and then with diazoxide. Hypoglycemia was continued until 2 months of age when it resolved spontaneously and completely.
Related Concept Videos
Hypoglycemia and Glucagon
Hypoglycemia
Diabetes Mellitus: Type 2 and Gestational
Insulin: Dosing Regimen and Adverse Effects
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
Hyperglycemia
Pathophysiology of Diabetes
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility, suggesting a...