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Published on: November 16, 2011
Congenital hyperinsulinism
Christoffer Drabløs Velde1, Hallvard Reigstad2, Erling Tjora3
1Klinisk institutt 1, Universitetet i Bergen.
Insights
Congenital hyperinsulinism, a rare genetic disorder, causes persistent neonatal hypoglycemia due to excessive insulin. Early diagnosis and treatment are vital to prevent severe neurological damage and ensure better outcomes for affected infants.
Area of Science:
- Pediatrics
- Endocrinology
- Genetics
Background:
- Congenital hyperinsulinism is the most frequent cause of persistent hypoglycemia in neonates.
- It is a rare monogenic disorder resulting from mutations in genes controlling insulin secretion from pancreatic beta cells.
- Uncontrolled insulin secretion leads to detrimental effects on the central nervous system, potentially causing brain damage or death.
Purpose of the Study:
- To provide clinicians managing pediatric and neonatal patients with an overview of congenital hyperinsulinism.
- To cover the diagnostic and therapeutic strategies for this condition.
Main Methods:
- This is a clinical review.
- It synthesizes current knowledge on diagnosis and treatment.
Main Results:
- The review details the pathophysiology of congenital hyperinsulinism, emphasizing the role of genetic mutations and insulin's effects.
- It highlights the critical impact of low glucose and ketone bodies on the central nervous system.
Conclusions:
- Prompt diagnosis and intervention are essential for improving the prognosis of congenital hyperinsulinism.
- Understanding the genetic basis and clinical presentation is key for effective management.
Abstract:
This clinical review will give doctors who work with children and neonates an introduction to the diagnosis and treatment of congenital hyperinsulinism, the most common cause of persistent neonatal hypoglycaemia. The condition is a rare monogenic disorder characterised by elevated insulin secretion and is a result of mutations in genes that regulate insulin secretion from pancreatic beta cells. The anabolic effect of insulin induces systemic glucose uptake and inhibits gluconeogenesis, glycogenolysis, ketogenesis and lipolysis. Low levels of glucose and ketone bodies in the blood are harmful to the central nervous system and can lead to brain damage or death. Early diagnosis and treatment of congenital hyperinsulinism are therefore crucial for a good prognosis.
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