Abstract
Hyperinsulinaemic hypoglycaemia (HH) is a major cause of hypoglycaemia in the neonatal period, infancy and childhood. It is caused by unsuppressed insulin secretion in the setting of hypoglycaemia and carries a high risk of significant neurological sequelae, such as cognitive impairment. Genetic mutations have been implicated in the pathogenesis of the condition. Other causes include intra-uterine growth retardation, perinatal asphyxia, maternal diabetes mellitus and syndromes, such as Beckwith-Wiedemann. Based on the aetiology, the clinical presentation can range from absence of symptoms to the typical adrenergic symptoms and coma and even death. The diagnosis is based on biochemical findings and the gold-standard imaging technique is 18F-DOPA PET/CT scanning. Treatment options involve medications, such as diazoxide, nifedipine, glucagon and octreotide, as well as surgery. Novel treatment, such as long-acting octreotide, lanreotide and sirolimus, may be used as an alternative to pancreatectomy. Potential future medical treatments include exendin, a GLP-1 receptor antagonist, and glucagon infusion via a pump.
Conclusion: Advances in the fields of genetic testing, imaging techniques and medical treatment are beginning to provide novel insights into earlier detection, less invasive treatment approaches and fewer complications associated with the complex entity of hyperinsulinaemic hypoglycaemia.
What is Known: • HH is caused by dysregulated insulin release from the β cell due to genetic mutations and carries a risk for complications, such as neurocognitive impairment. 18F-DOPA PET/CT scanning is presented as the gold-standard imaging technique currently in children with hyperinsulinaemic hypoglycaemia. • Clinical presentation is heterogeneous and treatment options include medical therapy and pancreatectomy. | |
What is New: • 18F-DOPA PET/CT is indicated in suspected focal CHI due to paternal transmitted mutations in ABCC8 or KCNJ11. • Novel treatment options have been introduced, such as long-acting octreotide, lanreotide, sirolimus and selective nonpeptide somatostatin receptor subtype 5 (SSTR5) agonists. Future medical treatments include exendin, a GLP-1 antagonist, and glucagon infusion via a pump. However, all these options are off-label at present. |
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Abbreviations
- ACTH:
-
Adrenocorticotropic hormone
- ADP:
-
Adenosine diphosphate
- ATP:
-
Adenosine triphosphate
- CT:
-
Computed tomography
- EIF2S3:
-
Eukaryotic translation initiation factor 2 subunit gamma
- 18F-L-DOPA:
-
18-Fluoro-L-dihydroxyphenylalanine
- FOXA2:
-
Forkhead box A2
- GCK:
-
Glucokinase
- GH:
-
Growth hormone
- GLP-1:
-
Glucagon-like peptide-1
- GLUT2:
-
Glucose transporter 2
- GLUD1:
-
Glutamate dehydrogenase 1
- HA:
-
Hyperammonia
- HADH:
-
3-hyrdoxyacyl-coenzyme A dehydrogenase
- HH:
-
Hyperinsulinaemic hypoglycaemia
- HI:
-
Hyperinsulinism
- HK1:
-
Hexokinase 1
- HNF1A:
-
Homeobox A
- HNF4:
-
Hepatocyte nuclear factor 4-alpha
- IgG:
-
Immunoglobulin G
- KATP channels:
-
ATP-sensitive potassium channels
- Kir6.2:
-
Inward-rectifier potassium 6.2
- mTOR:
-
Mammalian target of rapamycin
- PET:
-
Positron emission tomography
- PGM1:
-
Phosphoglucomutase 1
- SLC16A1:
-
Solute carrier family 16 member 1
- SSTR:
-
Somatostatin receptor
- SUR1:
-
Sulfonylurea receptor 1
- TSH:
-
Thyroid-stimulating hormone
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Kostopoulou, E., Shah, P. Hyperinsulinaemic hypoglycaemia—an overview of a complex clinical condition. Eur J Pediatr 178, 1151–1160 (2019). https://doi.org/10.1007/s00431-019-03414-8
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DOI: https://doi.org/10.1007/s00431-019-03414-8