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Deliberate sulphonylurea poisoning mimicking hyperinsulinaemia of infancy
Insights
A six-month-old infant experienced seizures due to hyperinsulinism and hypoglycemia. High blood sulfonylurea levels suggested intentional ingestion, pointing to Munchausen syndrome by proxy as a critical consideration in infant hypoglycemia cases.
Area of Science:
- Pediatrics
- Endocrinology
- Toxicology
Background:
- Infantile hypoglycemia is a critical condition requiring prompt diagnosis.
- Hyperinsulinism is a common cause of persistent hypoglycemia in infants.
- Munchausen syndrome by proxy (MSbP) is a rare but serious form of child abuse.
Observation:
- A 6-month-old infant presented with seizures and documented hypoglycemia.
- Family history revealed type II diabetes.
- Elevated blood sulfonylurea levels were detected in the infant.
Findings:
- The infant's hypoglycemia was secondary to hyperinsulinism.
- The high sulfonylurea levels indicated exogenous ingestion.
- A multidisciplinary team diagnosed probable Munchausen syndrome by proxy.
Implications:
- MSbP should be considered in the differential diagnosis of unexplained infantile hypoglycemia.
- Early recognition and intervention are crucial for the child's well-being.
- This case highlights the importance of considering non-medical causes of severe infant illness.
Abstract:
A 6 month old child presenting with seizures was found to be hypoglycaemic secondary to hyperinsulinism. A family history of type II diabetes prompted estimation of sulphonylurea in the baby's blood, which was found to be high. A multidisciplinary case conference concluded that the sulphonylurea ingestion was likely to be the result of Munchausen syndrome by proxy. When investigating hypoglycaemia of infancy this possibility should be considered.