Hypoglycaemic seizures are sometimes misdiagnosed as epilepsy. We have to pay attention to hyperinsulinemic hypoglycaemia when we see seizures with normal EEG even in infants. [ncbi.nlm.nih.gov]

Since 1989, pathologists have identified 2 different forms of the disease: a diffuse form (DiPHHI) and a focal form (FoPHHI). [ncbi.nlm.nih.gov]

Children who have prolonged or recurrent hyperinsulinemic hypoglycemia in infancy can suffer harm to their brains and may be developmentally delayed. [en.wikipedia.org]

Autoimmune insulin syndrome Noninsulinoma pancreatogenous hypoglycemia Reactive hypoglycemia (also see idiopathic postprandial syndrome) Gastric dumping syndrome Drug induced hyperinsulinism Sulfonylurea Aspirin Pentamidine Quinine Disopyramide Bordetella pertussis [en.wikipedia.org]

At 7 months of age seizures reappeared, and hypoglycaemia associated with hyperinsulinism was observed during the seizures. With conservative therapy his blood sugar level was well controlled and he had no further seizures. [ncbi.nlm.nih.gov]

The blood sugar level was normal at that time, thus he was diagnosed as having benign infantile convulsion. At 7 months of age seizures reappeared, and hypoglycaemia associated with hyperinsulinism was observed during the seizures. [ncbi.nlm.nih.gov]

Brain damage of various types ranging from stroke-like focal effects to impaired memory and thinking can occur. [en.wikipedia.org]

For instance, babies with neonatal hyperinsulinism are often large for gestational age and may have other features such as enlarged heart and liver. [en.wikipedia.org]