Congenital hyperinsulinism in a preterm newborn with persistent hypoglycemia: a case report

Congenital hyperinsulinism is a rare disorder can be associated with serious brain damage and neurodevelopmental delay in neonates. This disorder is an uncommon cause of neonatal hypoglycemia and most of the affected newborns are results of term pregnancies. In this paper, we report a case of persistent hypoglycemia due to congenital hyperinsulinism in a preterm neonate who also had hypertrophic cardiomyopathy. We describe the importance of early diagnosis and intervention in neonates who have persistent hypoglycemia unresponsive to medical treatments and we recommend performing of echocardiography in these patients.