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Congenital Hyperinsulinism International


P.O. Box 135
Glen Ridge, NJ 07028



Email Address

[email protected]


The Congenital Hyperinsulinism International (CHI) is a voluntary, non-profit organization dedicated to improving the lives of children, adults, and families living with congenital hyperinsulinism. Congenital hyperinsulinism, also referred to as persistent hyperinsulinemic hypoglycemia of infancy (PHHI), is the most common cause of persistent hypoglycemia in infancy. It is due to defective negative feedback regulation of insulin secretion by low glucose levels. Early recognition, diagnosis, and treatment are necessary to prevent or minimize neurologic damage from recurrent or prolonged episodes of hypoglycemia.

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