Genetic characteristics and long-term follow-up of 11 patients with congenital hyperinsulinism followed in a single center.

Background: Congenital hyperinsulinism (CHI) is a rare disease with an estimated incidence of 1:40,000 live births. Here, we characterize 11 patients treated at Munich Children's Hospital Schwabing.

Methods: We analyzed data on birth, treatment and laboratory results including genetic testing and evaluated the long-term course with a follow-up visit.