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Updated: May 5, 2026

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Published on: October 28, 2022
Secondary Hirata Syndrome in a Neonate: Practical Approach and Management
Alessandro Perri1, Simona Fattore1, Annamaria Sbordone1
1Department of Woman and Child Health Sciences, Child Health Area, University Hospital Agostino Gemelli, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Lazio, Italy.
Abstract:
Hirata disease, also known as insulin autoimmune syndrome (IAS), is a rare cause of hypoglycemia, due to the presence of insulin autoantibodies (IAA) in the circulating blood. These antibodies are immunoglobulin G (IgG), making placental transfer to the fetus possible. To our knowledge, no reports of IAS have been previously described in the neonatal population. We present a case report of hypoglycemia due to a secondary IAS in a neonate and discuss the management and treatment of the disease.

