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CONGENITAL CENTRAL HYPOVENTILATION SYNDROME WITH HYPERINSULINISM IN A PRETERM INFANT
  1. U Hennewig1,2,
  2. B Hadzik1,
  3. M Vogel1,
  4. T Meissner1,
  5. T Goecke3,
  6. H Peters4,
  7. G Selzer5,
  8. E Mayatepek1,
  9. T Hoehn1
  1. 1Department of General Pediatrics, University Hospital Duesseldorf, Duesseldorf, Germany
  2. 2Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Duesseldorf, Duesseldorf, Germany
  3. 3Institute of Human Genetics and Anthropology, University Hospital Duesseldorf, Duesseldorf, Germany
  4. 4Institute of Medical Genetics, Charité University Medicine, Berlin, Germany
  5. 5Department of Pediatric Intensive Care Medicine, Klinikum Bremen, Bremen, Germany

Abstract

Congenital central hypoventilation syndrome (CCHS), a rare disorder typically presenting in the newborn period, results from PHOX2B polyalanine repeat mutations in over 90% of cases. It is characterized by alveolar hypoventilation, symptoms of autonomic nervous system dysregulation, and in a subset of cases Hirschsprung’s disease and later tumors of neural crest origin. We describe a preterm infant with severe phenotype of CCHS and hyperinsulinism. A novel de novo heterozygote missence mutation (Gly68Cys) in the PHOX2B gene could be identified. Based on the observation of three patients presenting with the combination of congenital hyperinsulinism and CCHS, hyperinsulinism might represent an additional clinical feature of CCHS.

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